Orbital Analysis for matched events on 20210810_221901.846_UK

Summary for Event
-----------------
shower ID 7 PER
Lg 61.20° Bg 36.68° Vg 60.26km/s
mass 0.06758g, abs. mag -1.2
Path Details
------------
start 1.88° 51.51° 110.47km
end   1.68° 51.35° 95.89km

Orbit Details
-------------
Semimajor axis 29.48A.U., eccentricity 0.97, inclination 116.18°, Period 160.10Y, LA Sun 138.20°, last Perihelion 2021-07-20

Full details below
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Detailed report below graphs

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Input measurement type: Azimuth +east of due north for meas1, Elevation angle above the horizon for meas2

Uncertainties type:
 Purely geometric uncertainties

Reference JD: 2459437.429882488213
Time: 2021-08-10 22:19:01.860782 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK000C and UK002C
 Convergence angle = 8.87369 deg
 R.A. =  45.61843  Dec = +55.78441 deg
Intersection 2 - Stations: UK000C and UK002N
 Convergence angle = 0.33736 deg
 R.A. =  10.40340  Dec = +28.52925 deg
Intersection 3 - Stations: UK002C and UK002N
 Convergence angle = 8.60666 deg
 R.A. =  47.46680  Dec = +56.67095 deg

Best intersection: Stations UK000C and UK002C with Qconv = 8.87 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   1789849.26 +/- 385.47 m
 Y =  -3628964.77 +/- 62.62 m
 Z =   5055936.09 +/- 148.54 m
 Vx =    23491.54 +/- 1673.10 m/s
 Vy =    24552.07 +/- 729.03 m/s
 Vz =    50981.86 +/- 1424.59 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.520157e+05, +2.296869e+04, +5.696502e+04, +5.681953e+05, +1.025243e+05, +2.415474e+05
+2.296869e+04, +3.923413e+03, +8.994485e+03, +8.480611e+04, +1.611534e+04, +3.640944e+04
+5.696502e+04, +8.994485e+03, +2.243100e+04, +2.129644e+05, +3.948911e+04, +9.349980e+04
+5.681953e+05, +8.480611e+04, +2.129644e+05, +2.472984e+06, +4.657401e+05, +1.082599e+06
+1.025243e+05, +1.611534e+04, +3.948911e+04, +4.657401e+05, +1.054491e+05, +2.329446e+05
+2.415474e+05, +3.640944e+04, +9.349980e+04, +1.082599e+06, +2.329446e+05, +5.345689e+05

Timing offsets (from input data):
    UK000C: -0.000359 s
    UK002C: 0.000000 s
    UK002N: -0.000250 s

Reference point on the trajectory:
  Time: 2021-08-10 22:19:01.860782 UTC
  Lon     = ++1.885607 +/- 0.0053 deg
  Lat     = +51.513538 +/- 0.0003 deg
  Lat geo = +51.329132 +/- 0.0003 deg
  Ht      =  110636.65 +/- 187.87 m

  JD dynamic   = 2459437.430683388840 
  LST apparent = 296.2530718552 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  46.26455 +/- 1.8505 deg
  Dec       = +56.31590 +/- 0.6605 deg
  Azimuth   =  38.02528 +/- 1.3836 deg
  Elevation = +32.22347 +/- 0.1808 deg
  Vavg      =  61.63095 +/- 1.2548 km/s
  Vinit     =  61.26831 +/- 1.2595 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  46.09567 +/- 1.8505 deg
  Dec       = +56.10058 +/- 0.6605 deg
  Azimuth   =  38.28132 +/- 1.3836 deg
  Elevation = +32.13280 +/- 0.1808 deg
  Vavg      =  61.78523 +/- 1.2548 km/s
  Vinit     =  61.42260 +/- 1.2595 km/s
Radiant (geocentric, J2000):
  R.A.   =  46.51228 +/- 1.8766 deg
  Dec    = +55.85053 +/- 0.6383 deg
  Vg     =  60.25533 +/- 1.2825 km/s
  Vinf   =  61.26831 +/- 1.2595 km/s
  Zc     =  57.92186 +/- 0.1832 deg
  Zg     =  58.45049 +/- 0.2088 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  61.20420 +/- 1.4630 deg
  Bg     = +36.67686 +/- 0.2855 deg
  Vh     =  41.47741 +/- 0.7971 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  79.08028 +/- 4.5812 deg
  Bh     = +60.19674 +/- 0.3985 deg
  Vh_x   =  -3.90521 +/- 1.5614 km/s
  Vh_y   = -20.24197 +/- 0.5860 km/s
  Vh_z   = -35.99149 +/- 0.5679 km/s
Orbit:
  La Sun = 138.201367 +/- 0.0000 deg
  a      =  29.484119 +/- 5.7704 AU
  e      =   0.967895 +/- 0.0619
  i      = 116.177909 +/- 1.7051 deg
  peri   = 149.943588 +/- 4.9924 deg
  node   = 138.199566 +/- 0.0001 deg
  Pi     = 288.143154 +/- 4.9923 deg
  q      =   0.946575 +/- 0.0219 AU
  f      =  30.052158 +/- 4.9925 deg
  M      =   0.129064 +/- 1.4136 deg
  Q      =  58.021663 +/- 11.5234 AU
  n      =   0.006156 +/- 0.0420 deg/day
  T      = 160.096881 +/- 32.0550 years
  Last perihelion JD = 2459416.466200 (2021-07-20 23:11:19.665126) +/- 3.3657 days
  Tj     =  -0.351356 +/- 0.4176
Shower association:
  IAU No.  =    7
  IAU code =  PER

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +3.918355e-03, +1.295984e-03, +2.059068e-01, -1.405062e-07, +5.256514e-03, +1.791655e-03
q   , +1.295984e-03, +4.819105e-04, +7.393210e-02, -5.120761e-08, +1.918064e-03, +6.538994e-04
Tp  , +2.059068e-01, +7.393210e-02, +1.146640e+01, -7.908695e-06, +2.960267e-01, +1.009182e-01
node, -1.405062e-07, -5.120761e-08, -7.908695e-06, +5.486987e-12, -2.045848e-07, -7.002293e-08
peri, +5.256514e-03, +1.918064e-03, +2.960267e-01, -2.045848e-07, +7.659557e-03, +2.611265e-03
i   , +1.791655e-03, +6.538994e-04, +1.009182e-01, -7.002293e-08, +2.611265e-03, +8.937770e-04

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 32.905093
 a2 = 0.000000

Mean time residuals from time vs. length:
  Station with reference time: UK002C
  Avg. res. = 3.170e-06 s
  Stddev    = 1.78e-03 s

Begin point on the trajectory:
  Lon =     1.883349 +/- 0.0057 deg
  Lat =    51.511737 +/- 0.0005 deg
  Ht  = 110473.47 +/- 227.08 m
End point on the trajectory:
  Lon =     1.679329 +/- 0.0051 deg
  Lat =    51.349649 +/- 0.0002 deg
  Ht  = 95885.02 +/- 183.92 m

Stations
--------
        ID, Ignored, Lon +E (deg), Lat +N (deg),  Ht (m), Jacchia a1, Jacchia a2,  Beg Ht (m),  End Ht (m), +/- Obs ang (deg), +/- V (m), +/- H (m), Persp. angle (deg), Weight, FOV Beg, FOV End, Comment
    UK000C,   False,    -0.727590,    51.263100,   57.00,   0.331277,  18.574187,   110473.47,    98684.63,          0.014565,     52.12,      9.97,              37.90, 0.3773,    True,   False, {"ff_name": "FF_UK000C_20210810_221903_118_0186624.fits"}
    UK002C,   False,    -1.801980,    51.351940,  130.00,   0.000000,  48.875057,   108053.48,    96324.37,          0.009168,     40.92,     14.53,              44.45, 0.4904,    True,    True, {"ff_name": "FF_UK002C_20210810_221854_941_0183296.fits"}
    UK002N,   False,    -0.727590,    51.263100,   57.00,   3.743989,   0.000000,   109213.32,    95885.02,          0.016277,     56.25,     10.81,              37.90, 0.3773,    True,    True, {"ff_name": "FF_UK002N_20210810_221855_102_0190208.fits"}

Points
------
 No, Station ID,  Ignore,  Time (s),                   JD,     meas1,     meas2, Azim +E of due N (deg), Alt (deg), Azim line (deg), Alt line (deg), RA obs (deg), Dec obs (deg), RA line (deg), Dec line (deg),       X (m),       Y (m),       Z (m), Latitude (deg), Longitude (deg), Height (m),  Range (m), Length (m), State vect dist (m),  Lag (m), Vel (m/s), Vel prev avg (m/s), H res (m), V res (m), Ang res (asec), AppMag, AbsMag
  0,     UK000C,       0,  0.013427, 2459437.429882647935,  10.51351,  28.73073,               80.33362,  29.97125,        80.32706,       29.94666,     10.51351,     +28.73073,      10.53791,      +28.71726,  1789731.93, -3629087.40,  5055681.45,      51.511737,       +1.883349,  110473.47,  215798.41,       0.00,              306.02,  -443.58,      0.00,           65156.52,     17.85,     93.39,          90.88,  +2.41,  +0.74
  1,     UK000C,       0,  0.053427, 2459437.429883110803,  10.26343,  28.31773,               80.84873,  29.83175,        80.85143,       29.84165,     10.26343,     +28.31773,      10.25386,      +28.32313,  1788631.87, -3630237.12,  5053294.07,      51.494838,       +1.862014,  108944.15,  213515.53,    2869.07,             3175.09,   -25.24,  71726.68,           65156.52,     -7.15,    -37.24,          36.63,  +2.08,  +0.43
  2,     UK000C,       0,  0.093379, 2459437.429883573204,   9.97134,  27.94983,               81.35757,  29.74998,        81.35448,       29.73885,      9.97134,     +27.94983,       9.98272,      +27.94377,  1787595.95, -3631319.80,  5051045.91,      51.478913,       +1.841919,  107504.82,  211378.39,    5570.83,             5876.86,   228.73,  67625.33,           65156.52,      7.94,     41.48,          41.21,  +1.55,  -0.08
  3,     UK000C,       0,  0.133367, 2459437.429884036072,   9.75636,  27.62801,               81.77323,  29.65311,        81.77292,       29.65200,      9.75636,     +27.62801,       9.75801,      +27.62741,  1786748.15, -3632205.88,  5049205.99,      51.465873,       +1.825446,  106327.43,  209637.31,    7781.99,             8088.01,   -10.12,  55295.37,           65156.52,      0.78,      4.09,           4.10,  +1.11,  -0.50
  4,     UK000C,       0,  0.173323, 2459437.429884498473,   9.47840,  27.26611,               82.26699,  29.56630,        82.26188,       29.54843,      9.47840,     +27.26611,       9.49674,      +27.25641,  1785773.24, -3633224.80,  5047090.22,      51.450869,       +1.806533,  104974.18,  207647.93,   10324.65,            10630.67,    84.51,  63636.52,           63948.53,     12.53,     65.55,          66.29,  +0.82,  -0.77
  5,     UK000C,       0,  0.213295, 2459437.429884961341,   9.23951,  26.92929,               82.71201,  29.47294,        82.70614,       29.45275,      9.23951,     +26.92929,       9.26027,      +26.91835,  1784901.52, -3634135.87,  5045198.39,      51.437445,       +1.789608,  103764.75,  205878.46,   12598.19,            12904.21,   -90.97,  56878.33,           62593.31,     14.04,     73.49,          74.96,  +1.00,  -0.57
  6,     UK000C,       0,  0.253275, 2459437.429885424208,   8.98298,  26.53757,               83.21371,  29.35074,        83.21106,       29.34180,      8.98298,     +26.53757,       8.99283,      +26.53274,  1783926.70, -3635154.70,  5043082.81,      51.422424,       +1.770705,  102412.95,  203912.91,   15140.62,            15446.65,     1.96,  63592.65,           62216.34,      6.17,     32.25,          33.21,  +0.91,  -0.64
  7,     UK000C,       0,  0.293259, 2459437.429885886610,   8.74038,  26.16095,               83.69281,  29.23030,        83.69386,       29.23380,      8.74038,     +26.16095,       8.73816,      +26.16284,  1783009.79, -3636113.01,  5041092.92,      51.408288,       +1.752919,  101142.08,  202075.41,   17532.01,            17838.03,   -56.40,  59808.63,           61858.56,     -2.41,    -12.55,          13.05,  +0.74,  -0.79
  8,     UK000C,       0,  0.333215, 2459437.429886349477,   8.47368,  25.80893,               84.17010,  29.14220,        84.16531,       29.12651,      8.47368,     +25.80893,       8.49048,      +25.80048,  1782128.35, -3637034.24,  5039179.99,      51.394690,       +1.735819,   99920.95,  200319.73,   19830.90,            20136.93,  -205.55,  57535.57,           61403.55,     10.66,     55.77,          58.47,  +0.67,  -0.84
  9,     UK000C,       0,  0.373191, 2459437.429886811879,   8.22509,  25.43200,               84.65347,  29.02444,        84.65029,       29.01415,      8.22509,     +25.43200,       8.23674,      +25.42648,  1781235.51, -3637967.38,  5037242.35,      51.380909,       +1.718503,   98684.63,  198552.95,   22159.50,            22465.52,  -326.21,  58249.89,           60999.87,      6.93,     36.26,          38.35,  +0.80,  -0.69
  0,     UK002C,       1,  0.000000, 2459437.429882488213,  12.51817,  20.28320,               84.51447,  21.89712,        84.53108,       21.93508,     12.51817,     +20.28320,      12.47904,      +20.30142,  1789898.32, -3628913.49,  5056042.57,      51.514292,       +1.886609,  110704.88,  281913.20,       0.00,              127.96,   201.03,      0.00,           61727.46,    -67.62,   -189.89,         147.48,  +4.83,  +2.58
  1,     UK002C,       0,  0.080288, 2459437.429883417673,  12.15599,  19.66096,               85.23273,  21.65595,        85.23856,       21.66915,     12.15599,     +19.66096,      12.14274,      +19.66729,  1787990.90, -3630907.02,  5051903.05,      51.484986,       +1.849572,  108053.48,  278325.97,    4974.74,             4846.78,     0.74,  61961.19,           61727.46,    -23.21,    -65.32,          51.37,  +2.15,  -0.07
  2,     UK002C,       0,  0.120428, 2459437.429883881938,  11.97771,  19.35824,               85.58347,  21.53963,        85.58289,       21.53832,     11.97771,     +19.35824,      11.97956,      +19.35762,  1787077.46, -3631861.70,  5049920.67,      51.470939,       +1.831835,  106784.70,  276622.99,    7357.09,             7229.13,   -76.22,  59351.03,           61727.46,      2.28,      6.43,           5.09,  +1.98,  -0.23
  3,     UK002C,       0,  0.160596, 2459437.429884347133,  11.80532,  19.01362,               85.95918,  21.38793,        85.96157,       21.39326,     11.80532,     +19.01362,      11.80051,      +19.01617,  1786083.79, -3632900.23,  5047764.18,      51.455649,       +1.812559,  105405.17,  274782.94,    9948.69,             9820.73,    54.36,  64518.94,           61727.46,     -9.27,    -26.10,          20.79,  +1.58,  -0.61
  4,     UK002C,       0,  0.200752, 2459437.429884811863,  11.63926,  18.69459,               86.31165,  21.25130,        86.31430,       21.25719,     11.63926,     +18.69459,      11.63404,      +18.69740,  1785168.23, -3633857.12,  5045777.22,      51.441553,       +1.794789,  104134.73,  273097.59,   12336.55,            12208.59,   -18.07,  59464.72,           61543.18,    -10.19,    -28.71,          23.01,  +1.52,  -0.66
  5,     UK002C,       0,  0.240916, 2459437.429885276593,  11.45077,  18.34546,               86.70222,  21.10573,        86.70245,       21.10623,     11.45077,     +18.34546,      11.45126,      +18.34570,  1784171.65, -3634898.70,  5043614.41,      51.426200,       +1.775466,  102752.56,  271276.15,   14935.75,            14807.79,   120.34,  64714.54,           61838.76,     -0.86,     -2.43,           1.96,  +1.43,  -0.74
  6,     UK002C,       0,  0.281068, 2459437.429885741323,  11.31614,  18.04552,               87.01654,  20.96340,        87.02424,       20.98035,     11.31614,     +18.04552,      11.29992,      +18.05360,  1783353.94, -3635753.32,  5041839.79,      51.413595,       +1.759584,  101619.00,  269789.27,   17068.42,            16940.47,  -207.02,  53115.10,           61175.43,    -29.02,    -81.67,          66.26,  +1.24,  -0.92
  7,     UK002C,       0,  0.321236, 2459437.429886206053,  11.12365,  17.68890,               87.41482,  20.81413,        87.41950,       20.82439,     11.12365,     +17.68890,      11.11447,      +17.69378,  1782359.77, -3636792.37,  5039682.23,      51.398261,       +1.740316,  100241.50,  267995.76,   19661.32,            19533.36,   -75.16,  64551.21,           61114.10,    -17.46,    -49.17,          40.16,  +1.07,  -1.07
  8,     UK002C,       0,  0.361408, 2459437.429886671249,  10.93127,  17.32577,               87.81723,  20.65957,        87.81981,       20.66518,     10.93127,     +17.32577,      10.92702,      +17.32845,  1781364.20, -3637832.89,  5037521.62,      51.382896,       +1.721025,   98862.80,  266213.05,   22257.87,            22129.91,    60.12,  64635.77,           61293.57,     -9.50,    -26.77,          22.01,  +1.13,  -1.00
  9,     UK002C,       0,  0.401560, 2459437.429887135979,  10.75242,  16.99444,               88.18666,  20.52033,        88.18586,       20.51859,     10.75242,     +16.99444,      10.75587,      +16.99362,  1780463.51, -3638774.24,  5035566.93,      51.368987,       +1.703561,   97616.11,  264610.90,   24606.95,            24478.99,   -50.84,  58504.76,           61251.09,      2.92,      8.23,           6.81,  +1.29,  -0.82
 10,     UK002C,       0,  0.441724, 2459437.429887600709,  10.56806,  16.64531,               88.57243,  20.37076,        88.56925,       20.36389,     10.56806,     +16.64531,      10.57694,      +16.64205,  1779529.82, -3639750.08,  5033540.62,      51.354560,       +1.685468,   96324.37,  262962.41,   27042.10,            26914.14,   -76.47,  60630.25,           61200.83,     11.49,     32.40,          26.97,  +1.06,  -1.04
 11,     UK002C,       1,  0.481928, 2459437.429888065904,  10.51469,  16.32143,               88.83864,  20.15827,        88.87650,       20.23930,     10.51469,     +16.32143,      10.43364,      +16.35984,  1778788.59, -3640524.77,  5031931.98,      51.343101,       +1.671072,   95299.32,  261660.25,   28975.30,            28847.34,  -606.50,  48084.74,           60697.63,   -135.86,   -380.52,         318.51,  +4.35,  +2.26
  0,     UK002N,       0,  0.048288, 2459437.429883050267,  10.29871,  28.39611,               80.75980,  29.86579,        80.75836,       29.86053,     10.29871,     +28.39611,      10.30412,      +28.39324,  1788825.53, -3630034.71,  5053714.37,      51.497814,       +1.865762,  109213.32,  213915.94,       0.00,             2670.00,  -215.46,      0.00,           64392.28,      3.80,     19.83,          19.47,  +2.38,  +0.73
  1,     UK002N,       0,  0.088532, 2459437.429883515928,  10.08542,  28.06439,               81.18234,  29.76117,        81.18585,       29.77387,     10.08542,     +28.06439,      10.07324,      +28.07132,  1787940.94, -3630959.24,  5051794.60,      51.484218,       +1.848575,  107984.06,  212086.57,    2307.11,             4977.10,  -374.03,  57327.98,           64392.28,     -9.12,    -47.48,          47.02,  +1.14,  -0.49
  2,     UK002N,       0,  0.128820, 2459437.429883982521,   9.78160,  27.66480,               81.72523,  29.66378,        81.72475,       29.66207,      9.78160,     +27.66480,       9.78383,      +27.66387,  1786845.11, -3632104.54,  5049416.41,      51.467365,       +1.827330,  106462.05,  209835.98,    5165.14,             7835.14,    15.63,  70940.11,           64392.28,      1.21,      6.33,           6.34,  +1.06,  -0.55
  3,     UK002N,       0,  0.169092, 2459437.429884448182,   9.52727,  27.29429,               82.20862,  29.55619,        82.20959,       29.55960,      9.52727,     +27.29429,       9.52462,      +27.29614,  1785876.70, -3633116.67,  5047314.75,      51.452462,       +1.808540,  105117.76,  207858.49,    7690.84,            10360.84,    73.93,  62716.06,           64392.28,     -2.40,    -12.49,          12.62,  +1.09,  -0.50
  4,     UK002N,       0,  0.209376, 2459437.429884914774,   9.28815,  26.91347,               82.68889,  29.43139,        82.69575,       29.45488,      9.28815,     +26.91347,       9.26588,      +26.92618,  1784921.82, -3634114.66,  5045242.44,      51.437757,       +1.790015,  103792.91,  205920.33,   10181.28,            12851.28,    96.24,  61821.98,           63928.69,    -16.46,    -85.55,          87.27,  +0.82,  -0.75
  5,     UK002N,       0,  0.249624, 2459437.429885380436,   9.04806,  26.57015,               83.13970,  29.33374,        83.14635,       29.35619,      9.04806,     +26.57015,       9.02700,      +26.58228,  1784050.69, -3635025.11,  5043351.90,      51.424335,       +1.773103,  102584.85,  204161.87,   12453.27,            15123.26,   -97.71,  56449.65,           62728.54,    -15.61,    -81.15,          83.49,  +0.84,  -0.71
  6,     UK002N,       0,  0.289904, 2459437.429885846563,   8.75440,  26.18024,               83.66709,  29.23549,        83.66830,       29.23951,      8.75440,     +26.18024,       8.75166,      +26.18241,  1783057.99, -3636062.63,  5041197.53,      51.409031,       +1.753860,  101208.88,  202172.06,   15042.32,            17712.32,    23.46,  64276.45,           62465.71,     -2.77,    -14.43,          14.99,  +0.47,  -1.06
  7,     UK002N,       0,  0.330200, 2459437.429886313155,   8.50029,  25.77972,               84.17340,  29.10453,        84.17910,       29.12316,      8.50029,     +25.77972,       8.48337,      +25.78974,  1782102.82, -3637060.92,  5039124.60,      51.394296,       +1.735341,   99885.62,  200270.16,   17533.49,            20203.49,    45.77,  61821.85,           62302.49,    -12.72,    -66.21,          69.44,  +0.32,  -1.19
  8,     UK002N,       0,  0.370520, 2459437.429886779748,   8.20794,  25.34411,               84.73561,  28.97147,        84.74207,       28.99223,      8.20794,     +25.34411,       8.18912,      +25.35525,  1781068.19, -3638142.25,  5036879.23,      51.378326,       +1.715301,   98453.04,  198225.79,   20231.91,            22901.91,   273.85,  66925.10,           62534.91,    -14.05,    -73.11,          77.46,  +0.54,  -0.95
  9,     UK002N,       0,  0.410772, 2459437.429887245409,   7.97109,  24.99498,               85.18788,  28.86598,        85.19405,       28.88553,      7.97109,     +24.99498,       7.95364,      +25.00545,  1780250.72, -3638996.63,  5035105.13,      51.365700,       +1.699436,   97321.67,  196619.63,   22363.96,            25033.96,   -60.27,  52967.55,           62131.64,    -13.13,    -68.36,          73.02,  +0.60,  -0.87
 10,     UK002N,       0,  0.451104, 2459437.429887712467,   7.66584,  24.54276,               85.77221,  28.72779,        85.77766,       28.74473,      7.66584,     +24.54276,       7.65114,      +24.55182,  1779212.13, -3640082.11,  5032851.15,      51.349649,       +1.679329,   95885.02,  194596.53,   25072.73,            27742.72,   177.41,  67161.59,           62140.63,    -11.27,    -58.71,          63.36,  +0.48,  -0.97

Notes
-----
- Points that have not been taken into consideration when computing the trajectory have '1' in the 'Ignore' column.
- The time already has time offsets applied to it.
- 'meas1' and 'meas2' are given input points.
- X, Y, Z are ECI (Earth-Centered Inertial) positions of projected lines of sight on the radiant line.
- Zc is the observed zenith distance of the entry angle, while the Zg is the entry zenith distance corrected for Earth's gravity.
- Latitude (deg) and Longitude (deg) are in WGS84 coordinates, while Height (m) is in the EGM96 datum. There values are coordinates of each point on the radiant line.
- Jacchia (1955) deceleration equation fit was done on the lag.
- Right ascension and declination in the table are given in the epoch of date for the corresponding JD, per every point.
- 'RA and Dec obs' are the right ascension and declination calculated from the observed values, while the 'RA and Dec line' are coordinates of the lines of sight projected on the fitted radiant line. The coordinates are in the epoch of date, and NOT J2000!. 'Azim and alt line' are thus corresponding azimuthal coordinates.
- 'Vel prev avg' is the average velocity including all previous points up to the given point. For the first 4 points this velocity is computed as the average velocity of those 4 points.