Orbital Analysis for matched events on 20210810_003409.728_UK

Summary for Event
-----------------
shower ID 7 PER
Lg 62.53° Bg 36.19° Vg 61.56km/s
mass 0.09362g, abs. mag -1.4
Path Details
------------
start -1.17° 53.20° 109.94km
end   -1.36° 53.11° 93.77km

Orbit Details
-------------
Semimajor axis -11.39A.U., eccentricity 1.08, inclination 117.05°, Period 1000000000.00Y, LA Sun 137.33°, 

Full details below
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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: 2459436.523723709863
Time: 2021-08-10 00:34:09.741004 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001L and UK002Z
 Convergence angle = 83.60505 deg
 R.A. =  48.69025  Dec = +55.79217 deg

Best intersection: Stations UK001L and UK002Z with Qconv = 83.61 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3232566.59 +/- 43.43 m
 Y =  -2172599.36 +/- 35.66 m
 Z =   5172948.52 +/- 88.32 m
 Vx =    23194.61 +/- 405.88 m/s
 Vy =    26150.45 +/- 554.31 m/s
 Vz =    51878.55 +/- 798.79 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+2.426668e+03, +4.297099e+01, +5.561487e+03, +5.313852e+03, -1.205281e+04, +7.242868e+03
+4.297099e+01, +4.457592e+01, +8.938008e+00, +1.264809e+02, -1.617109e+02, +3.811722e+01
+5.561487e+03, +8.938008e+00, +1.292893e+04, +1.211221e+04, -2.772858e+04, +1.678357e+04
+5.313852e+03, +1.264809e+02, +1.211221e+04, +1.166006e+04, -2.635470e+04, +1.579362e+04
-1.205281e+04, -1.617109e+02, -2.772858e+04, -2.635470e+04, +5.992515e+04, -3.608039e+04
+7.242868e+03, +3.811722e+01, +1.678357e+04, +1.579362e+04, -3.608039e+04, +2.180320e+04

Timing offsets (from input data):
    UK001L: 0.000000 s
    UK001Z: 0.000000 s
    UK002F: 0.000000 s
    UK002Z: 0.000502 s

Reference point on the trajectory:
  Time: 2021-08-10 00:34:09.741004 UTC
  Lon     = +-1.162110 +/- 0.0006 deg
  Lat     = +53.204705 +/- 0.0003 deg
  Lat geo = +53.023105 +/- 0.0003 deg
  Ht      =  110752.29 +/- 90.11 m

  JD dynamic   = 2459436.524524595123 
  LST apparent = 326.0950579034 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  48.42800 +/- 0.2856 deg
  Dec       = +56.02867 +/- 0.1211 deg
  Azimuth   =  51.72061 +/- 0.0806 deg
  Elevation = +45.13359 +/- 0.1919 deg
  Vavg      =  59.30588 +/- 0.0488 km/s
  Vinit     =  62.55573 +/- 0.8742 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  48.48961 +/- 0.2856 deg
  Dec       = +55.81538 +/- 0.1211 deg
  Azimuth   =  51.94790 +/- 0.0806 deg
  Elevation = +44.98900 +/- 0.1919 deg
  Vavg      =  59.46361 +/- 0.0488 km/s
  Vinit     =  62.71346 +/- 0.8742 km/s
Radiant (geocentric, J2000):
  R.A.   =  48.58725 +/- 0.2862 deg
  Dec    = +55.74438 +/- 0.1214 deg
  Vg     =  61.56385 +/- 0.8887 km/s
  Vinf   =  62.55573 +/- 0.8742 km/s
  Zc     =  44.97909 +/- 0.1919 deg
  Zg     =  45.35820 +/- 0.1933 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  62.52677 +/- 0.1509 deg
  Bg     = +36.18762 +/- 0.1606 deg
  Vh     =  42.75623 +/- 0.7881 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  81.79503 +/- 0.7501 deg
  Bh     = +58.23089 +/- 0.4932 deg
  Vh_x   =  -3.21266 +/- 0.3640 km/s
  Vh_y   = -22.28062 +/- 0.6539 km/s
  Vh_z   = -36.35035 +/- 0.5256 km/s
Orbit:
  La Sun = 137.331899 +/- -0.0000 deg
  a      = -11.388888 +/- 9.8292 AU
  e      =   1.081410 +/- 0.0691
  i      = 117.048143 +/- 0.6093 deg
  peri   = 146.677419 +/- 1.4792 deg
  node   = 137.330865 +/- 0.0000 deg
  Pi     = 284.008284 +/- 1.4791 deg
  q      =   0.927171 +/- 0.0047 AU
  f      =  33.318459 +/- 1.4792 deg
  M      =        nan +/- nan deg
  Q      = -23.704947 +/- 19.6620 AU
  n      =   0.025644 +/- 0.0123 deg/day
  T      = 1000000000.000000 +/- 399999975.5787 years
  Last perihelion JD = NaN 
  Tj     =  -1.010783 +/- 0.4106
Shower association:
  IAU No.  =    7
  IAU code =  PER

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +1.042219e-04, +4.135646e-05, +6.040046e-03, +2.962219e-09, +1.600146e-04, -3.748674e-05
q   , +4.135646e-05, +1.648964e-05, +2.405982e-03, +1.176837e-09, +6.377364e-05, -1.489357e-05
Tp  , +6.040046e-03, +2.405982e-03, +3.511207e-01, +1.718345e-07, +9.305925e-03, -2.174646e-03
node, +2.962219e-09, +1.176837e-09, +1.718345e-07, +8.421750e-14, +4.552882e-09, -1.065782e-09
peri, +1.600146e-04, +6.377364e-05, +9.305925e-03, +4.552882e-09, +2.466538e-04, -5.761917e-05
i   , -3.748674e-05, -1.489357e-05, -2.174646e-03, -1.065782e-09, -5.761917e-05, +1.348760e-05

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 2.675755
 a2 = 14.954025

Mean time residuals from time vs. length:
  Station with reference time: UK001L
  Avg. res. = 4.989e-06 s
  Stddev    = 2.23e-03 s

Begin point on the trajectory:
  Lon =    -1.171365 +/- 0.0003 deg
  Lat =    53.200319 +/- 0.0001 deg
  Ht  = 109943.89 +/- 40.13 m
End point on the trajectory:
  Lon =    -1.359140 +/- 0.0003 deg
  Lat =    53.111763 +/- 0.0003 deg
  Ht  = 93774.78 +/- 38.85 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
    UK001L,   False,    -1.306160,    51.883100,   80.00,   0.344637,  20.091099,   109013.84,    93774.78,          0.018046,     39.09,     37.88,              36.39, 1.0000,    True,    True, {"ff_name": "FF_UK001L_20210810_003404_968_0366336.fits"}
    UK001Z,    True,    -2.949729,    50.877448,   82.00,  13.532039,   9.360800,   105861.00,    94135.57,          0.098504,       nan,       nan,              31.00, 0.0000,    True,    True, {"ff_name": "FF_UK001Z_20210810_003405_926_0379136.fits"}
    UK002F,    True,    -1.306160,    51.883100,   80.00,   0.000000,   0.000000,   110879.48,   105790.20,          0.041938,       nan,       nan,              36.39, 0.0000,    True,   False, {"ff_name": "FF_UK002F_20210810_003409_748_0360192.fits"}
    UK002Z,   False,    -0.382830,    53.537790,   34.00,   4.644238,  13.697414,   109943.89,    94532.23,          0.014872,     20.37,     25.54,              74.93, 1.0000,    True,    True, {"ff_name": "FF_UK002Z_20210810_003402_113_0376064.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,     UK001L,       1,  0.000000, 2459436.523723709863, 135.04642,  73.90750,                3.71668,  36.00912,         3.72719,       35.99303,    135.04642,     +73.90750,     135.02446,      +73.89035,  3232531.89, -2172638.48,  5172870.90,      53.204343,       -1.162820,  110682.81,  185258.15,       0.00,               93.59,   139.26,      0.00,           60892.95,     40.99,     42.24,          65.53,  +4.61,  +3.27
  1,     UK001L,       0,  0.040276, 2459436.523724175990, 136.49603,  73.73506,                3.25129,  35.78387,         3.24820,       35.78855,    136.49603,     +73.73506,     136.50299,      +73.74002,  3231658.85, -2173622.79,  5170918.19,      53.195251,       -1.182171,  109013.84,  183365.03,    2354.59,             2448.19,   -25.64,  58461.48,           60892.95,    -11.84,    -12.21,          19.13,  +1.77,  +0.45
  2,     UK001L,       0,  0.080568, 2459436.523724642582, 138.08693,  73.55098,                2.72938,  35.54975,         2.72225,       35.56044,    138.08693,     +73.55098,     138.10373,      +73.56221,  3230714.77, -2174687.17,  5168806.61,      53.185410,       -1.203085,  107209.56,  181330.28,    4900.77,             4994.36,     0.04,  63193.01,           60892.95,    -26.78,    -27.64,          43.78,  +1.65,  +0.36
  3,     UK001L,       0,  0.120836, 2459436.523725108244, 139.64722,  73.38880,                2.20543,  35.34681,         2.21265,       35.33608,    139.64722,     +73.38880,     139.63033,      +73.37761,  3229815.10, -2175701.49,  5166794.36,      53.176023,       -1.223025,  105490.59,  179403.55,    7327.16,             7420.75,   -92.56,  60256.12,           60892.95,     26.70,     27.51,          44.08,  +1.23,  -0.04
  4,     UK001L,       0,  0.161164, 2459436.523725575302, 141.19773,  73.14141,                1.68252,  35.06759,         1.66620,       35.09159,    141.19773,     +73.14141,     141.23925,      +73.16619,  3228865.47, -2176772.14,  5164670.35,      53.166106,       -1.244065,  103676.65,  177383.33,    9888.32,             9981.91,   -54.15,  63508.17,           61429.63,    -59.15,    -61.09,          98.88,  +0.79,  -0.45
  5,     UK001L,       0,  0.201440, 2459436.523726041429, 142.65289,  72.94361,                1.17818,  34.84764,         1.16643,       34.86475,    142.65289,     +72.94361,     142.68405,      +72.96112,  3228011.32, -2177735.14,  5162759.90,      53.157178,       -1.263008,  102045.47,  175578.40,   12191.96,            12285.55,  -270.00,  57196.36,           60978.31,    -41.88,    -43.23,          70.71,  +0.48,  -0.74
  6,     UK001L,       0,  0.241784, 2459436.523726508487, 144.37844,  72.67953,                0.56847,  34.56745,         0.55741,       34.58341,    144.37844,     +72.67953,     144.40897,      +72.69567,  3226985.81, -2178891.34,  5160466.17,      53.146450,       -1.285720,  100087.65,  173427.27,   14957.76,            15051.35,   -27.95,  68555.35,           61630.12,    -38.71,    -39.95,          66.16,  +0.36,  -0.84
  7,     UK001L,       0,  0.282056, 2459436.523726974614, 145.80385,  72.46860,                0.05368,  34.35174,         0.05597,       34.34845,    145.80385,     +72.46860,     145.79875,      +72.46531,  3226156.42, -2179826.43,  5158611.10,      53.137765,       -1.304122,   98504.58,  171700.51,   17194.62,            17288.21,  -310.34,  55543.87,           61394.67,      7.92,      8.17,          13.67,  +0.43,  -0.74
  8,     UK001L,       0,  0.322404, 2459436.523727441207, 147.39410,  72.17084,              359.46670,  34.05809,       359.46166,       34.06523,    147.39410,     +72.17084,     147.40952,      +72.17790,  3225187.31, -2180919.03,  5156443.54,      53.127608,       -1.325598,   96655.38,  169698.19,   19808.30,            19901.89,  -220.66,  64778.39,           61510.68,    -17.05,    -17.58,          29.77,  +0.24,  -0.91
  9,     UK001L,       0,  0.362744, 2459436.523727908265, 148.83062,  71.86853,              358.92237,  33.76835,       358.90338,       33.79499,    148.83062,     +71.86853,     148.88608,      +71.89455,  3224292.04, -2181928.39,  5154441.12,      53.118217,       -1.345452,   94947.49,  167863.55,   22222.84,            22316.43,  -329.62,  59854.70,           61479.29,    -63.11,    -65.15,         111.45,  +0.62,  -0.50
 10,     UK001L,       0,  0.402936, 2459436.523728373460, 149.93027,  71.70665,              358.50107,  33.62188,       358.51354,       33.60446,    149.93027,     +71.70665,     149.89608,      +71.68978,  3223677.25, -2182621.54,  5153066.03,      53.111763,       -1.359140,   93774.78,  166612.34,   23880.93,            23974.52, -1185.76,  41254.35,           60545.55,     41.09,     42.30,          73.01,  +3.20,  +2.09
  0,     UK001Z,       1,  0.101537, 2459436.523724885192, 104.22370,  52.83928,               24.30083,  19.06564,        24.21753,       19.12295,    104.22370,     +52.83928,     104.30112,      +52.92485,  3230008.94, -2175482.96,  5167227.89,      53.178046,       -1.218684,  105861.00,  303530.70,       0.00,             6897.99,   591.95,      0.00,           60071.87,     -3.34,   -515.82,         350.53,  +6.05,  +3.64
  1,     UK001Z,       1,  0.141629, 2459436.523725348990, 104.45001,  52.79802,               24.18884,  18.96973,        24.12868,       19.01116,    104.45001,     +52.79802,     104.50641,      +52.85979,  3229491.88, -2176065.91,  5166071.40,      53.172649,       -1.230216,  104873.06,  302340.66,    1394.51,             8292.50,  -521.53,  34782.68,           60071.87,     -2.77,   -371.34,         253.34,  +3.27,  +0.87
  2,     UK001Z,       1,  0.181861, 2459436.523725814652, 104.85292,  52.61460,               24.03787,  18.69987,        23.93864,       18.76801,    104.85292,     +52.61460,     104.94656,      +52.71609,  3228383.51, -2177315.52,  5163592.36,      53.161069,       -1.254745,  102756.22,  299801.16,    4383.76,            11281.76,   -49.01,  74300.48,           60071.87,     -3.67,   -607.34,         417.86,  +2.51,  +0.13
  3,     UK001Z,       1,  0.222049, 2459436.523726279847, 105.26833,  52.50486,               23.84497,  18.49397,        23.76680,       18.54769,    105.26833,     +52.50486,     105.34295,      +52.58468,  3227395.74, -2178429.17,  5161383.05,      53.150740,       -1.276626,  100870.23,  297544.62,    7047.77,            13945.76,   101.00,  66288.61,           60071.87,     -3.29,   -475.40,         329.56,  +1.98,  -0.39
  4,     UK001Z,       1,  0.262217, 2459436.523726744577, 105.59986,  52.38959,               23.70215,  18.30489,        23.62096,       18.36064,    105.59986,     +52.38959,     105.67797,      +52.47231,  3226569.02, -2179361.25,  5159533.95,      53.142086,       -1.294968,   99292.07,  295660.54,    9277.44,            16175.44,  -182.06,  55508.71,           60255.23,     -3.38,   -490.85,         342.44,  +1.97,  -0.38
  5,     UK001Z,       1,  0.302381, 2459436.523727209773, 105.94012,  52.27850,               23.55130,  18.11771,        23.47357,       18.17108,    105.94012,     +52.27850,     106.01554,      +52.35754,  3225742.26, -2180293.36,  5157684.77,      53.133425,       -1.313313,   97714.21,  293781.32,   11507.20,            18405.19,  -464.79,  55516.33,           59630.88,     -3.32,   -467.21,         328.04,  +1.84,  -0.50
  6,     UK001Z,       1,  0.342589, 2459436.523727674969, 106.34434,  52.13438,               23.37585,  17.88471,        23.29504,       17.94014,    106.34434,     +52.13438,     106.42343,      +52.21634,  3224750.08, -2181411.98,  5155465.61,      53.123023,       -1.335296,   95821.24,  291533.68,   14183.09,            21081.08,  -304.14,  66551.13,           60149.93,     -3.41,   -482.30,         341.24,  +1.70,  -0.62
  7,     UK001Z,       1,  0.382781, 2459436.523728140164, 106.68757,  51.98209,               23.23826,  17.65985,        23.13386,       17.73133,    106.68757,     +51.98209,     106.79015,      +52.08765,  3223866.35, -2182408.33,  5153489.00,      53.113748,       -1.354897,   94135.57,  289537.44,   16566.51,            23464.50,  -434.97,  59300.74,           60295.36,     -3.89,   -618.94,         440.94,  +2.67,  +0.36
  0,     UK002F,       1, -0.812995, 2459436.523714300245, 134.62849,  73.91413,                3.85712,  36.03272,         3.86973,       36.01339,    134.62849,     +73.91413,     134.59919,      +73.89349,  3232633.13, -2172524.35,  5173097.33,      53.205397,       -1.157199,  110879.48,  185492.79,       0.00,              179.44, 51082.60,     -0.00,           60108.28,     49.21,     50.82,          78.66,  +3.39,  +2.05
  1,     UK002F,       1, -0.773019, 2459436.523714763112, 136.15330,  73.80356,                3.35772,  35.86401,         3.39304,       35.81028,    136.15330,     +73.80356,     136.07350,      +73.74657,  3231761.36, -2173507.21,  5171147.48,      53.196319,       -1.176521,  109213.21,  183599.83,    2351.15,             2171.71, 50574.15,  58814.12,           60108.28,    135.88,    139.99,         219.17,  +2.48,  +1.16
  2,     UK002F,       1, -0.732991, 2459436.523715225980, 137.69867,  73.61213,                2.85555,  35.62223,         2.87854,       35.58763,    137.69867,     +73.61213,     137.64323,      +73.57569,  3230834.75, -2174551.91,  5169074.96,      53.186661,       -1.197049,  107442.56,  181599.72,    4850.22,             4670.78, 50569.23,  62432.93,           60108.28,     86.77,     89.50,         141.58,  +1.28,  -0.02
  3,     UK002F,       1, -0.692979, 2459436.523715689313, 139.16389,  73.43527,                2.36911,  35.40501,         2.39036,       35.37332,    139.16389,     +73.43527,     139.11052,      +73.40215,  3229969.82, -2175527.06,  5167140.41,      53.177638,       -1.216224,  105790.20,  179744.15,    7182.92,             7003.49, 50398.96,  58300.14,           60108.28,     78.87,     81.35,         130.03,  +1.64,  +0.37
  0,     UK002Z,       0,  0.013024, 2459436.523723854218, 297.58111,  30.91099,              234.76654,  59.07385,       234.72957,       59.07443,    297.58111,     +30.91099,     297.59981,      +30.90072,  3232145.37, -2173074.27,  5172006.37,      53.200319,       -1.171365,  109943.89,  127741.74,       0.00,             1136.05,   367.02,      0.00,           59618.76,    -33.15,     26.41,          68.44,  +1.81,  +1.28
  1,     UK002Z,       0,  0.053764, 2459436.523724325933, 296.95502,  30.05182,              234.69399,  58.06001,       234.67737,       58.06027,    296.95502,     +30.05182,     296.96382,      +30.04711,  3231284.84, -2174044.46,  5170081.65,      53.191353,       -1.190444,  108299.01,  127173.38,    2320.85,             3456.90,   139.35,  56967.30,           59618.76,    -15.27,     12.17,          31.66,  +1.06,  +0.54
  2,     UK002Z,       0,  0.094552, 2459436.523724798113, 296.31959,  29.12073,              234.58198,  56.97897,       234.62453,       56.97831,    296.31959,     +29.12073,     296.29747,      +29.13304,  3230374.71, -2175070.57,  5168046.00,      53.181863,       -1.210615,  106559.77,  126615.75,    4775.45,             5911.50,    42.43,  60179.64,           59618.76,     40.07,    -31.97,          83.51,  +0.78,  +0.27
  3,     UK002Z,       0,  0.135384, 2459436.523725270759, 295.63255,  28.18033,              234.55286,  55.86202,       234.57300,       55.86170,    295.63255,     +28.18033,     295.62220,      +28.18628,  3229443.38, -2176120.59,  5165962.92,      53.172142,       -1.231253,  104780.49,  126092.20,    7287.26,             8423.30,    -0.04,  61515.50,           59618.76,     19.46,    -15.52,          40.72,  +0.37,  -0.13
  4,     UK002Z,       0,  0.176264, 2459436.523725743871, 294.93555,  27.17840,              234.49895,  54.68563,       234.52158,       54.68528,    294.93555,     +27.17840,     294.92372,      +27.18522,  3228469.94, -2177218.08,  5163785.68,      53.161973,       -1.252819,  102921.29,  125596.39,    9912.60,            11048.65,    68.03,  64220.78,           60749.76,     22.44,    -17.89,          47.12,  +0.14,  -0.35
  5,     UK002Z,       0,  0.217052, 2459436.523726216052, 294.31959,  26.29382,              234.47038,  53.64410,       234.47915,       53.64396,    294.31959,     +26.29382,     294.31553,      +26.29651,  3227614.70, -2178182.31,  5161872.79,      53.153030,       -1.271789,  101288.21,  125205.43,   12219.18,            13355.23,  -176.92,  56550.43,           60472.76,      8.88,     -7.08,          18.71,  -0.13,  -0.62
  6,     UK002Z,       0,  0.257928, 2459436.523726689164, 293.65950,  25.28895,              234.40683,  52.47725,       234.43342,       52.47683,    293.65950,     +25.28895,     293.64519,      +25.29726,  3226661.78, -2179256.66,  5159741.43,      53.143057,       -1.292909,   99469.12,  124818.27,   14789.20,            15925.25,  -163.92,  62873.69,           60631.52,     27.60,    -22.00,          58.32,  -0.21,  -0.69
  7,     UK002Z,       0,  0.298732, 2459436.523727161344, 293.06561,  24.37581,              234.35839,  51.41733,       234.39444,       51.41676,    293.06561,     +24.37581,     293.04560,      +24.38725,  3225801.31, -2180226.79,  5157816.84,      53.134044,       -1.311997,   97826.90,  124513.96,   17109.90,            18245.95,  -395.75,  56874.13,           60384.63,     38.21,    -30.47,          80.95,  -0.22,  -0.70
  8,     UK002Z,       0,  0.339616, 2459436.523727634456, 292.41156,  23.38624,              234.33499,  50.26118,       234.35352,       50.26089,    292.41156,     +23.38624,     292.40183,      +23.39222,  3224867.27, -2181279.86,  5155727.71,      53.124252,       -1.332705,   96044.76,  124231.66,   19629.00,            20765.05,  -434.18,  61615.77,           60351.63,     20.10,    -16.02,          42.67,  -0.19,  -0.66
  9,     UK002Z,       0,  0.380376, 2459436.523728106171, 291.85821,  22.54226,              234.32150,  49.27538,       234.32092,       49.27539,    291.85821,     +22.54226,     291.86016,      +22.54207,  3224074.37, -2182173.80,  5153954.27,      53.115932,       -1.350310,   94532.23,  124032.71,   21767.43,            22903.48,  -845.52,  52463.95,           59905.34,     -0.65,      0.52,           1.38,  +0.40,  -0.07

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.