Orbital Analysis for matched events on 20210810_213338.344_UK

Summary for Event
-----------------
shower ID 7 PER
Lg 61.30° Bg 38.47° Vg 61.72km/s
mass 0.07605g, abs. mag -1.8
Path Details
------------
start 1.47° 52.94° 107.87km
end   1.34° 52.82° 97.87km

Orbit Details
-------------
Semimajor axis -5.92A.U., eccentricity 1.16, inclination 114.70°, Period 1000000000.00Y, LA Sun 138.17°, 

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: 2459437.398360463325
Time: 2021-08-10 21:33:38.344031 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK000Z and UK002C
 Convergence angle = 29.65025 deg
 R.A. =  51.78637  Dec = +59.41178 deg
Intersection 2 - Stations: UK000Z and UK002F
 Convergence angle = 16.57596 deg
 R.A. =  45.49594  Dec = +58.15528 deg
Intersection 3 - Stations: UK000Z and UK002K
 Convergence angle = 19.53291 deg
 R.A. =  44.04679  Dec = +57.80733 deg
Intersection 4 - Stations: UK002C and UK002F
 Convergence angle = 13.14051 deg
 R.A. =  58.15014  Dec = +62.52871 deg
Intersection 5 - Stations: UK002C and UK002K
 Convergence angle = 49.14732 deg
 R.A. =  49.37116  Dec = +57.96513 deg
Intersection 6 - Stations: UK002F and UK002K
 Convergence angle = 36.10787 deg
 R.A. =  44.81048  Dec = +57.84378 deg

Best intersection: Stations UK002C and UK002K with Qconv = 49.15 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =    978392.84 +/- 142.64 m
 Y =  -3792678.58 +/- 116.22 m
 Z =   5152965.08 +/- 182.17 m
 Vx =    23324.46 +/- 907.93 m/s
 Vy =    23595.30 +/- 768.32 m/s
 Vz =    53210.59 +/- 849.88 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00

Timing offsets (from input data):
    UK000Z: -0.001909 s
    UK002C: -0.000298 s
    UK002F: 0.000000 s
    UK002K: -0.002466 s

Reference point on the trajectory:
  Time: 2021-08-10 21:33:38.344031 UTC
  Lon     = ++1.476744 +/- 0.0020 deg
  Lat     = +52.943159 +/- 0.0016 deg
  Lat geo = +52.761007 +/- 0.0016 deg
  Ht      =  108008.96 +/- 128.17 m

  JD dynamic   = 2459437.399161204230 
  LST apparent = 284.4651536192 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  45.33073 +/- 1.2107 deg
  Dec       = +58.05566 +/- 0.1308 deg
  Azimuth   =  31.95899 +/- 0.6691 deg
  Elevation = +30.90485 +/- 0.3097 deg
  Vavg      =  59.75474 +/- 0.7313 km/s
  Vinit     =  62.70674 +/- 0.9125 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  45.07954 +/- 1.2107 deg
  Dec       = +57.86571 +/- 0.1308 deg
  Azimuth   =  32.21632 +/- 0.6691 deg
  Elevation = +30.83379 +/- 0.3097 deg
  Vavg      =  59.88498 +/- 0.7313 km/s
  Vinit     =  62.83697 +/- 0.9125 km/s
Radiant (geocentric, J2000):
  R.A.   =  45.50360 +/- 1.2203 deg
  Dec    = +57.55730 +/- 0.1175 deg
  Vg     =  61.71688 +/- 0.9274 km/s
  Vinf   =  62.70674 +/- 0.9125 km/s
  Zc     =  59.24974 +/- 0.3107 deg
  Zg     =  59.76814 +/- 0.3287 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  61.30024 +/- 0.8194 deg
  Bg     = +38.46954 +/- 0.1703 deg
  Vh     =  43.59260 +/- 0.7926 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  79.33646 +/- 2.3891 deg
  Bh     = +61.73493 +/- 0.1529 deg
  Vh_x   =  -3.81987 +/- 0.8996 km/s
  Vh_y   = -20.28684 +/- 0.2592 km/s
  Vh_z   = -38.39489 +/- 0.6983 km/s
Orbit:
  La Sun = 138.171118 +/- -0.0000 deg
  a      =  -5.919936 +/- 47.1916 AU
  e      =   1.161651 +/- 0.0748
  i      = 114.704920 +/- 0.5847 deg
  peri   = 153.637441 +/- 2.7299 deg
  node   = 138.169175 +/- 0.0000 deg
  Pi     = 291.806616 +/- 2.7299 deg
  q      =   0.956965 +/- 0.0099 AU
  f      =  26.358292 +/- 2.7300 deg
  M      =        nan +/- nan deg
  Q      = -12.796836 +/- 94.3761 AU
  n      =   0.068427 +/- 0.0407 deg/day
  T      = 1000000000.000000 +/- 0.0000 years
  Last perihelion JD = NaN 
  Tj     =  -1.406108 +/- 0.4249
Shower association:
  IAU No.  =    7
  IAU code =  PER

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
q   , -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
Tp  , -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
node, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
peri, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
i   , -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.174148
 a2 = 25.437885

Mean time residuals from time vs. length:
  Station with reference time: UK002F
  Avg. res. = 5.254e-06 s
  Stddev    = 2.29e-03 s

Begin point on the trajectory:
  Lon =     1.474910 +/- 0.0029 deg
  Lat =    52.941383 +/- 0.0008 deg
  Ht  = 107867.15 +/- 187.99 m
End point on the trajectory:
  Lon =     1.344127 +/- 0.0023 deg
  Lat =    52.815603 +/- 0.0006 deg
  Ht  = 97867.39 +/- 143.44 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
    UK000Z,   False,    -1.740490,    53.069201,  230.00,   0.042503,  31.025035,   106943.80,    98442.90,          0.018562,     77.00,      4.21,              56.00, 0.6873,    True,    True, {"ff_name": "FF_UK000Z_20210810_213330_733_0104192.fits"}
    UK002C,   False,    -1.801980,    51.351940,  130.00,   0.242096,  24.153535,   104577.05,    98232.93,          0.021204,     87.05,     65.61,              21.77, 0.1375,    True,    True, {"ff_name": "FF_UK002C_20210810_213329_045_0115200.fits"}
    UK002F,   False,    -1.306160,    51.883100,   80.00,   0.055880,  27.329421,   107867.15,    97867.39,          0.021199,     84.62,     30.31,              25.38, 0.1837,    True,    True, {"ff_name": "FF_UK002F_20210810_213331_758_0108544.fits"}
    UK002K,   False,    -0.382860,    53.537770,   34.00,   0.000000,  74.997486,   105502.09,    98412.87,          0.006531,     19.10,      5.57,              71.09, 0.8950,    True,    True, {"ff_name": "FF_UK002K_20210810_213330_699_0109056.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,     UK000Z,       0,  0.027050, 2459437.398360974155, 353.36351,  18.24796,               92.84988,  25.18512,        92.84534,       25.17395,    353.36351,     +18.24796,     353.37448,      +18.24189,   977621.29, -3793459.08,  5151204.92,      52.929813,       +1.462781,  106943.80,  242170.22,       0.00,             2074.28,   434.08,      0.00,           61364.97,      2.77,     50.26,          42.88,  +3.37,  +1.45
  1,     UK000Z,       0,  0.067138, 2459437.398361438420, 353.12135,  17.87080,               93.30997,  25.03784,        93.30346,       25.02195,    353.12135,     +17.87080,     353.13704,      +17.86218,   976776.29, -3794313.89,  5149277.21,      52.915190,       +1.447528,  105777.79,  240860.28,    2271.74,             4346.02,   192.03,  56668.77,           61364.97,      3.91,     71.17,          61.04,  +1.74,  -0.17
  2,     UK000Z,       0,  0.107218, 2459437.398361902218, 352.88750,  17.51704,               93.74658,  24.90321,        93.73574,       24.87697,    352.88750,     +17.51704,     352.91333,      +17.50281,   975985.38, -3795113.99,  5147472.90,      52.901497,       +1.433245,  104686.94,  239646.66,    4398.05,             6472.33,  -194.94,  53051.82,           61364.97,      6.39,    117.04,         100.89,  +1.79,  -0.11
  3,     UK000Z,       0,  0.187446, 2459437.398362830747, 352.30721,  16.58058,               94.86853,  24.52113,        94.85661,       24.49290,    352.30721,     +16.58058,     352.33530,      +16.56530,   973962.02, -3797160.84,  5142856.96,      52.866436,       +1.396817,  101898.55,  236606.59,    9837.77,            11912.04,   213.93,  67803.14,           61364.97,      6.80,    124.73,         108.89,  +3.20,  +1.33
  4,     UK000Z,       0,  0.227570, 2459437.398363295011, 352.08231,  16.15891,               95.34264,  24.32615,        95.34156,       24.32362,    352.08231,     +16.15891,     352.08577,      +16.15754,   973098.61, -3798034.28,  5140887.25,      52.851463,       +1.381256,  100709.68,  235334.28,   12159.00,            14233.28,    19.12,  57851.58,           61488.46,      0.61,     11.14,           9.78,  +1.95,  +0.09
  5,     UK000Z,       0,  0.267670, 2459437.398363759276, 351.84719,  15.75924,               95.80938,  24.15379,        95.81112,       24.15785,    351.84719,     +15.75924,     351.84447,      +15.76144,   972269.18, -3798873.34,  5138995.05,      52.837071,       +1.366306,   99568.15,  234126.88,   14388.89,            16463.17,  -265.53,  55608.28,           60894.11,     -0.98,    -17.80,          15.71,  +1.14,  -0.71
  6,     UK000Z,       0,  0.307750, 2459437.398364223074, 351.58927,  15.37456,               96.28419,  24.00616,        96.27774,       23.99129,    351.58927,     +15.37456,     351.60497,      +15.36654,   971451.18, -3799700.84,  5137128.92,      52.822871,       +1.351564,   98442.90,  232950.86,   16588.05,            18662.33,  -579.66,  54869.16,           60165.88,      3.56,     64.92,          57.57,  +2.02,  +0.18
  0,     UK002C,       1,  0.071521, 2459437.398361266591,  30.96769,  38.95993,               50.73152,  19.06987,        50.73344,       19.07297,     30.96769,     +38.95993,      30.96367,      +38.96123,   976626.76, -3794465.15,  5148936.10,      52.912602,       +1.444921,  105571.53,  303288.01,       0.00,             4748.00,   319.15,      0.00,           62210.91,    -11.47,    -15.19,          12.94,  +5.29,  +2.88
  1,     UK002C,       0,  0.111629, 2459437.398361730855,  30.93461,  38.82836,               50.83937,  18.98283,        50.85392,       19.00626,     30.93461,     +38.82836,      30.90254,      +38.83817,   975905.68, -3795194.61,  5147291.08,      52.900117,       +1.431885,  104577.05,  301473.27,    1938.59,             6686.59,  -257.31,  48334.23,           62210.91,    -86.27,   -114.01,          97.82,  +2.80,  +0.40
  2,     UK002C,       0,  0.151761, 2459437.398362195585,  30.81091,  38.64449,               51.04013,  18.89880,        51.04205,       18.90189,     30.81091,     +38.64449,      30.80725,      +38.64579,   974799.91, -3796313.22,  5144768.47,      52.880960,       +1.411989,  103052.85,  298698.10,    4911.40,             9659.41,   198.96,  74075.87,           62210.91,    -11.26,    -14.92,          12.91,  +1.31,  -1.07
  3,     UK002C,       0,  0.191873, 2459437.398362659849,  30.71871,  38.48979,               51.20145,  18.82247,        51.19717,       18.81557,     30.71871,     +38.48979,      30.72903,      +38.48691,   973900.88, -3797222.69,  5142717.48,      52.865376,       +1.395788,  101814.34,  296443.07,    7328.42,            12076.42,   100.68,  60256.71,           62210.91,     24.92,     33.04,          28.80,  +1.69,  -0.67
  4,     UK002C,       0,  0.231993, 2459437.398363124114,  30.66687,  38.33455,               51.33700,  18.72614,        51.34228,       18.73461,     30.66687,     +38.33455,      30.65612,      +38.33808,   973070.61, -3798062.60,  5140823.38,      52.850977,       +1.380819,  100671.13,  294362.22,    9560.55,            14308.55,  -182.98,  55636.25,           61096.10,    -30.46,    -40.33,          35.41,  +1.62,  -0.72
  5,     UK002C,       0,  0.272097, 2459437.398363588378,  30.52740,  38.18030,               51.52881,  18.67344,        51.50893,       18.64142,     30.52740,     +38.18030,      30.57263,      +38.16693,   972131.38, -3799012.74,  5138680.69,      52.834679,       +1.363912,   99378.57,  292012.20,   12085.63,            16833.63,  -172.69,  62963.37,           61044.23,    113.81,    151.34,         133.76,  +1.48,  -0.85
  6,     UK002C,       0,  0.312221, 2459437.398364052642,  30.47275,  38.02015,               51.66946,  18.57479,        51.65866,       18.55746,     30.47275,     +38.02015,      30.49790,      +38.01294,   971298.49, -3799855.30,  5136780.60,      52.820220,       +1.348906,   98232.93,  289929.80,   14324.82,            19072.82,  -449.55,  55806.69,           60464.44,     61.29,     81.36,          72.47,  +2.52,  +0.21
  0,     UK002F,       0,  0.000000, 2459437.398360463325,  21.56721,  39.27490,               56.99705,  24.58337,        57.00893,       24.61932,     21.56721,     +39.27490,      21.52577,      +39.29441,   978290.14, -3792782.47,  5152730.78,      52.941383,       +1.474910,  107867.15,  249240.32,       0.00,              276.11,   332.10,      0.00,           60544.89,    -55.18,   -153.72,         135.16,  +2.71,  +0.73
  1,     UK002F,       0,  0.040012, 2459437.398360926658,  21.38533,  39.12514,               57.22241,  24.56631,        57.22105,       24.56217,     21.38533,     +39.12514,      21.39026,      +39.12289,   977496.44, -3793585.38,  5150920.11,      52.927653,       +1.460569,  106771.49,  247286.95,    2133.81,             2409.91,   -43.11,  53329.22,           60544.89,      6.27,     17.58,          15.57,  +2.74,  +0.77
  2,     UK002F,       0,  0.080068, 2459437.398361389991,  21.22702,  38.91335,               57.47864,  24.49117,        57.47894,       24.49208,     21.22702,     +38.91335,      21.22631,      +38.91385,   976548.17, -3794544.66,  5148756.80,      52.911241,       +1.443474,  105463.11,  244958.94,    4683.20,             4959.30,    -5.50,  63645.57,           60544.89,     -1.37,     -3.82,           3.42,  +1.83,  -0.12
  3,     UK002F,       0,  0.120108, 2459437.398361853324,  21.03787,  38.71110,               57.74764,  24.43943,        57.74125,       24.42026,     21.03787,     +38.71110,      21.06034,      +38.70074,   975600.69, -3795503.15,  5146595.29,      52.894834,       +1.426398,  104156.55,  242637.40,    7230.46,             7506.56,    30.98,  63617.91,           60544.89,     28.46,     79.90,          72.10,  +1.41,  -0.51
  4,     UK002F,       0,  0.160216, 2459437.398362317588,  20.93110,  38.46108,               57.99933,  24.30935,        58.01161,       24.34567,     20.93110,     +38.46108,      20.89012,      +38.48060,   974641.70, -3796473.27,  5144407.53,      52.878218,       +1.409123,  102834.85,  240292.51,    9808.66,            10084.76,    94.14,  64281.44,           61704.14,    -53.83,   -150.01,         136.81,  +1.26,  -0.64
  5,     UK002F,       0,  0.200220, 2459437.398362780455,  20.71104,  38.28644,               58.26820,  24.29486,        58.26189,       24.27617,     20.71104,     +38.28644,      20.73325,      +38.27639,   973768.81, -3797356.30,  5142416.18,      52.863086,       +1.393390,  101632.45,  238161.66,   12155.38,            12431.49,   -67.66,  58662.27,           61600.97,     27.28,     76.58,          70.41,  +1.17,  -0.71
  6,     UK002F,       0,  0.240288, 2459437.398363244254,  20.55795,  38.06615,               58.52793,  24.21158,        58.52488,       24.20260,     20.55795,     +38.06615,      20.56920,      +38.06134,   972867.31, -3798268.27,  5140359.57,      52.847450,       +1.377152,  100391.28,  235965.64,   14579.03,            14855.13,  -156.55,  60488.27,           61444.84,     13.00,     36.46,          33.83,  +1.24,  -0.62
  7,     UK002F,       0,  0.280364, 2459437.398363708053,  20.41756,  37.83125,               58.79028,  24.11091,        58.79557,       24.12630,     20.41756,     +37.83125,      20.40116,      +37.83948,   971955.55, -3799190.61,  5138279.57,      52.831628,       +1.360736,   99136.67,  233749.42,   17030.23,            17306.34,  -218.38,  61163.95,           61356.36,    -22.17,    -61.97,          58.08,  +1.00,  -0.84
  8,     UK002F,       0,  0.320408, 2459437.398364171851,  20.22071,  37.61350,               59.07657,  24.05303,        59.07451,       24.04707,     20.22071,     +37.61350,      20.22883,      +37.61032,   971032.65, -3800124.23,  5136174.13,      52.815603,       +1.344127,   97867.39,  231511.15,   19511.42,            19787.52,  -248.22,  61961.48,           61355.41,      8.48,     23.77,          22.48,  +1.38,  -0.44
  9,     UK002F,       1,  0.360476, 2459437.398364635650,  20.14149,  37.43815,               59.25601,  23.96458,        59.26575,       23.99262,     20.14149,     +37.43815,      20.11106,      +37.45306,   970407.87, -3800756.26,  5134748.80,      52.804750,       +1.332833,   97008.48,  229995.84,   21191.11,            21467.21, -1081.06,  41921.02,           60294.46,    -39.83,   -111.15,         105.89,  +4.54,  +2.73
  0,     UK002K,       0,  0.071975, 2459437.398361510132, 329.37501,  13.89878,              118.99566,  36.03795,       118.99546,       36.03758,    329.37501,     +13.89878,     329.37573,      +13.89856,   976576.42, -3794516.08,  5148821.25,      52.911731,       +1.443935,  105502.09,  176598.81,       0.00,             4883.35,   426.05,      0.00,           64488.39,     -0.35,      1.20,           1.45,  +1.10,  -0.13
  1,     UK002K,       0,  0.112131, 2459437.398361974861, 329.15600,  13.55724,              119.44314,  35.86276,       119.44782,       35.87090,    329.15600,     +13.55724,     329.14878,      +13.56212,   976090.37, -3795007.78,  5147712.41,      52.903315,       +1.435092,  104831.71,  176166.05,    1306.73,             6190.07,  -785.27,  32541.29,           64488.39,      7.73,    -26.51,          32.33,  +3.74,  +2.51
  2,     UK002K,       0,  0.152475, 2459437.398362441920, 328.59450,  12.74423,              120.54335,  35.46160,       120.53933,       35.45476,    328.59450,     +12.74423,     328.60175,      +12.74013,   974915.00, -3796196.80,  5145031.00,      52.882954,       +1.413953,  103211.43,  175166.75,    4466.67,             9350.01,  -155.17,  78324.93,           64488.39,     -6.50,     22.26,          27.30,  +1.37,  +0.15
  3,     UK002K,       0,  0.192843, 2459437.398362908978, 328.06176,  11.90874,              121.62023,  35.01960,       121.62461,       35.02687,    328.06176,     +11.90874,     328.05566,      +11.91311,   973747.04, -3797378.32,  5142366.53,      52.862709,       +1.392956,  101602.49,  174224.99,    7606.66,            12490.01,   453.47,  77784.19,           64488.39,      6.90,    -23.66,          29.18,  +0.52,  -0.69
  4,     UK002K,       0,  0.233071, 2459437.398363374639, 327.68956,  11.36552,              122.34205,  34.74147,       122.33994,       34.73802,    327.68956,     +11.36552,     327.69393,      +11.36344,   972978.12, -3798156.17,  5140612.37,      52.849372,       +1.379080,  100543.82,  173630.64,    9673.87,            14557.22,    -1.88,  51387.37,           63664.02,     -3.28,     11.25,          13.92,  +0.25,  -0.95
  5,     UK002K,       0,  0.273363, 2459437.398363841232, 327.26350,  10.69424,              123.19410,  34.37661,       123.19791,       34.38275,    327.26350,     +10.69424,     327.25880,      +10.69794,   972054.94, -3799090.07,  5138506.30,      52.833353,       +1.362459,   99273.40,  172948.69,   12155.80,            17039.15,   -46.53,  61598.54,           63133.33,      5.82,    -19.97,          24.80,  +0.05,  -1.14
  6,     UK002K,       0,  0.313555, 2459437.398364306428, 326.96574,  10.24080,              123.77658,  34.13257,       123.77973,       34.13760,    326.96574,     +10.24080,     326.96227,      +10.24384,   971429.36, -3799722.91,  5137079.15,      52.822492,       +1.351145,   98412.87,  172502.94,   13837.65,            18720.99,  -885.00,  41845.28,           60668.87,      4.78,    -16.38,          20.40,  +1.29,  +0.11

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.