Orbital Analysis for matched events on 20211103_010900.394_UK

Back to daily index
Summary for Event
-----------------
shower ID 388 CTA
Lg 66.48° Bg 4.62° Vg 42.41km/s
mass 0.02429g, abs. mag -0.0
best visual mag 0.4
Path Details
------------
start -1.45° 53.25° 92.39km
end   -1.46° 53.29° 83.82km

Orbit Details
-------------
Semimajor axis 5.38A.U., eccentricity 0.98, inclination 16.51°, Period 12.47Y, LA Sun 220.53°, last Perihelion 2009-06-15

Full details below
Click here to download a zip of the raw and processed data.

Detailed report below graphs

Click on an image to see a larger view


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

Uncertainties type:
 Purely geometric uncertainties

Reference JD: 2459521.547921230551
Time: 2021-11-03 01:09:00.394320 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001L and UK002Z
 Convergence angle = 77.86911 deg
 R.A. =  59.15493  Dec = +27.30598 deg
Intersection 2 - Stations: UK001L and UK0035
 Convergence angle = 64.62844 deg
 R.A. =  59.08247  Dec = +28.55848 deg
Intersection 3 - Stations: UK001L and UK003B
 Convergence angle = 9.72936 deg
 R.A. =  56.72395  Dec = +55.50287 deg
Intersection 4 - Stations: UK001L and UK003X
 Convergence angle = 21.73957 deg
 R.A. =  60.08945  Dec =  +8.81059 deg
Intersection 5 - Stations: UK002Z and UK0035
 Convergence angle = 13.29350 deg
 R.A. =  64.59395  Dec = +26.41025 deg
Intersection 6 - Stations: UK002Z and UK003B
 Convergence angle = 69.34976 deg
 R.A. =  64.56125  Dec = +26.41630 deg
Intersection 7 - Stations: UK002Z and UK003X
 Convergence angle = 81.47899 deg
 R.A. =  66.66121  Dec = +26.01133 deg
Intersection 8 - Stations: UK0035 and UK003B
 Convergence angle = 56.05626 deg
 R.A. =  64.55981  Dec = +26.42448 deg
Intersection 9 - Stations: UK0035 and UK003X
 Convergence angle = 85.23468 deg
 R.A. =  66.48639  Dec = +25.60296 deg
Intersection 10 - Stations: UK003B and UK003X
 Convergence angle = 29.23271 deg
 R.A. =  65.22102  Dec = +22.55813 deg

Best intersection: Stations UK0035 and UK003X with Qconv = 85.23 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   2037303.22 +/- 84.23 m
 Y =   3301845.21 +/- 132.01 m
 Z =   5161248.09 +/- 115.08 m
 Vx =    17203.62 +/- 388.59 m/s
 Vy =    35285.95 +/- 567.13 m/s
 Vz =    19527.20 +/- 861.38 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+7.562631e+03, +9.845332e+03, +5.406696e+03, +1.783541e+04, -5.465439e+03, +2.090477e+03
+9.845332e+03, +1.854707e+04, +9.648767e+03, +4.127579e+03, -5.749824e+03, -3.578245e+03
+5.406696e+03, +9.648767e+03, +1.407458e+04, +6.086308e+03, -1.912104e+04, +7.158062e+04
+1.783541e+04, +4.127579e+03, +6.086308e+03, +1.165847e+05, -1.633505e+04, +3.185314e+04
-5.465439e+03, -5.749824e+03, -1.912104e+04, -1.633505e+04, +5.218248e+04, -1.687041e+05
+2.090477e+03, -3.578245e+03, +7.158062e+04, +3.185314e+04, -1.687041e+05, +7.302922e+05

Timing offsets (from input data):
    UK001L: -0.001005 s
    UK002Z: 0.000000 s
    UK0035: -0.000915 s
    UK003B: -0.000869 s
    UK003X: -0.001060 s

Reference point on the trajectory:
  Time: 2021-11-03 01:09:00.394320 UTC
  Lon     = +-1.446906 +/- 0.0006 deg
  Lat     = +53.249268 +/- 0.0009 deg
  Lat geo = +53.067235 +/- 0.0009 deg
  Ht      =   92378.91 +/- 163.55 m

  JD dynamic   = 2459521.548721971456 
  LST apparent = 58.3246007278 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  64.00850 +/- 0.4795 deg
  Dec       = +26.44701 +/- 1.0797 deg
  Azimuth   = 168.78884 +/- 0.8268 deg
  Elevation = +62.86498 +/- 1.0886 deg
  Vavg      =  42.65109 +/- 0.1281 km/s
  Vinit     =  43.84489 +/- 0.2404 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  64.41910 +/- 0.4795 deg
  Dec       = +26.43013 +/- 1.0797 deg
  Azimuth   = 167.99592 +/- 0.8268 deg
  Elevation = +62.79881 +/- 1.0886 deg
  Vavg      =  42.67708 +/- 0.1281 km/s
  Vinit     =  43.87088 +/- 0.2404 km/s
Radiant (geocentric, J2000):
  R.A.   =  63.74206 +/- 0.4862 deg
  Dec    = +25.94174 +/- 1.1035 deg
  Vg     =  42.41359 +/- 0.2488 km/s
  Vinf   =  43.84489 +/- 0.2404 km/s
  Zc     =  26.95648 +/- 1.0886 deg
  Zg     =  27.41221 +/- 1.1129 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  66.47597 +/- 0.4251 deg
  Bg     =  +4.62293 +/- 1.1120 deg
  Vh     =  40.29061 +/- 0.3282 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  23.83371 +/- 0.3177 deg
  Bh     =  +4.86730 +/- 1.1715 deg
  Vh_x   = -36.72181 +/- 0.3262 km/s
  Vh_y   = -16.22206 +/- 0.1953 km/s
  Vh_z   =  -3.41859 +/- 0.8198 km/s
Orbit:
  La Sun = 220.534290 +/- 0.0000 deg
  a      =   5.377304 +/- 0.5282 AU
  e      =   0.984947 +/- 0.0017
  i      =  16.507352 +/- 3.9790 deg
  peri   = 328.309008 +/- 0.8920 deg
  node   = 220.532745 +/- 0.0228 deg
  Pi     = 188.841753 +/- 0.9032 deg
  q      =   0.080942 +/- 0.0034 AU
  f      = 211.693616 +/- 0.9032 deg
  M      = 357.536790 +/- 0.6729 deg
  Q      =  10.673666 +/- 1.0536 AU
  n      =   0.079042 +/- 0.0213 deg/day
  T      =  12.469456 +/- 1.6471 years
  Last perihelion JD = 2454998.163823 (2009-06-15 15:55:54.335015) +/- 601.6698 days
  Tj     =   1.304745 +/- 0.1485
Shower association:
  IAU No.  =  388
  IAU code =  CTA

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +2.976549e-06, +3.886726e-06, -1.045163e+00, -1.049436e-06, -1.212942e-03, +3.844341e-03
q   , +3.886726e-06, +1.227606e-05, -1.748524e+00, -4.762513e-05, -3.189835e-03, +7.089293e-04
Tp  , -1.045163e+00, -1.748524e+00, +3.931177e+05, +2.677227e+00, +5.111923e+02, -1.243723e+03
node, -1.049436e-06, -4.762513e-05, +2.677227e+00, +5.535057e-04, +1.035324e-02, +5.958603e-02
peri, -1.212942e-03, -3.189835e-03, +5.111923e+02, +1.035324e-02, +8.531250e-01, -6.422460e-01
i   , +3.844341e-03, +7.089293e-04, -1.243723e+03, +5.958603e-02, -6.422460e-01, +1.711387e+01

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = -0.010723
 a2 = 45.924486

Mean time residuals from time vs. length:
  Station with reference time: UK002Z
  Avg. res. = 1.657e-06 s
  Stddev    = 1.29e-03 s

Begin point on the trajectory:
  Lon =    -1.446896 +/- 0.0006 deg
  Lat =    53.249237 +/- 0.0006 deg
  Ht  = 92385.91 +/- 72.31 m
End point on the trajectory:
  Lon =    -1.460483 +/- 0.0006 deg
  Lat =    53.287443 +/- 0.0008 deg
  Ht  = 83817.69 +/- 68.26 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,   0.000653,  61.011645,    91004.78,    84802.68,          0.024458,     39.62,     65.20,              88.09, 0.9989,    True,    True, {"ff_name": "FF_UK001L_20211103_010858_503_0717568.fits"}
    UK002Z,   False,    -0.382830,    53.537790,   34.00,   0.005157,  47.533619,    92385.91,    84561.08,          0.044955,     93.54,      7.75,              43.52, 0.4742,    True,    True, {"ff_name": "FF_UK002Z_20211103_010856_077_0727296.fits"}
    UK0035,   False,     1.010397,    52.949859,   25.00,   0.979076,  29.316869,    90385.54,    84749.78,          0.045768,    146.29,     42.38,              75.84, 0.9401,    True,    True, {"ff_name": "FF_UK0035_20211103_010851_168_0734720.fits"}
    UK003B,   False,    -1.072290,    52.276980,  129.00,   0.000005,  79.332276,    91379.50,    83817.69,          0.028344,     39.55,     59.10,              80.19, 0.9710,    True,    True, {"ff_name": "FF_UK003B_20211103_010855_476_0720128.fits"}
    UK003X,   False,    -2.362458,    51.684814,  132.00,   0.000000,   0.000000,    90974.17,    84431.98,          0.034374,     68.46,    103.96,              88.68, 0.9995,    True,    True, {"ff_name": "FF_UK003X_20211103_010854_367_0709632.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,       0,  0.034112, 2459521.547921629157, 246.61996,  67.81245,              356.45913,  29.85113,       356.42593,       29.85286,    246.61996,     +67.81245,     246.69641,      +67.81125,  2036697.35,  3300602.52,  5160560.39,      53.255388,       -1.449073,   91004.78,  178925.17,       0.00,             1544.12,    27.96,      0.00,           43864.00,    -76.97,    -46.77,         103.83,  +2.60,  +1.34
  1,     UK001L,       0,  0.074580, 2459521.547922097612, 246.58280,  67.27007,              356.41272,  29.31007,       356.38449,       29.31154,    246.58280,     +67.27007,     246.64689,      +67.26906,  2036031.61,  3299237.04,  5159804.74,      53.262116,       -1.451466,   89494.94,  178807.19,    1696.69,             3240.80,   -49.67,  41926.63,           43864.00,    -65.78,    -39.97,          88.79,  +1.42,  +0.16
  2,     UK001L,       0,  0.115120, 2459521.547922566999, 246.54517,  66.64289,              356.35818,  28.68453,       356.33774,       28.68559,    246.54517,     +66.64289,     246.59092,      +66.64217,  2035262.81,  3297660.17,  5158932.10,      53.269888,       -1.454206,   87751.47,  178690.82,    3656.04,             5200.16,   132.21,  48331.39,           43864.00,    -47.87,    -29.09,          64.67,  +1.03,  -0.23
  3,     UK001L,       0,  0.155564, 2459521.547923034988, 246.48765,  66.12707,              356.32660,  28.16894,       356.29897,       28.17038,    246.48765,     +66.12707,     246.54854,      +66.12611,  2034630.74,  3296363.76,  5158214.67,      53.276282,       -1.456491,   86318.16,  178611.31,    5266.91,             6811.03,   -30.18,  39829.60,           43864.00,    -65.00,    -39.50,          87.83,  +1.02,  -0.24
  4,     UK001L,       0,  0.196032, 2459521.547923503444, 246.44340,  65.58098,              356.28692,  27.62368,       356.25857,       27.62515,    246.44340,     +65.58098,     246.50503,      +65.58001,  2033962.41,  3294992.96,  5157456.07,      53.283045,       -1.458898,   84802.68,  178542.98,    6970.21,             8514.32,  -101.20,  42089.96,           43255.38,    -66.99,    -40.71,          90.56,  +2.02,  +0.76
  0,     UK002Z,       0,  0.000000, 2459521.547921230551,  17.52698,  26.87143,              245.94809,  49.31679,       246.02457,       49.36189,     17.52698,     +26.87143,      17.51343,      +26.93755,  2037306.30,  3301851.54,  5161251.60,      53.249237,       -1.446896,   92385.91,  121073.73,       0.00,                7.86,   -12.67,      0.00,           43855.12,     11.71,   -141.54,         241.95,  +2.71,  +2.29
  1,     UK002Z,       0,  0.040444, 2459521.547921698540,  16.89556,  26.78272,              246.54784,  48.90301,       246.60657,       48.93741,     16.89556,     +26.78272,      16.88505,      +26.83353,  2036603.34,  3300409.71,  5160453.69,      53.256338,       -1.449412,   90791.58,  119740.40,    1791.55,             1783.69,   -10.11,  44297.11,           43855.12,      8.95,   -107.66,         186.09,  +1.63,  +1.24
  2,     UK002Z,       0,  0.080896, 2459521.547922166996,  16.27584,  26.66320,              247.10042,  48.46987,       247.17467,       48.51307,     16.27584,     +26.66320,      16.26229,      +26.72749,  2035920.60,  3299009.36,  5159678.74,      53.263238,       -1.451862,   89243.20,  118457.21,    3531.57,             3523.71,   -43.70,  43014.45,           43855.12,     11.17,   -134.91,         235.71,  +1.00,  +0.63
  3,     UK002Z,       0,  0.121352, 2459521.547922634985,  15.60890,  26.59058,              247.74042,  48.04658,       247.76552,       48.06110,     15.60890,     +26.59058,      15.60460,      +26.61235,  2035213.67,  3297559.39,  5158876.33,      53.270385,       -1.454395,   87640.04,  117140.74,    5333.24,             5325.38,   -15.82,  44534.04,           43855.12,      3.79,    -45.21,          79.89,  +0.70,  +0.36
  4,     UK002Z,       0,  0.161852, 2459521.547923103906,  14.90661,  26.48067,              248.37645,  47.57287,       248.38318,       47.57674,     14.90661,     +26.48067,      14.90596,      +26.48651,  2034477.95,  3296050.36,  5158041.23,      53.277828,       -1.457027,   85971.68,  115784.27,    7208.31,             7200.44,    83.52,  46297.92,           44384.15,      1.01,    -12.01,          21.47,  +0.66,  +0.34
  5,     UK002Z,       0,  0.202280, 2459521.547923571896,  14.29963,  26.38559,              248.92051,  47.16217,       248.90810,       47.15508,     14.29963,     +26.38559,      14.30297,      +26.37480,  2033855.86,  3294774.42,  5157335.13,      53.284124,       -1.459280,   84561.08,  114649.82,    8793.74,             8785.88,  -103.60,  39216.21,           43797.52,     -1.86,     21.98,          39.68,  +1.17,  +0.87
  6,     UK002Z,       1,  0.242660, 2459521.547924038954,  13.77594,  26.29196,              249.37536,  46.79784,       249.35668,       46.78722,     13.77594,     +26.29196,      13.78079,      +26.27570,  2033326.56,  3293688.78,  5156734.34,      53.289483,       -1.461223,   83360.91,  113694.12,   10142.71,            10134.85,  -525.09,  33406.86,           42477.08,     -2.78,     32.86,          59.84,  +4.86,  +4.58
  0,     UK0035,       0,  0.042322, 2459521.547921724152, 338.66286,  28.96315,              282.74449,  27.30732,       282.74343,       27.30686,    338.66286,     +28.96315,     338.66348,      +28.96217,  2036424.31,  3300042.49,  5160250.48,      53.258147,       -1.450019,   90385.54,  192079.57,       0.00,             2239.98,   363.85,      0.00,           39388.71,     -0.98,      3.38,           3.78,  +4.42,  +3.00
  1,     UK0035,       0,  0.082542, 2459521.547922189813, 338.19598,  28.83798,              282.99066,  26.94027,       282.95263,       26.92370,    338.19598,     +28.83798,     338.21237,      +28.80296,  2035843.53,  3298851.28,  5159591.26,      53.264017,       -1.452128,   89068.41,  191681.33,    1480.16,             3720.14,    80.57,  36801.56,           39388.71,    -35.06,    121.29,         135.86,  +2.61,  +1.20
  2,     UK0035,       0,  0.122834, 2459521.547922655940, 337.68974,  28.63588,              283.20847,  26.49303,       283.19036,       26.48514,    337.68974,     +28.63588,     337.69799,      +28.61918,  2035181.92,  3297494.27,  5158840.29,      53.270706,       -1.454509,   87568.04,  191239.26,    3166.32,             5406.30,     0.13,  41848.50,           39388.71,    -16.69,     57.78,          64.87,  +1.70,  +0.29
  3,     UK0035,       0,  0.163090, 2459521.547923122067, 337.20991,  28.47198,              283.43650,  26.08966,       283.40925,       26.07781,    337.20991,     +28.47198,     337.22235,      +28.44683,  2034570.80,  3296240.81,  5158146.63,      53.276888,       -1.456723,   86182.22,  190844.01,    4723.82,             6963.80,  -207.39,  38689.88,           39388.71,    -25.14,     87.03,          97.90,  +1.29,  -0.11
  4,     UK0035,       0,  0.203318, 2459521.547923587263, 336.69049,  28.34875,              283.72417,  25.69351,       283.63487,       25.65470,    336.69049,     +28.34875,     336.73031,      +28.26625,  2033939.09,  3294945.12,  5157429.59,      53.283281,       -1.459007,   84749.78,  190447.61,    6333.79,             8573.77,  -361.21,  40021.23,           39527.25,    -82.69,    285.26,         321.67,  +4.52,  +3.12
  0,     UK003B,       0,  0.024146, 2459521.547921512276, 277.22193,  73.57832,              346.98625,  38.56378,       347.00038,       38.56397,    277.22193,     +73.57832,     277.18823,      +73.58387,  2036862.57,  3300941.40,  5160747.93,      53.253719,       -1.448479,   91379.50,  144791.38,       0.00,             1123.03,    43.80,      0.00,           44305.35,     23.21,     15.52,          39.77,  +2.83,  +2.03
  1,     UK003B,       0,  0.064694, 2459521.547921981663, 276.13275,  73.00311,              346.98510,  37.90888,       347.00886,       37.90919,    276.13275,     +73.00311,     276.07693,      +73.01223,  2036199.91,  3299582.25,  5159995.78,      53.260414,       -1.450862,   89876.64,  144439.00,    1688.83,             2811.86,   -45.19,  41650.07,           44305.35,     39.30,     26.29,          67.52,  +1.28,  +0.48
  2,     UK003B,       0,  0.105266, 2459521.547922451049, 275.08263,  72.39468,              346.97834,  37.22502,       347.01779,       37.22555,    275.08263,     +72.39468,     274.99138,      +72.40945,  2035511.36,  3298169.97,  5159214.22,      53.267375,       -1.453333,   88315.12,  144092.85,    3443.66,             4566.70,   -69.23,  43252.42,           44305.35,     65.66,     43.93,         113.08,  +0.76,  -0.03
  3,     UK003B,       0,  0.145918, 2459521.547922921833, 273.95461,  71.70808,              346.98291,  36.45548,       347.02829,       36.45609,    273.95461,     +71.70808,     273.85151,      +71.72463,  2034740.11,  3296588.07,  5158338.80,      53.275175,       -1.456084,   86566.16,  143729.35,    5409.27,             6532.30,   113.99,  48351.96,           44305.35,     76.11,     50.93,         131.42,  +0.41,  -0.38
  4,     UK003B,       0,  0.186466, 2459521.547923391219, 273.07296,  71.12700,              346.98536,  35.81006,       347.03605,       35.81074,    273.07296,     +71.12700,     272.95957,      +71.14510,  2034096.26,  3295267.50,  5157608.00,      53.281690,       -1.458409,   85106.19,  143446.17,    7050.16,             8173.19,   -22.94,  40467.88,           43908.69,     85.55,     57.25,         148.01,  +0.83,  +0.05
  5,     UK003B,       0,  0.226954, 2459521.547923859674, 272.26301,  70.62027,              347.01973,  35.23874,       347.04220,       35.23904,    272.26301,     +70.62027,     272.21399,      +70.62814,  2033528.02,  3294101.98,  5156963.00,      53.287443,       -1.460483,   83817.69,  143211.64,    8498.39,             9621.42,  -349.90,  35769.34,           42635.54,     38.12,     25.50,          66.06,  +3.45,  +2.67
  0,     UK003X,       0,  0.038887, 2459521.547921685502, 201.27325,  59.65282,               19.20781,  25.09523,        19.18817,       25.09955,    201.27325,     +59.65282,     201.30217,      +59.66396,  2036683.85,  3300574.84,  5160545.08,      53.255524,       -1.449138,   90974.17,  207705.26,       0.00,             1578.51,  -147.03,      0.00,           44636.66,    -55.39,    -36.51,          65.89,  +2.70,  +1.11
  1,     UK003X,       0,  0.079327, 2459521.547922153492, 201.94449,  59.22575,               19.05114,  24.56736,        19.04309,       24.56913,    201.94449,     +59.22575,     201.95660,      +59.23027,  2035906.13,  3298979.67,  5159662.31,      53.263384,       -1.451906,   89210.37,  207607.98,    1982.10,             3560.60,    61.98,  49013.23,           44636.66,    -22.79,    -15.02,          27.11,  +2.31,  +0.72
  2,     UK003X,       0,  0.119711, 2459521.547922621015, 202.57712,  58.86225,               18.87882,  24.10544,        18.91479,       24.09754,    202.57712,     +58.86225,     202.52505,      +58.84222,  2035215.33,  3297562.78,  5158878.21,      53.270369,       -1.454385,   87643.79,  207537.04,    3742.66,             5321.17,    51.91,  43595.62,           44636.66,    102.16,     67.28,         121.58,  +1.53,  -0.06
  3,     UK003X,       0,  0.160083, 2459521.547923088074, 203.11989,  58.49350,               18.74910,  23.65653,        18.79295,       23.64690,    203.11989,     +58.49350,     203.05657,      +58.46927,  2034555.73,  3296209.89,  5158129.52,      53.277041,       -1.456761,   86148.04,  207483.08,    5423.71,             7002.22,   -37.14,  41639.00,           44636.66,    124.92,     82.26,         148.70,  +1.73,  +0.15
  4,     UK003X,       0,  0.200515, 2459521.547923556063, 203.73095,  58.06821,               18.59993,  23.14142,        18.65459,       23.12942,    203.73095,     +58.06821,     203.65221,      +58.03828,  2033798.92,  3294657.63,  5157270.50,      53.284700,       -1.459465,   84431.98,  207438.46,    7352.49,             8930.99,   118.90,  47704.22,           44916.32,    156.24,    102.87,         186.01,  +2.21,  +0.63

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.