Orbital Analysis for matched events on 20210929_213442.690_UK

Summary for Event
-----------------
shower ID -1 spo
Lg 339.58° Bg 0.64° Vg 14.66km/s
mass 0.08406g, abs. mag 1.7
Path Details
------------
start -3.83° 50.87° 92.15km
end   -3.86° 50.95° 85.47km

Orbit Details
-------------
Semimajor axis 3.38A.U., eccentricity 0.75, inclination 0.26°, Period 6.20Y, LA Sun 186.66°, last Perihelion 2015-08-19

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: 2459487.399105212186
Time: 2021-09-29 21:34:42.764402 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK000T and UK0020
 Convergence angle = 34.34235 deg
 R.A. = 341.13756  Dec =  -0.86617 deg

Best intersection: Stations UK000T and UK0020 with Qconv = 34.34 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3497476.85 +/- 48.53 m
 Y =  -2125160.04 +/- 38.80 m
 Z =   4996126.87 +/- 30.83 m
 Vx =    17298.30 +/- 207.84 m/s
 Vy =    -6239.16 +/- 21.40 m/s
 Vz =     -310.16 +/- 77.79 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+2.002770e+03, -1.441919e+03, +9.652394e+02, +5.336657e+03, -3.509067e+03, +2.519493e+03
-1.441919e+03, +1.237449e+03, -7.777967e+02, -4.141207e+03, +3.000932e+03, -1.759811e+03
+9.652394e+02, -7.777967e+02, +7.206632e+02, +2.829768e+03, -1.872060e+03, +1.482023e+03
+5.336657e+03, -4.141207e+03, +2.829768e+03, +2.145031e+04, -1.370858e+04, +8.804090e+03
-3.509067e+03, +3.000932e+03, -1.872060e+03, -1.370858e+04, +9.403747e+03, -5.369866e+03
+2.519493e+03, -1.759811e+03, +1.482023e+03, +8.804090e+03, -5.369866e+03, +4.290945e+03

Timing offsets (from input data):
    UK000T: 0.000000 s
    UK0020: 0.000512 s

Reference point on the trajectory:
  Time: 2021-09-29 21:34:42.764402 UTC
  Lon     = +-3.823584 +/- 0.0002 deg
  Lat     = +50.863653 +/- 0.0003 deg
  Lat geo = +50.677833 +/- 0.0003 deg
  Ht      =   92956.18 +/- 60.30 m

  JD dynamic   = 2459487.399906810373 
  LST apparent = 328.7160204303 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 340.16662 +/- 0.1570 deg
  Dec       =  -0.96630 +/- 0.2531 deg
  Azimuth   = 165.55808 +/- 0.1568 deg
  Elevation = +37.26027 +/- 0.2706 deg
  Vavg      =  17.10861 +/- 0.0927 km/s
  Vinit     =  18.39170 +/- 0.2038 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 341.07494 +/- 0.1570 deg
  Dec       =  -0.96307 +/- 0.2531 deg
  Azimuth   = 164.43273 +/- 0.1568 deg
  Elevation = +37.11503 +/- 0.2706 deg
  Vavg      =  17.17017 +/- 0.0927 km/s
  Vinit     =  18.45326 +/- 0.2038 km/s
Radiant (geocentric, J2000):
  R.A.   = 340.90124 +/- 0.1999 deg
  Dec    =  -7.38787 +/- 0.4585 deg
  Vg     =  14.65675 +/- 0.2559 km/s
  Vinf   =  18.39170 +/- 0.2038 km/s
  Zc     =  52.55979 +/- 0.2707 deg
  Zg     =  58.94805 +/- 0.4813 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 339.58143 +/- 0.0842 deg
  Bg     =  +0.63522 +/- 0.4924 deg
  Vh     =  38.84166 +/- 0.1889 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 297.04895 +/- 0.2543 deg
  Bh     =  +0.24287 +/- 0.1893 deg
  Vh_x   = -17.66314 +/- 0.2382 km/s
  Vh_y   =  34.59278 +/- 0.0913 km/s
  Vh_z   =  -0.16464 +/- 0.1292 km/s
Orbit:
  La Sun = 186.659219 +/- 0.0000 deg
  a      =   3.376444 +/- 0.1876 AU
  e      =   0.745683 +/- 0.0147
  i      =   0.258574 +/- 0.1769 deg
  peri   = 227.926065 +/- 30.6979 deg
  node   = 186.977138 +/- 30.6966 deg
  Pi     =  54.903203 +/- 0.0969 deg
  q      =   0.858686 +/- 0.0018 AU
  f      = 311.755871 +/- 0.0969 deg
  M      = 354.792109 +/- 0.4694 deg
  Q      =   5.894202 +/- 0.3768 AU
  n      =   0.158860 +/- 0.0134 deg/day
  T      =   6.204260 +/- 0.5182 years
  Last perihelion JD = 2457254.037424 (2015-08-19 12:53:53.456893) +/- 189.4527 days
  Tj     =   2.614706 +/- 0.0825
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +1.502647e-04, -1.627381e-05, -1.941937e+00, -3.587399e-03, +3.586290e-03, +2.974871e-05
q   , -1.627381e-05, +2.094689e-06, +2.087754e-01, +4.319107e-04, -4.328296e-04, -3.471085e-06
Tp  , -1.941937e+00, +2.087754e-01, +2.540192e+04, +4.001831e+01, -4.000004e+01, -3.928246e-01
node, -3.587399e-03, +4.319107e-04, +4.001831e+01, +3.290661e-01, -3.291564e-01, -3.437944e-04
peri, +3.586290e-03, -4.328296e-04, -4.000004e+01, -3.291564e-01, +3.292499e-01, +3.443803e-04
i   , +2.974871e-05, -3.471085e-06, -3.928246e-01, -3.437944e-04, +3.443803e-04, +6.978900e-06

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 16.345172
 a2 = 5.263144

Mean time residuals from time vs. length:
  Station with reference time: UK000T
  Avg. res. = 4.652e-06 s
  Stddev    = 2.16e-03 s

Begin point on the trajectory:
  Lon =    -3.827285 +/- 0.0002 deg
  Lat =    50.872743 +/- 0.0002 deg
  Ht  = 92150.36 +/- 45.90 m
End point on the trajectory:
  Lon =    -3.860775 +/- 0.0002 deg
  Lat =    50.948260 +/- 0.0001 deg
  Ht  = 85467.91 +/- 31.19 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
    UK000T,   False,    -3.557111,    51.483925,   37.50,   4.972598,   7.857547,    92146.21,    86783.98,          0.010283,      3.59,     19.96,              26.24, 1.0000,    True,    True, {"ff_name": "FF_UK000T_20210929_213441_598_0277248.fits"}
    UK0020,   False,    -3.515726,    50.691998,   17.00,  13.337187,   5.497910,    92150.36,    85467.91,          0.011558,     10.13,     16.28,              67.60, 1.0000,    True,    True, {"ff_name": "FF_UK0020_20210929_213439_607_0278528.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,     UK000T,       1,  0.000000, 2459487.399105212186, 319.39041,  14.19193,              195.18294,  51.91699,       195.19035,       51.90719,    319.39041,     +14.19193,     319.38406,      +14.18304,  3497504.00, -2125169.83,  4996126.39,      50.863456,       -3.823195,   92973.66,  117571.14,       0.00,               28.87,   275.97,      0.00,           16869.17,     21.84,     -3.92,          38.92,  +6.47,  +6.12
  1,     UK000T,       0,  0.079784, 2459487.399106135592, 319.12917,  14.35257,              195.63242,  52.03205,       195.63650,       52.02657,    319.12917,     +14.35257,     319.12597,      +14.34761,  3496218.48, -2124706.17,  4996149.44,      50.872790,       -3.827327,   92146.21,  116343.37,    1366.78,             1337.91,   117.64,  17131.01,           16869.17,     12.04,     -2.16,          21.68,  +4.16,  +3.83
  2,     UK000T,       0,  0.119680, 2459487.399106597528, 319.01280,  14.43340,              195.83587,  52.09200,       195.84403,       52.08098,    319.01280,     +14.43340,     319.00621,      +14.42344,  3495634.24, -2124495.45,  4996159.91,      50.877033,       -3.829222,   91770.19,  115786.61,    1987.95,             1959.08,     5.06,  15569.62,           16869.17,     24.08,     -4.33,          43.58,  +3.56,  +3.24
  3,     UK000T,       0,  0.159568, 2459487.399107058998, 318.86842,  14.51550,              196.08361,  52.14808,       196.08627,       52.14445,    318.86842,     +14.51550,     318.86676,      +14.51222,  3494956.96, -2124251.17,  4996172.05,      50.881952,       -3.831392,   91334.32,  115141.72,    2708.03,             2679.16,    -8.47,  18052.73,           16869.17,      7.87,     -1.42,          14.33,  +3.34,  +3.03
  4,     UK000T,       0,  0.199432, 2459487.399107520469, 318.73721,  14.61922,              196.31775,  52.22732,       196.33178,       52.20809,    318.73721,     +14.61922,     318.72571,      +14.60187,  3494280.13, -2124007.05,  4996184.19,      50.886869,       -3.833561,   90898.78,  114498.16,    3427.65,             3398.78,   -22.01,  18051.85,           17099.64,     41.42,     -7.45,          75.82,  +3.14,  +2.85
  5,     UK000T,       0,  0.239336, 2459487.399107982405, 318.57934,  14.69130,              196.58451,  52.27035,       196.58294,       52.27251,    318.57934,     +14.69130,     318.58172,      +14.69325,  3493597.25, -2123760.74,  4996196.43,      50.891830,       -3.835749,   90459.38,  113849.78,    4153.70,             4124.83,   -29.87,  18194.76,           17308.69,     -4.63,      0.83,           8.52,  +2.90,  +2.62
  6,     UK000T,       0,  0.279196, 2459487.399108443409, 318.43062,  14.79659,              196.84757,  52.34718,       196.85202,       52.34096,    318.43062,     +14.79659,     318.42782,      +14.79099,  3492874.80, -2123500.17,  4996209.39,      50.897079,       -3.838055,   89994.57,  113164.76,    4921.81,             4892.94,     5.15,  19270.27,           17572.58,     13.20,     -2.38,          24.44,  +3.15,  +2.88
  7,     UK000T,       0,  0.319084, 2459487.399108905345, 318.30124,  14.88171,              197.07499,  52.40728,       197.08154,       52.39807,    318.30124,     +14.88171,     318.29671,      +14.87342,  3492271.26, -2123282.49,  4996220.21,      50.901465,       -3.840009,   89606.28,  112593.66,    5563.49,             5534.62,   -86.78,  16087.13,           17586.70,     19.41,     -3.49,          36.14,  +3.13,  +2.87
  8,     UK000T,       0,  0.358972, 2459487.399109366816, 318.13985,  14.96448,              197.35198,  52.45879,       197.34814,       52.46424,    318.13985,     +14.96448,     318.14480,      +14.96938,  3491575.97, -2123031.71,  4996232.68,      50.906519,       -3.842236,   89159.01,  111936.39,    6302.74,             6273.87,   -81.14,  18532.98,           17650.26,    -11.40,      2.06,          21.35,  +2.93,  +2.69
  9,     UK000T,       0,  0.398864, 2459487.399109828752, 317.98175,  15.04716,              197.62428,  52.51031,       197.61147,       52.52871,    317.98175,     +15.04716,     317.99505,      +15.06368,  3490899.80, -2122787.83,  4996244.80,      50.911434,       -3.844407,   88724.08,  111298.27,    7021.64,             6992.77,   -95.92,  18021.31,           17702.86,    -38.19,      6.89,          71.93,  +3.16,  +2.93
 10,     UK000T,       0,  0.438720, 2459487.399110289756, 317.86304,  15.15409,              197.84365,  52.59264,       197.84850,       52.58564,    317.86304,     +15.15409,     317.86045,      +15.14781,  3490302.16, -2122572.27,  4996255.52,      50.915778,       -3.846345,   88339.67,  110735.33,    7657.06,             7628.19,  -193.52,  15942.72,           17658.66,     14.44,     -2.60,          27.33,  +3.78,  +3.56
 11,     UK000T,       0,  0.478612, 2459487.399110751692, 317.71716,  15.23408,              198.09712,  52.64300,       198.09605,       52.64457,    317.71716,     +15.23408,     317.72014,      +15.23548,  3489685.27, -2122349.77,  4996266.58,      50.920263,       -3.848341,   87942.90,  110155.03,    8312.94,             8284.07,  -271.32,  16441.51,           17588.49,     -3.20,      0.58,           6.09,  +3.44,  +3.23
 12,     UK000T,       1,  0.518540, 2459487.399111213628, 317.55290,  15.29045,              198.37173,  52.66620,       198.34650,       52.70349,    317.55290,     +15.29045,     317.57846,      +15.32384,  3489069.41, -2122127.64,  4996277.62,      50.924741,       -3.850335,   87546.82,  109576.58,    8967.73,             8938.86,  -350.87,  16399.28,           17507.94,    -75.84,     13.71,         145.08,  +2.84,  +2.64
 13,     UK000T,       0,  0.558348, 2459487.399111674633, 317.41222,  15.43335,              198.63931,  52.77826,       198.64285,       52.77300,    317.41222,     +15.43335,     317.41125,      +15.42864,  3488346.90, -2121867.05,  4996290.57,      50.929996,       -3.852646,   87082.23,  108898.71,    9735.91,             9707.04,  -314.83,  19297.15,           17504.97,     10.63,     -1.92,          20.47,  +4.30,  +4.11
 14,     UK000T,       0,  0.598272, 2459487.399112136569, 317.29378,  15.49038,              198.84356,  52.81035,       198.83905,       52.81709,    317.29378,     +15.49038,     317.30050,      +15.49640,  3487883.16, -2121699.79,  4996298.89,      50.933369,       -3.854190,   86783.98,  108465.03,   10228.96,            10200.09,  -556.05,  12349.63,           17379.35,    -13.55,      2.45,          26.18,  +5.34,  +5.16
  0,     UK0020,       1,  0.033827, 2459487.399105602875, 301.92140,  60.03912,              311.99806,  72.17271,       312.00843,       72.17443,    301.92140,     +60.03912,     301.92692,      +60.04154,  3496885.32, -2124946.69,  4996137.48,      50.867948,       -3.825164,   92575.42,   97155.08,       0.00,              628.92,   253.88,      0.00,           16686.36,     -5.20,     -3.24,          13.01,  +5.74,  +5.80
  1,     UK0020,       0,  0.074123, 2459487.399106069468, 301.41629,  60.33332,              312.62306,  71.83754,       312.58260,       71.83083,    301.41629,     +60.33332,     301.39529,      +60.32369,  3496224.92, -2124708.50,  4996149.32,      50.872743,       -3.827285,   92150.36,   96894.88,     702.14,             1331.06,   214.90,  17424.46,           16686.36,     20.49,     12.79,          51.42,  +4.14,  +4.21
  2,     UK0020,       0,  0.114327, 2459487.399106534664, 301.03579,  60.51813,              312.97659,  71.59853,       312.95561,       71.59506,    301.03579,     +60.51813,     301.02510,      +60.51306,  3495778.65, -2124547.53,  4996157.32,      50.875984,       -3.828772,   91863.12,   96722.41,    1176.62,             1805.54,   -50.04,  11801.85,           16686.36,     10.71,      6.68,          26.92,  +4.29,  +4.36
  3,     UK0020,       1,  0.154731, 2459487.399107002188, 300.25548,  60.84971,              313.55337,  71.12742,       313.65995,       71.14499,    300.25548,     +60.84971,     300.31386,      +60.87629,  3494926.47, -2124240.17,  4996172.60,      50.882174,       -3.831461,   91314.71,   96396.29,    2082.66,             2711.58,   112.91,  22424.54,           16686.36,    -55.25,    -34.38,         139.25,  +2.87,  +2.95
  4,     UK0020,       0,  0.194995, 2459487.399107468314, 299.78680,  61.11856,              314.09686,  70.82316,       314.12754,       70.82820,    299.78680,     +61.11856,     299.80445,      +61.12636,  3494335.67, -2124027.08,  4996183.19,      50.886465,       -3.833378,   90934.52,   96175.41,    2710.81,             3339.73,     0.53,  15600.75,           16882.04,    -16.05,    -10.00,          40.55,  +2.64,  +2.72
  5,     UK0020,       0,  0.235327, 2459487.399107934907, 299.17762,  61.43704,              314.70457,  70.44039,       314.68680,       70.43749,    299.17762,     +61.43704,     299.16870,      +61.43241,  3493611.58, -2123765.91,  4996196.18,      50.891726,       -3.835689,   90468.62,   95909.02,    3480.66,             4109.58,    28.61,  19087.91,           17253.37,      9.41,      5.86,          23.83,  +2.39,  +2.48
  6,     UK0020,       0,  0.275639, 2459487.399108401500, 298.58157,  61.72244,              315.21805,  70.07728,       315.18692,       70.07221,    298.58157,     +61.72244,     298.56513,      +61.71415,  3492941.63, -2123524.27,  4996208.19,      50.896594,       -3.837842,   90037.57,   95667.63,    4192.97,             4821.89,    -0.49,  17669.77,           17430.56,     16.66,     10.38,          42.32,  +2.52,  +2.62
  7,     UK0020,       0,  0.315943, 2459487.399108868092, 297.96910,  61.96520,              315.60266,  69.72374,       315.63747,       69.72940,    297.96910,     +61.96520,     297.99032,      +61.97469,  3492318.71, -2123299.60,  4996219.36,      50.901121,       -3.839855,   89636.81,   95447.62,    4855.25,             5484.17,   -79.46,  16432.31,           17421.18,    -18.85,    -11.73,          47.97,  +2.28,  +2.38
  8,     UK0020,       0,  0.356243, 2459487.399109334685, 297.39280,  62.24993,              316.11451,  69.37479,       316.09220,       69.37118,    297.39280,     +62.24993,     297.38137,      +62.24371,  3491672.66, -2123066.58,  4996230.94,      50.905816,       -3.841938,   89221.20,   95223.69,    5542.14,             6171.07,  -133.76,  17044.46,           17391.69,     12.20,      7.60,          31.14,  +1.95,  +2.06
  9,     UK0020,       0,  0.396595, 2459487.399109801743, 296.65187,  62.52104,              316.51539,  68.96112,       316.58207,       68.97189,    296.65187,     +62.52104,     296.69263,      +62.54010,  3490957.59, -2122808.67,  4996243.76,      50.911013,       -3.844226,   88761.25,   94980.75,    6302.40,             6931.33,  -115.64,  18840.70,           17455.81,    -36.95,    -22.97,          94.48,  +2.36,  +2.47
 10,     UK0020,       0,  0.436899, 2459487.399110267870, 296.04632,  62.79469,              316.97887,  68.60882,       317.00411,       68.61288,    296.04632,     +62.79469,     296.06312,      +62.80207,  3490320.66, -2122578.94,  4996255.18,      50.915644,       -3.846282,   88351.56,   94769.28,    6979.60,             7608.52,  -179.70,  16802.22,           17461.07,    -14.13,     -8.79,          36.22,  +2.11,  +2.23
 11,     UK0020,       0,  0.477199, 2459487.399110734463, 295.43027,  63.06122,              317.41689,  68.25708,       317.40923,       68.25585,    295.43027,     +63.06122,     295.42767,      +63.05894,  3489691.89, -2122352.16,  4996266.46,      50.920215,       -3.848316,   87947.16,   94564.88,    7648.12,             8277.04,  -252.37,  16588.46,           17430.55,      4.33,      2.69,          11.13,  +2.13,  +2.25
 12,     UK0020,       0,  0.517519, 2459487.399111201055, 294.75706,  63.32874,              317.83342,  67.88354,       317.82036,       67.88145,    294.75706,     +63.32874,     294.75130,      +63.32475,  3489036.86, -2122115.90,  4996278.20,      50.924978,       -3.850427,   87525.91,   94356.41,    8344.54,             8973.46,  -297.50,  17272.41,           17406.89,      7.47,      4.65,          19.23,  +2.12,  +2.25
 13,     UK0020,       0,  0.557875, 2459487.399111668114, 293.98309,  63.61085,              318.24865,  67.46614,       318.25995,       67.46795,    293.98309,     +63.61085,     293.99235,      +63.61439,  3488317.98, -2121856.62,  4996291.09,      50.930206,       -3.852730,   87063.65,   94132.78,    9108.86,             9737.78,  -275.39,  18939.49,           17435.86,     -6.55,     -4.07,          16.89,  +2.26,  +2.39
 14,     UK0020,       0,  0.598155, 2459487.399112134241, 293.37976,  63.84279,              318.60270,  67.13987,       318.59456,       67.13857,    293.37976,     +63.84279,     293.37723,      +63.84019,  3487750.80, -2121652.04,  4996301.26,      50.934331,       -3.854582,   86698.92,   93960.96,    9711.90,            10340.82,  -413.17,  14971.12,           17393.11,      4.76,      2.96,          12.30,  +2.76,  +2.90
 15,     UK0020,       0,  0.638479, 2459487.399112601299, 292.66841,  64.10541,              318.99417,  66.76185,       318.97162,       66.75826,    292.66841,     +64.10541,     292.65701,      +64.09804,  3487098.76, -2121416.86,  4996312.95,      50.939074,       -3.856687,   86279.68,   93767.44,   10405.15,            11034.08,  -461.55,  17192.13,           17360.08,     13.34,      8.29,          34.54,  +2.58,  +2.72
 16,     UK0020,       0,  0.678767, 2459487.399113067426, 292.00000,  64.30871,              319.25928,  66.42300,       319.28715,       66.42744,    292.00000,     +64.30871,     292.02035,      +64.31800,  3486535.94, -2121213.87,  4996323.05,      50.943169,       -3.858527,   85917.80,   93604.61,   11003.55,            11632.47,  -604.12,  14852.87,           17288.28,    -16.65,    -10.34,          43.20,  +3.22,  +3.36
 17,     UK0020,       0,  0.719119, 2459487.399113534484, 291.19014,  64.57802,              319.63892,  66.00930,       319.67278,       66.01468,    291.19014,     +64.57802,     291.21459,      +64.58958,  3485836.10, -2120961.45,  4996335.59,      50.948260,       -3.860775,   85467.91,   93406.43,   11747.61,            12376.54,  -602.19,  18439.43,           17258.11,    -20.47,    -12.71,          53.21,  +2.90,  +3.05

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.