Orbital Analysis for matched events on 20211103_010749.619_UK

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Summary for Event
-----------------
shower ID 628 STS
Lg 53.25° Bg -5.14° Vg 28.30km/s
mass 0.04868g, abs. mag 1.4
best visual mag 1.6
Path Details
------------
start 0.07° 52.87° 98.50km
end   0.11° 52.98° 82.11km

Orbit Details
-------------
Semimajor axis 2.04A.U., eccentricity 0.83, inclination 6.07°, Period 2.92Y, LA Sun 220.53°, last Perihelion 2019-01-14

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: 2459521.547102077864
Time: 2021-11-03 01:07:49.619527 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK002K and UK0035
 Convergence angle = 47.19794 deg
 R.A. =  53.03884  Dec = +15.09982 deg

Best intersection: Stations UK002K and UK0035 with Qconv = 47.20 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   1985395.96 +/- 58.64 m
 Y =   3377147.58 +/- 128.63 m
 Z =   5140527.95 +/- 30.95 m
 Vx =    17801.47 +/- 109.46 m/s
 Vy =    23336.13 +/- 116.02 m/s
 Vz =     7912.43 +/- 53.72 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+3.139420e+03, +6.287342e+03, +1.508350e+03, -2.413153e+03, +1.360662e+03, -1.104913e+03
+6.287342e+03, +1.424628e+04, +3.078690e+03, -6.434990e+03, +4.250032e+03, -2.574356e+03
+1.508350e+03, +3.078690e+03, +8.168556e+02, -1.230953e+03, +6.646881e+02, -3.142033e+02
-2.413153e+03, -6.434990e+03, -1.230953e+03, +6.196177e+03, +1.823279e+02, +2.483852e+03
+1.360662e+03, +4.250032e+03, +6.646881e+02, +1.823279e+02, +6.433270e+03, +6.827397e+02
-1.104913e+03, -2.574356e+03, -3.142033e+02, +2.483852e+03, +6.827397e+02, +1.898288e+03

Timing offsets (from input data):
    UK002K: 0.000000 s
    UK0035: 0.000015 s

Reference point on the trajectory:
  Time: 2021-11-03 01:07:49.619527 UTC
  Lon     = ++0.073292 +/- 0.0003 deg
  Lat     = +52.872096 +/- 0.0008 deg
  Lat geo = +52.689549 +/- 0.0008 deg
  Ht      =   98491.48 +/- 107.42 m

  JD dynamic   = 2459521.547902818769 
  LST apparent = 59.5490965457 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  52.66257 +/- 0.1617 deg
  Dec       = +15.08724 +/- 0.0644 deg
  Azimuth   = 190.79557 +/- 0.2576 deg
  Elevation = +51.82368 +/- 0.0553 deg
  Vavg      =  30.28555 +/- 0.0625 km/s
  Vinit     =  30.39858 +/- 0.0798 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  53.21684 +/- 0.1617 deg
  Dec       = +15.10339 +/- 0.0644 deg
  Azimuth   = 189.93747 +/- 0.2576 deg
  Elevation = +51.89993 +/- 0.0553 deg
  Vavg      =  30.25381 +/- 0.0625 km/s
  Vinit     =  30.36683 +/- 0.0798 km/s
Radiant (geocentric, J2000):
  R.A.   =  52.18778 +/- 0.1654 deg
  Dec    = +13.61034 +/- 0.0694 deg
  Vg     =  28.29719 +/- 0.0856 km/s
  Vinf   =  30.39858 +/- 0.0798 km/s
  Zc     =  37.99701 +/- 0.0552 deg
  Zg     =  39.40944 +/- 0.0599 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  53.25456 +/- 0.1474 deg
  Bg     =  -5.13525 +/- 0.0953 deg
  Vh     =  36.79630 +/- 0.0857 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =   0.06736 +/- 0.1116 deg
  Bh     =  -3.94673 +/- 0.0755 deg
  Vh_x   = -36.70902 +/- 0.0878 km/s
  Vh_y   =  -0.04315 +/- 0.0718 km/s
  Vh_z   =   2.53265 +/- 0.0446 km/s
Orbit:
  La Sun = 220.533470 +/- 0.0000 deg
  a      =   2.042467 +/- 0.0312 AU
  e      =   0.829553 +/- 0.0023
  i      =   6.067094 +/- 0.1183 deg
  peri   = 115.561274 +/- 0.2963 deg
  node   =  40.541666 +/- 0.0001 deg
  Pi     = 156.102940 +/- 0.2962 deg
  q      =   0.348133 +/- 0.0018 AU
  f      = 244.431492 +/- 0.2962 deg
  M      = 345.604775 +/- 0.3365 deg
  Q      =   3.736801 +/- 0.0617 AU
  n      =   0.337654 +/- 0.0073 deg/day
  T      =   2.918995 +/- 0.0678 years
  Last perihelion JD = 2458497.999561 (2019-01-14 11:59:22.111491) +/- 24.8350 days
  Tj     =   3.243784 +/- 0.0359
Shower association:
  IAU No.  =  628
  IAU code =  STS

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +4.914297e-06, -7.155225e-07, -4.522344e-02, +1.071532e-07, -1.904557e-04, -8.327034e-05
q   , -7.155225e-07, +3.720854e-06, -1.040502e-02, +1.835970e-07, -4.806701e-04, -1.481972e-04
Tp  , -4.522344e-02, -1.040502e-02, +4.961290e+02, -1.913069e-03, +4.140611e+00, +1.512150e+00
node, +1.071532e-07, +1.835970e-07, -1.913069e-03, +2.174831e-08, -3.217566e-05, -1.737489e-05
peri, -1.904557e-04, -4.806701e-04, +4.140611e+00, -3.217566e-05, +7.884828e-02, +2.578128e-02
i   , -8.327034e-05, -1.481972e-04, +1.512150e+00, -1.737489e-05, +2.578128e-02, +1.388690e-02

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.013492
 a2 = 14.610741

Mean time residuals from time vs. length:
  Station with reference time: UK002K
  Avg. res. = 1.163e-05 s
  Stddev    = 3.41e-03 s

Begin point on the trajectory:
  Lon =     0.073273 +/- 0.0004 deg
  Lat =    52.872034 +/- 0.0006 deg
  Ht  = 98500.50 +/- 73.80 m
End point on the trajectory:
  Lon =     0.105933 +/- 0.0003 deg
  Lat =    52.984416 +/- 0.0004 deg
  Ht  = 82108.94 +/- 42.58 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
    UK002K,   False,    -0.382860,    53.537770,   34.00,   0.016542,  14.176381,    98500.50,    82108.94,          0.012630,     24.90,      4.77,              20.03, 1.0000,    True,    True, {"ff_name": "FF_UK002K_20211103_010745_810_0725504.fits"}
    UK0035,   False,     1.010397,    52.949859,   25.00,   0.007558,  15.651325,    96508.31,    82350.01,          0.015054,     27.59,      8.83,              39.93, 1.0000,    True,    True, {"ff_name": "FF_UK0035_20211103_010749_695_0733184.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,     UK002K,       0,  0.000000, 2459521.547102077864,  73.82158,  15.56189,              157.45124,  50.30523,       157.45711,       50.29142,     73.82158,     +15.56189,      73.82119,      +15.54759,  1985402.68,  3377156.39,  5140530.94,      52.872034,       +0.073273,   98500.50,  127329.99,       0.00,               11.48,  -333.85,      0.00,           31441.05,      5.99,    -31.23,          51.50,  +4.58,  +4.06
  1,     UK002K,       0,  0.040148, 2459521.547102542594,  74.09260,  15.55344,              157.05769,  50.23474,       157.06306,       50.22234,     74.09260,     +15.55344,      74.09240,      +15.54058,  1984420.91,  3375869.38,  5140094.56,      52.881043,       +0.075945,   97182.66,  125757.25,    1676.51,             1665.03,    99.26,  41758.17,           31441.05,      5.31,    -27.73,          46.31,  +2.27,  +1.77
  2,     UK002K,       0,  0.080248, 2459521.547103006858,  74.27351,  15.54307,              156.79736,  50.18255,       156.80044,       50.17553,     74.27351,     +15.54307,      74.27363,      +15.53579,  1983772.17,  3375018.94,  5139806.21,      52.886999,       +0.077655,   96311.92,  124718.50,    2784.33,             2772.85,   -11.90,  27626.46,           31441.05,      2.98,    -15.58,          26.24,  +2.77,  +2.29
  3,     UK002K,       0,  0.120348, 2459521.547103470657,  74.44741,  15.52822,              156.54945,  50.12722,       156.54824,       50.12994,     74.44741,     +15.52822,      74.44800,      +15.53105,  1983157.06,  3374212.59,  5139532.81,      52.892647,       +0.079269,   95486.37,  123734.54,    3834.71,             3823.23,  -180.50,  26194.07,           31441.05,     -1.15,      6.00,          10.18,  +2.30,  +1.84
  4,     UK002K,       0,  0.160476, 2459521.547103935387,  74.68573,  15.52243,              156.20483,  50.06486,       156.20403,       50.06662,     74.68573,     +15.52243,      74.68646,      +15.52426,  1982337.23,  3373137.86,  5139168.40,      52.900177,       +0.081477,   94386.15,  122425.72,    5234.70,             5223.22,    -0.35,  34888.02,           31478.88,     -0.74,      3.85,           6.60,  +2.07,  +1.63
  5,     UK002K,       0,  0.200588, 2459521.547104399651,  74.92430,  15.53854,              155.85203,  50.02285,       155.86139,       50.00241,     74.92430,     +15.53854,      74.92445,      +15.51724,  1981535.69,  3372087.11,  5138812.13,      52.907541,       +0.083634,   93310.57,  121147.97,    6603.44,             6591.97,   149.05,  34123.11,           31867.40,      8.49,    -44.25,          76.71,  +1.90,  +1.48
  6,     UK002K,       0,  0.240720, 2459521.547104863916,  75.14267,  15.50810,              155.54757,  49.94000,       155.54646,       49.94237,     75.14267,     +15.50810,      75.14376,      +15.51057,  1980810.05,  3371135.86,  5138489.60,      52.914210,       +0.085571,   92336.92,  119992.63,    7842.58,             7831.10,   168.23,  30876.55,           31899.96,     -0.97,      5.10,           8.92,  +2.19,  +1.79
  7,     UK002K,       0,  0.280816, 2459521.547105328180,  75.32970,  15.50981,              155.27636,  49.89541,       155.27864,       49.89056,     75.32970,     +15.50981,      75.33070,      +15.50475,  1980199.58,  3370335.60,  5138218.26,      52.919822,       +0.087176,   91517.85,  119021.46,    8885.04,             8873.56,    -8.18,  25999.01,           31422.04,      1.98,    -10.33,          18.23,  +2.02,  +1.64
  8,     UK002K,       0,  0.320936, 2459521.547105792444,  75.53759,  15.49039,              154.98406,  49.82469,       154.98055,       49.83201,     75.53759,     +15.49039,      75.53921,      +15.49805,  1979531.77,  3369460.15,  5137921.43,      52.925963,       +0.088948,   90621.90,  117960.70,   10025.43,            10013.95,   -87.37,  28424.51,           30999.14,     -2.96,     15.51,          27.61,  +1.93,  +1.57
  9,     UK002K,       0,  0.361052, 2459521.547106256709,  75.75451,  15.48534,              154.67361,  49.76499,       154.67106,       49.77026,     75.75451,     +15.48534,      75.75623,      +15.49086,  1978849.56,  3368565.84,  5137618.20,      52.932238,       +0.090764,   89706.71,  116878.66,   11190.40,            11178.92,  -141.87,  29040.05,           30676.97,     -2.12,     11.07,          19.89,  +1.75,  +1.41
 10,     UK002K,       0,  0.401192, 2459521.547106721438,  76.03327,  15.49077,              154.27072,  49.69883,       154.27517,       49.68977,     76.03327,     +15.49077,      76.03458,      +15.48127,  1977996.71,  3367447.83,  5137239.12,      52.940085,       +0.093076,   88562.73,  115529.01,   12646.76,            12635.29,    94.29,  36282.13,           30756.19,      3.61,    -18.82,          34.21,  +1.79,  +1.48
 11,     UK002K,       0,  0.441312, 2459521.547107185703,  76.24636,  15.47603,              153.97128,  49.62936,       153.97237,       49.62717,     76.24636,     +15.47603,      76.24812,      +15.47374,  1977351.62,  3366602.18,  5136952.39,      52.946022,       +0.094786,   87697.47,  114509.06,   13748.34,            13736.86,   -23.73,  27456.97,           30674.98,      0.86,     -4.50,           8.26,  +1.65,  +1.36
 12,     UK002K,       0,  0.481480, 2459521.547107650433,  76.53234,  15.44704,              153.57447,  49.52635,       153.56667,       49.54173,     76.53234,     +15.44704,      76.53503,      +15.46321,  1976507.53,  3365495.65,  5136577.21,      52.953793,       +0.097076,   86565.42,  113177.75,   15189.75,            15178.27,   196.64,  35884.59,           30797.88,     -6.00,     31.41,          58.28,  +1.85,  +1.58
 13,     UK002K,       0,  0.521580, 2459521.547108114697,  76.73339,  15.45512,              153.28421,  49.48068,       153.28392,       49.48124,     76.73339,     +15.45512,      76.73559,      +15.45571,  1975924.03,  3364730.73,  5136317.85,      52.959166,       +0.098609,   85782.86,  112257.97,   16186.16,            16174.69,   -25.93,  24848.19,           30705.19,     -0.22,      1.14,           2.13,  +1.75,  +1.50
 14,     UK002K,       0,  0.561692, 2459521.547108578961,  76.97015,  15.46843,              152.94138,  49.42983,       152.95210,       49.40914,     76.97015,     +15.46843,      76.97157,      +15.44662,  1975251.87,  3363849.60,  5136019.09,      52.965358,       +0.100401,   84881.50,  111200.57,   17333.96,            17322.48,   -97.48,  28614.85,           30592.70,      7.99,    -41.61,          78.60,  +1.86,  +1.63
 15,     UK002K,       0,  0.601852, 2459521.547109043691,  77.23139,  15.42769,              152.58802,  49.31970,       152.58378,       49.32773,     77.23139,     +15.42769,      77.23429,      +15.43618,  1974519.64,  3362889.70,  5135693.63,      52.972104,       +0.102369,   83899.66,  110050.98,   18584.36,            18572.89,   -67.89,  31135.49,           30529.41,     -3.06,     16.02,          30.57,  +1.86,  +1.65
 16,     UK002K,       0,  0.641956, 2459521.547109507956,  77.45958,  15.45242,              152.25393,  49.28061,       152.26673,       49.25653,     77.45958,     +15.45242,      77.46113,      +15.42695,  1973897.07,  3362073.57,  5135416.90,      52.977842,       +0.104018,   83064.89,  109074.75,   19647.49,            19636.02,  -223.86,  26509.36,           30407.20,      9.15,    -47.66,          91.78,  +1.97,  +1.78
 17,     UK002K,       0,  0.682128, 2459521.547109972686,  77.72309,  15.39838,              151.90547,  49.15554,       151.89656,       49.17200,     77.72309,     +15.39838,      77.72677,      +15.41582,  1973184.05,  3361138.86,  5135099.98,      52.984416,       +0.105933,   82108.94,  107959.20,   20865.08,            20853.60,  -227.45,  30309.21,           30319.70,     -6.17,     32.31,          62.85,  +2.67,  +2.50
  0,     UK0035,       0,  0.071434, 2459521.547102925368,  15.31915,  38.92195,              263.87094,  56.29587,       263.87801,       56.30436,     15.31915,     +38.92195,      15.32464,      +38.93038,  1983918.49,  3375210.76,  5139871.25,      52.885655,       +0.077261,   96508.31,  115586.68,       0.00,             2522.98,     6.17,      0.00,           29486.81,      5.75,     17.96,          33.66,  +3.56,  +3.25
  1,     UK0035,       0,  0.111494, 2459521.547103388701,  14.85254,  39.09550,              264.52655,  56.12661,       264.52966,       56.13027,     14.85254,     +39.09550,      14.85523,      +39.09916,  1983197.44,  3374265.52,  5139550.75,      52.892276,       +0.079182,   95540.56,  114658.97,    1231.30,             3754.29,    19.71,  30736.51,           29486.81,      2.47,      7.71,          14.57,  +2.83,  +2.53
  2,     UK0035,       0,  0.151570, 2459521.547103852965,  14.42654,  39.21893,              265.07206,  55.94918,       265.09419,       55.97474,     14.42654,     +39.21893,      14.44264,      +39.24469,  1982576.95,  3373452.12,  5139274.96,      52.897974,       +0.080812,   94707.84,  113866.11,    2290.87,             4813.85,  -138.97,  26439.01,           29486.81,     17.20,     53.77,         102.27,  +3.34,  +3.06
  3,     UK0035,       0,  0.191614, 2459521.547104316298,  13.93108,  39.42708,              265.79056,  55.78280,       265.78759,       55.77943,     13.93108,     +39.42708,      13.92986,      +39.42367,  1981819.43,  3372459.07,  5138938.25,      52.904934,       +0.082841,   93691.30,  112902.63,    3584.46,             6107.44,   -62.67,  32304.12,           29486.81,     -2.26,     -7.05,          13.53,  +2.96,  +2.70
  4,     UK0035,       0,  0.231670, 2459521.547104779631,  13.40876,  39.62874,              266.51719,  55.59515,       266.49759,       55.57340,     13.40876,     +39.62874,      13.39668,      +39.60650,  1981049.04,  3371449.17,  5138595.83,      52.912013,       +0.084908,   92657.59,  111929.47,    4900.00,             7422.98,    35.23,  32842.50,           30337.86,    -14.56,    -45.41,          87.88,  +2.30,  +2.06
  5,     UK0035,       0,  0.271778, 2459521.547105243895,  12.88256,  39.75429,              267.13586,  55.35688,       267.15419,       55.37684,     12.88256,     +39.75429,      12.89560,      +39.77487,  1980341.18,  3370521.23,  5138281.20,      52.918520,       +0.086795,   91707.83,  111041.99,    6108.77,             8631.76,    24.78,  30138.01,           30552.49,     13.29,     41.56,          81.06,  +2.14,  +1.91
  6,     UK0035,       0,  0.311822, 2459521.547105707694,  12.35002,  39.98044,              267.89224,  55.17663,       267.87277,       55.15582,     12.35002,     +39.98044,      12.33898,      +39.95882,  1979571.15,  3369511.78,  5137938.93,      52.925601,       +0.088865,   90674.76,  110082.91,    7423.72,             9946.70,   122.44,  32837.43,           30873.78,    -13.83,    -43.17,          84.94,  +2.24,  +2.03
  7,     UK0035,       0,  0.351902, 2459521.547106171492,  11.88551,  40.10654,              268.44904,  54.97476,       268.44756,       54.97320,     11.88551,     +40.10654,      11.88606,      +40.10490,  1978958.65,  3368708.85,  5137666.69,      52.931234,       +0.090477,   89853.06,  109326.58,    8469.65,            10992.63,   -50.00,  26096.12,           30609.37,     -1.04,     -3.24,           6.41,  +1.85,  +1.66
  8,     UK0035,       0,  0.391986, 2459521.547106635291,  11.29280,  40.29579,              269.19181,  54.73408,       269.18996,       54.73216,     11.29280,     +40.29579,      11.29333,      +40.29377,  1978171.55,  3367677.04,  5137316.84,      52.938476,       +0.092599,   88797.25,  108359.86,    9813.73,            12336.71,    75.58,  33531.64,           30680.89,     -1.26,     -3.95,           7.88,  +1.59,  +1.42
  9,     UK0035,       0,  0.432046, 2459521.547107099090,  10.78322,  40.47139,              269.84213,  54.53451,       269.82664,       54.51877,     10.78322,     +40.47139,      10.77588,      +40.45467,  1977500.10,  3366796.82,  5137018.39,      52.944655,       +0.094385,   87896.62,  107542.48,   10960.34,            13483.32,     4.42,  28622.18,           30605.03,    -10.37,    -32.39,          65.23,  +1.56,  +1.40
 10,     UK0035,       0,  0.472150, 2459521.547107563354,  10.21000,  40.61591,              270.49507,  54.27720,       270.50380,       54.28592,     10.21000,     +40.61591,      10.21701,      +40.62526,  1976789.27,  3365864.98,  5136702.43,      52.951199,       +0.096287,   86943.24,  106683.36,   12174.19,            14697.17,    -0.83,  30267.59,           30548.29,      5.73,     17.91,          36.36,  +1.61,  +1.47
 11,     UK0035,       0,  0.512226, 2459521.547108027153,   9.60544,  40.81663,              271.24237,  54.03479,       271.23501,       54.02757,      9.60544,     +40.81663,       9.60345,      +40.80881,  1976025.32,  3364863.52,  5136362.87,      52.958233,       +0.098345,   85918.72,  105767.27,   13478.74,            16001.72,    85.46,  32551.84,           30592.64,     -4.73,    -14.80,          30.31,  +1.63,  +1.51
 12,     UK0035,       0,  0.552318, 2459521.547108490951,   9.10711,  40.93730,              271.79240,  53.80760,       271.80491,       53.81971,      9.10711,     +40.93730,       9.11630,      +40.95049,  1975432.30,  3364086.12,  5136099.29,      52.963696,       +0.099906,   85123.44,  105063.21,   14491.41,            17014.39,  -120.61,  25258.74,           30443.50,      7.91,     24.77,          51.06,  +1.65,  +1.54
 13,     UK0035,       0,  0.592398, 2459521.547108954750,   8.45624,  41.14331,              272.56917,  53.53981,       272.56564,       53.53645,      8.45624,     +41.14331,       8.45683,      +41.13961,  1974643.84,  3363052.52,  5135748.83,      52.970960,       +0.102038,   84066.21,  104132.81,   15837.81,            18360.79,     7.42,  33592.89,           30439.76,     -2.19,     -6.86,          14.27,  +1.69,  +1.60
 14,     UK0035,       0,  0.632462, 2459521.547109418549,   7.98765,  41.28404,              273.11329,  53.34228,       273.10069,       53.33043,      7.98765,     +41.28404,       7.98368,      +41.27092,  1974091.12,  3362327.96,  5135503.16,      52.976054,       +0.103484,   83325.06,  103487.97,   16781.65,            19304.64,  -266.62,  23558.39,           30265.34,     -7.72,    -24.15,          50.54,  +1.86,  +1.79
 15,     UK0035,       0,  0.672562, 2459521.547109882813,   7.35296,  41.45442,              273.81689,  53.06249,       273.80703,       53.05336,      7.35296,     +41.45442,       7.35073,      +41.44421,  1973363.86,  3361374.59,  5135179.91,      52.982758,       +0.105440,   82350.01,  102644.43,   18023.56,            20546.54,  -243.71,  30970.10,           30164.19,     -5.94,    -18.58,          39.19,  +2.92,  +2.86

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.