Orbital Analysis for matched events on 20210810_030306.648_UK

Summary for Event
-----------------
shower ID 7 PER
Lg 59.09° Bg 38.21° Vg 57.75km/s
mass 0.01050g, abs. mag 0.5
Path Details
------------
start -0.22° 50.73° 107.23km
end   -0.28° 50.70° 95.43km

Orbit Details
-------------
Semimajor axis 5.25A.U., eccentricity 0.82, inclination 112.84°, Period 12.05Y, LA Sun 137.43°, last Perihelion 2021-07-20

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: 2459436.627160278149
Time: 2021-08-10 03:03:06.648032 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK0001 and UK002B
 Convergence angle = 10.50454 deg
 R.A. =  44.69802  Dec = +55.39187 deg
Intersection 2 - Stations: UK0001 and UK002C
 Convergence angle = 22.49421 deg
 R.A. =  43.71750  Dec = +56.53900 deg
Intersection 3 - Stations: UK0001 and UK002D
 Convergence angle = 21.70345 deg
 R.A. =  42.00601  Dec = +58.37025 deg
Intersection 4 - Stations: UK0001 and UK0038
 Convergence angle = 11.26080 deg
 R.A. =  44.45340  Dec = +55.68520 deg
Intersection 5 - Stations: UK002B and UK002C
 Convergence angle = 11.99440 deg
 R.A. =  43.59097  Dec = +57.65242 deg
Intersection 6 - Stations: UK002B and UK002D
 Convergence angle = 11.23227 deg
 R.A. =  41.35862  Dec = +61.46156 deg
Intersection 7 - Stations: UK002B and UK0038
 Convergence angle = 0.75874 deg
 R.A. =  42.27663  Dec = +60.00313 deg
Intersection 8 - Stations: UK002C and UK002D
 Convergence angle = 1.10434 deg
 R.A. =  46.16980  Dec = +13.24936 deg
Intersection 9 - Stations: UK002C and UK0038
 Convergence angle = 11.23641 deg
 R.A. =  43.61031  Dec = +57.48650 deg
Intersection 10 - Stations: UK002D and UK0038
 Convergence angle = 10.47382 deg
 R.A. =  41.33311  Dec = +61.57203 deg

Best intersection: Stations UK0001 and UK002C with Qconv = 22.49 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   4101574.93 +/- 150.69 m
 Y =    314120.95 +/- 217.78 m
 Z =   4997374.54 +/- 142.44 m
 Vx =    23673.08 +/- 824.81 m/s
 Vy =    21856.11 +/- 1419.80 m/s
 Vz =    49192.93 +/- 1564.28 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+2.203731e+04, +3.103232e+04, +2.037540e+04, +1.118454e+05, +1.927221e+05, +3.597442e+04
+3.103232e+04, +4.540459e+04, +2.933504e+04, +1.569316e+05, +2.868755e+05, +4.805006e+04
+2.037540e+04, +2.933504e+04, +1.931195e+04, +1.047079e+05, +1.862834e+05, +3.192313e+04
+1.118454e+05, +1.569316e+05, +1.047079e+05, +6.707054e+05, +1.116529e+06, +2.052112e+05
+1.927221e+05, +2.868755e+05, +1.862834e+05, +1.116529e+06, +2.046673e+06, +3.209694e+05
+3.597442e+04, +4.805006e+04, +3.192313e+04, +2.052112e+05, +3.209694e+05, +1.017220e+05

Timing offsets (from input data):
    UK0001: 0.000000 s
    UK002B: -0.000956 s
    UK002C: -0.000569 s
    UK002D: -0.000569 s
    UK0038: -0.000628 s

Reference point on the trajectory:
  Time: 2021-08-10 03:03:06.648032 UTC
  Lon     = +-0.216756 +/- 0.0029 deg
  Lat     = +50.726106 +/- 0.0004 deg
  Lat geo = +50.540516 +/- 0.0004 deg
  Ht      =  107251.57 +/- 215.22 m

  JD dynamic   = 2459436.627961019054 
  LST apparent = 4.3794739473 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  42.71467 +/- 0.8996 deg
  Dec       = +56.77662 +/- 1.1182 deg
  Azimuth   =  59.91855 +/- 2.6735 deg
  Elevation = +66.87487 +/- 0.5831 deg
  Vavg      =  57.02291 +/- 1.7057 km/s
  Vinit     =  58.80518 +/- 1.0983 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  43.13068 +/- 0.8996 deg
  Dec       = +56.62454 +/- 1.1182 deg
  Azimuth   =  60.28740 +/- 2.6735 deg
  Elevation = +66.64225 +/- 0.5831 deg
  Vavg      =  57.12552 +/- 1.7057 km/s
  Vinit     =  58.90779 +/- 1.0983 km/s
Radiant (geocentric, J2000):
  R.A.   =  42.70249 +/- 0.8884 deg
  Dec    = +56.68466 +/- 1.1282 deg
  Vg     =  57.74849 +/- 1.1175 km/s
  Vinf   =  58.80518 +/- 1.0983 km/s
  Zc     =  23.21868 +/- 0.5759 deg
  Zg     =  23.43211 +/- 0.5742 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  59.08968 +/- 0.2392 deg
  Bg     = +38.21050 +/- 1.2195 deg
  Vh     =  39.76701 +/- 0.4990 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  77.98570 +/- 1.5183 deg
  Bh     = +63.93174 +/- 2.1750 deg
  Vh_x   =  -3.63758 +/- 0.8326 km/s
  Vh_y   = -17.09249 +/- 1.4206 km/s
  Vh_z   = -35.72156 +/- 0.3985 km/s
Orbit:
  La Sun = 137.431135 +/- 0.0000 deg
  a      =   5.254724 +/- 4.4817 AU
  e      =   0.817785 +/- 0.0436
  i      = 112.844752 +/- 2.3046 deg
  peri   = 151.243210 +/- 0.8482 deg
  node   = 137.431447 +/- 0.0002 deg
  Pi     = 288.674657 +/- 0.8482 deg
  q      =   0.957490 +/- 0.0034 AU
  f      =  28.753279 +/- 0.8482 deg
  M      =   1.723929 +/- 0.5032 deg
  Q      =   9.551958 +/- 8.9640 AU
  n      =   0.081824 +/- 0.0233 deg/day
  T      =  12.045518 +/- 22.9862 years
  Last perihelion JD = 2459415.559140 (2021-07-20 01:25:09.662850) +/- 0.6601 days
  Tj     =   0.541359 +/- 0.2818
Shower association:
  IAU No.  =    7
  IAU code =  PER

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +1.890034e-03, -2.773897e-05, +1.818727e-02, -1.061010e-07, +1.757439e-04, +1.535806e-03
q   , -2.773897e-05, +1.168234e-05, +1.554495e-03, +4.636009e-09, +4.656873e-05, -6.752842e-05
Tp  , +1.818727e-02, +1.554495e-03, +4.699683e-01, -5.174537e-07, +9.642112e-03, +7.419793e-03
node, -1.061010e-07, +4.636009e-09, -5.174537e-07, +7.571784e-12, +3.670417e-09, -1.098578e-07
peri, +1.757439e-04, +4.656873e-05, +9.642112e-03, +3.670417e-09, +2.307601e-04, -5.500590e-05
i   , +1.535806e-03, -6.752842e-05, +7.419793e-03, -1.098578e-07, -5.500590e-05, +1.594252e-03

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.000000
 a2 = 0.000000

Mean time residuals from time vs. length:
  Station with reference time: UK0001
  Avg. res. = 7.971e-07 s
  Stddev    = 8.93e-04 s

Begin point on the trajectory:
  Lon =    -0.216884 +/- 0.0028 deg
  Lat =    50.726059 +/- 0.0004 deg
  Ht  = 107226.71 +/- 209.75 m
End point on the trajectory:
  Lon =    -0.278731 +/- 0.0034 deg
  Lat =    50.703680 +/- 0.0004 deg
  Ht  = 95432.03 +/- 276.02 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
    UK0001,   False,    -1.778230,    50.857470,   24.00,   0.000000,   0.000000,   107226.71,    96499.49,          0.006659,      2.00,     16.85,              29.76, 0.2464,    True,   False, {"ff_name": "FF_UK0001_20210810_030300_650_0609280.fits"}
    UK002B,   False,    -1.367130,    50.815550,   22.00,   0.000000,   0.000000,   103909.95,    95432.03,          0.048598,      8.48,    106.78,              22.39, 0.1450,    True,    True, {"ff_name": "FF_UK002B_20210810_030301_933_0612352.fits"}
    UK002C,   False,    -1.801980,    51.351940,  130.00,   0.578597,  23.212213,   104549.83,    95937.57,          0.040641,     33.49,    111.62,              43.06, 0.4661,    True,    True, {"ff_name": "FF_UK002C_20210810_030303_729_0605952.fits"}
    UK002D,   False,    -1.801980,    51.351940,  129.00,   0.000000,   0.000000,   106178.80,    95990.71,          0.021467,     17.90,     60.10,              43.06, 0.4661,    True,    True, {"ff_name": "FF_UK002D_20210810_030300_811_0605952.fits"}
    UK0038,   False,    -2.379250,    51.361350,  169.00,   0.000000,   0.000000,   106047.09,    95440.28,          0.030233,     10.58,    102.71,              46.00, 0.5175,    True,    True, {"ff_name": "FF_UK0038_20210810_030302_285_0602112.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,     UK0001,       0,  0.000000, 2459436.627160278149,  58.09579,  28.40407,               96.96387,  43.25183,        96.95874,       43.24978,     58.09579,     +28.40407,      58.10043,      +28.40529,  4101564.04,   314110.91,  4997351.92,      50.726059,       -0.216884,  107226.71,  155023.99,       0.00,               27.03,   358.15,      0.00,           57712.66,     11.43,     -1.36,          15.32,  +2.40,  +1.45
  1,     UK0001,       0,  0.040196, 2459436.627160743345,  58.21132,  28.08126,               97.18026,  42.95250,        97.18346,       42.95377,     58.21132,     +28.08126,      58.20859,      +28.08050,  4100837.52,   313440.15,  4995842.21,      50.722917,       -0.225596,  105567.02,  153461.34,    1804.72,             1831.75,  -200.86,  44897.93,           57712.66,     -7.09,      0.85,           9.60,  +1.63,  +0.70
  2,     UK0001,       0,  0.080464, 2459436.627161209472,  58.36085,  27.61839,               97.49942,  42.53204,        97.49840,       42.53163,     58.36085,     +27.61839,      58.36212,      +27.61864,  4099830.94,   312510.82,  4993750.51,      50.718560,       -0.237608,  103267.67,  151308.68,    4305.12,             4332.16,   -68.42,  62094.14,           57712.66,      2.26,     -0.27,           3.10,  +1.21,  +0.31
  3,     UK0001,       0,  0.120756, 2459436.627161675598,  58.52353,  27.12270,               97.83297,  42.07846,        97.83140,       42.07784,     58.52353,     +27.12270,      58.52546,      +27.12308,  4098782.30,   311542.67,  4991571.43,      50.714017,       -0.250121,  100872.40,  149078.13,    6910.00,             6937.03,   167.08,  64649.95,           57712.66,      3.42,     -0.41,           4.76,  +1.23,  +0.36
  4,     UK0001,       0,  0.161024, 2459436.627162141725,  58.67468,  26.66413,               98.13549,  41.65691,        98.13570,       41.65699,     58.67468,     +26.66413,      58.67516,      +26.66408,  4097838.16,   310671.00,  4989609.51,      50.709923,       -0.261409,   98715.95,  147079.65,    9255.28,             9282.31,   144.39,  58241.78,           58658.59,     -0.45,      0.05,           0.63,  +1.16,  +0.32
  5,     UK0001,       0,  0.201300, 2459436.627162607852,  58.81476,  26.17458,               98.47105,  41.21860,        98.45289,       41.21141,     58.81476,     +26.17458,      58.83211,      +26.17892,  4096867.70,   309775.02,  4987592.87,      50.705710,       -0.273014,   96499.49,  145036.63,   11665.96,            11693.00,   186.64,  59854.13,           59099.59,     38.81,     -4.60,          55.58,  +1.34,  +0.53
  0,     UK002B,       1,  0.029716, 2459436.627160857432,  51.10649,  34.27120,               96.86923,  51.87581,        96.82975,       51.85697,     51.10649,     +34.27120,      51.14321,      +34.27745,  4100887.07,   313485.90,  4995945.18,      50.723132,       -0.225055,  105680.22,  133675.91,       0.00,             1708.66,   292.31,      0.00,           57661.01,     71.65,      5.62,         110.90,  +5.75,  +5.12
  1,     UK002B,       0,  0.069864, 2459436.627161322162,  51.18971,  33.95167,               97.18744,  51.61498,        97.15503,       51.59957,     51.18971,     +33.95167,      51.22002,      +33.95679,  4100112.11,   312770.41,  4994334.79,      50.719778,       -0.234340,  103909.95,  131901.68,    1925.05,             3633.71,  -143.56,  47948.80,           57661.01,     58.19,      4.56,          91.27,  +2.04,  +1.44
  2,     UK002B,       0,  0.110044, 2459436.627161786892,  51.26505,  33.51514,               97.64903,  51.28073,        97.58611,       51.25090,     51.26505,     +33.51514,      51.32364,      +33.52503,  4099102.19,   311838.00,  4992236.16,      50.715404,       -0.246395,  101603.06,  129598.39,    4433.75,             6142.41,     2.36,  62436.66,           57661.01,    111.37,      8.82,         177.81,  +1.51,  +0.95
  3,     UK002B,       0,  0.150248, 2459436.627162252087,  51.37482,  33.07906,               98.07221,  50.92300,        98.01592,       50.89643,     51.37482,     +33.07906,      51.42739,      +33.08790,  4098115.03,   310926.61,  4990184.83,      50.711124,       -0.258188,   99348.31,  127354.49,    6885.91,             8594.57,    90.31,  60992.83,           57661.01,     98.24,      7.77,         159.60,  +1.08,  +0.55
  4,     UK002B,       0,  0.190444, 2459436.627162717748,  51.46748,  32.63741,               98.50957,  50.57011,        98.44189,       50.53829,     51.46748,     +32.63741,      51.53063,      +32.64800,  4097155.53,   310040.76,  4988190.98,      50.706960,       -0.269661,   97156.85,  125180.87,    9269.36,            10978.02,   110.03,  59295.68,           58480.54,    116.50,      9.26,         192.57,  +1.17,  +0.68
  5,     UK002B,       0,  0.230600, 2459436.627163182478,  51.53931,  32.27899,               98.86205,  50.28425,        98.78328,       50.24732,     51.53931,     +32.27899,      51.61278,      +32.29128,  4096400.31,   309343.50,  4986621.63,      50.703680,       -0.278731,   95432.03,  123473.99,   11145.36,            12854.02,  -375.36,  46717.75,           57035.37,    134.14,     10.71,         224.80,  +3.18,  +2.72
  0,     UK002C,       0,  0.054738, 2459436.627160949167,  46.18314,  12.60561,              121.91838,  37.83272,       121.88408,       37.81697,     46.18314,     +12.60561,      46.21546,      +12.60709,  4100392.23,   313029.03,  4994916.89,      50.720990,       -0.230909,  104549.83,  168083.53,       0.00,             2937.87,    50.09,      0.00,           57844.42,     88.07,     26.37,         112.82,  +1.95,  +0.82
  1,     UK002C,       0,  0.095114, 2459436.627161416691,  46.21164,  12.03586,              122.27819,  37.33867,       122.24790,       37.32479,     46.21164,     +12.03586,      46.24045,      +12.03718,  4099435.37,   312145.62,  4992928.52,      50.716847,       -0.242339,  102364.12,  166381.35,    2376.89,             5314.76,    52.66,  58868.85,           57844.42,     77.34,     23.16,         100.09,  +1.59,  +0.48
  2,     UK002C,       0,  0.135470, 2459436.627161883749,  46.21777,  11.47965,              122.64722,  36.86668,       122.59802,       36.84416,     46.21777,     +11.47965,      46.26457,      +11.48178,  4098521.23,   311301.63,  4991028.92,      50.712885,       -0.253270,  100276.08,  164770.51,    4647.67,             7585.55,   -49.69,  56268.86,           57844.42,    124.92,     37.47,         163.26,  +1.36,  +0.28
  3,     UK002C,       0,  0.175854, 2459436.627162350807,  46.22754,  10.88524,              123.03323,  36.35931,       122.96729,       36.32919,     46.22754,     +10.88524,      46.29040,      +10.88808,  4097563.36,   310417.28,  4989038.46,      50.708730,       -0.264723,   98088.30,  163099.97,    7027.07,             9964.94,   -45.09,  58919.27,           57844.42,    166.47,     50.01,         219.83,  +1.21,  +0.15
  4,     UK002C,       0,  0.216270, 2459436.627162818797,  46.28803,  10.29124,              123.36173,  35.82461,       123.33291,       35.81149,     46.28803,     +10.29124,      46.31615,      +10.29250,  4096621.67,   309547.87,  4987081.61,      50.704641,       -0.275990,   95937.57,  161474.93,    9366.29,            12304.16,   -82.54,  57878.47,           57906.25,     72.35,     21.67,          96.47,  +1.73,  +0.69
  0,     UK002D,       0,  0.017279, 2459436.627160524484,  46.22242,  13.02565,              121.58731,  38.16414,       121.61418,       38.17649,     46.22242,     +13.02565,      46.19742,      +13.02446,  4101105.33,   313687.40,  4996398.71,      50.724076,       -0.222367,  106178.80,  169364.63,       0.00,             1166.50,   481.50,      0.00,           56155.00,    -69.31,    -20.65,          88.08,  +2.29,  +1.15
  1,     UK002D,       0,  0.057659, 2459436.627160991542,  46.25792,  12.58079,              121.85790,  37.77224,       121.90253,       37.79271,     46.25792,     +12.58079,      46.21644,      +12.57881,  4100343.86,   312984.38,  4994816.37,      50.720781,       -0.231493,  104439.34,  167997.39,    1891.53,             3058.03,    -1.52,  46843.15,           56155.00,   -114.62,    -34.10,         146.82,  +1.67,  +0.54
  2,     UK002D,       0,  0.098163, 2459436.627161460463,  46.24347,  11.98471,              122.27996,  37.27881,       122.28134,       37.27945,     46.24347,     +11.98471,      46.24260,      +11.98465,  4099347.77,   312064.74,  4992746.49,      50.716468,       -0.243386,  102164.02,  166226.94,    4365.87,             5532.37,    90.97,  61088.79,           56155.00,     -3.54,     -1.06,           4.58,  +1.00,  -0.10
  3,     UK002D,       0,  0.138663, 2459436.627161929384,  46.26726,  11.40028,              122.64928,  36.77367,       122.64902,       36.77355,     46.26726,     +11.40028,      46.26811,      +11.40029,  4098388.24,   311178.85,  4990752.57,      50.712309,       -0.254853,   99972.34,  164538.45,    6749.40,             7915.90,    92.89,  58852.56,           56155.00,      0.68,      0.20,           0.89,  +0.95,  -0.13
  4,     UK002D,       0,  0.179119, 2459436.627162397373,  46.31154,  10.87031,              122.95650,  36.30269,       122.97927,       36.31307,     46.31154,     +10.87031,      46.29087,      +10.86930,  4097532.93,   310389.19,  4988975.23,      50.708598,       -0.265098,   98018.81,  163047.25,    8874.02,            10040.52,  -161.51,  52516.95,           55861.78,    -57.47,    -17.14,          75.87,  +1.16,  +0.10
  5,     UK002D,       0,  0.219599, 2459436.627162865829,  46.30636,  10.30732,              123.33236,  35.82868,       123.32422,       35.82498,     46.30636,     +10.30732,      46.31497,      +10.30767,  4096644.94,   309569.35,  4987129.96,      50.704742,       -0.275733,   95990.71,  161514.46,   11079.85,            12246.35,  -336.11,  54491.91,           55582.26,     20.42,      6.11,          27.22,  +3.99,  +2.95
  0,     UK0038,       0,  0.025347, 2459436.627160638571,  54.63732,  10.83317,              114.24277,  31.38755,       114.28712,       31.40642,     54.63732,     +10.83317,      54.59491,      +10.82661,  4101047.67,   313634.17,  4996278.90,      50.723826,       -0.223087,  106047.09,  198913.07,       0.00,             1309.72,   150.31,      0.00,           57687.34,   -146.06,    -15.02,         152.26,  +2.83,  +1.34
  1,     UK0038,       0,  0.065755, 2459436.627161106095,  54.69371,  10.36687,              114.50531,  30.97518,       114.53376,       30.98727,     54.69371,     +10.36687,      54.66666,      +10.36266,  4100154.20,   312809.28,  4994422.26,      50.719960,       -0.233766,  104006.10,  197392.99,    2219.43,             3529.15,    -6.47,  54925.40,           57687.34,    -93.30,     -9.63,          98.02,  +1.65,  +0.17
  2,     UK0038,       0,  0.106203, 2459436.627161574550,  54.75202,   9.85797,              114.79209,  30.52625,       114.80007,       30.52964,     54.75202,      +9.85797,      54.74480,       +9.85679,  4099195.45,   311924.11,  4992429.97,      50.715808,       -0.245220,  101816.10,  195777.45,    4601.01,             5910.73,    -3.43,  58880.18,           57687.34,    -26.07,     -2.70,          27.61,  +1.56,  +0.10
  3,     UK0038,       0,  0.146655, 2459436.627162042540,  54.85834,   9.34809,              115.03185,  30.04865,       115.06814,       30.06404,     54.85834,      +9.34809,      54.82396,       +9.34269,  4098237.02,   311039.24,  4990438.33,      50.711653,       -0.256675,   99626.93,  194178.30,    6981.82,             8291.54,    -1.41,  58855.16,           57687.34,   -117.91,    -12.16,         125.91,  +1.35,  -0.09
  4,     UK0038,       0,  0.187135, 2459436.627162510995,  54.94730,   8.80384,              115.30777,  29.55206,       115.34953,       29.56974,     54.94730,      +8.80384,      54.90772,       +8.79761,  4097237.75,   310116.66,  4988361.83,      50.707317,       -0.268617,   97344.63,  192528.73,    9464.06,            10773.78,   100.39,  61320.14,           58571.22,   -135.03,    -13.92,         145.43,  +1.57,  +0.15
  5,     UK0038,       0,  0.227543, 2459436.627162978984,  54.97089,   8.33469,              115.59269,  29.15335,       115.58619,       29.15060,     54.97089,      +8.33469,      54.97817,       +8.33566,  4096403.92,   309346.83,  4986629.13,      50.703695,       -0.278615,   95440.28,  191164.57,   11535.33,            12845.06,  -204.53,  51259.01,           57780.01,     20.95,      2.18,          22.73,  +2.87,  +1.46

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.