Orbital Analysis for matched events on 20211103_033932.749_UK

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Summary for Event
-----------------
shower ID -1 spo
Lg 106.75° Bg 37.53° Vg 55.29km/s
mass 0.01020g, abs. mag 0.0
best visual mag 0.9
Path Details
------------
start 0.76° 51.63° 107.39km
end   0.73° 51.61° 96.10km

Orbit Details
-------------
Semimajor axis 4.00A.U., eccentricity 0.81, inclination 106.64°, Period 8.01Y, LA Sun 220.64°, last Perihelion 2013-12-07

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: 2459521.652462378144
Time: 2021-11-03 03:39:32.749472 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK002B and UK002C
 Convergence angle = 24.51165 deg
 R.A. = 114.22610  Dec = +59.16764 deg
Intersection 2 - Stations: UK002B and UK0041
 Convergence angle = 41.78486 deg
 R.A. = 119.84039  Dec = +59.78690 deg
Intersection 3 - Stations: UK002B and UK004P
 Convergence angle = 51.76602 deg
 R.A. = 118.36847  Dec = +59.64986 deg
Intersection 4 - Stations: UK002C and UK0041
 Convergence angle = 66.27410 deg
 R.A. = 118.25886  Dec = +58.74141 deg
Intersection 5 - Stations: UK002C and UK004P
 Convergence angle = 76.26398 deg
 R.A. = 117.55492  Dec = +58.82567 deg
Intersection 6 - Stations: UK0041 and UK004P
 Convergence angle = 9.99615 deg
 R.A. = 115.93831  Dec = +57.04655 deg

Best intersection: Stations UK002C and UK004P with Qconv = 76.26 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   -580283.75 +/- 20.76 m
 Y =   3992105.54 +/- 19.30 m
 Z =   5061490.43 +/- 49.35 m
 Vx =   -13045.10 +/- 144.13 m/s
 Vy =    25664.80 +/- 288.43 m/s
 Vz =    48495.27 +/- 210.13 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+4.632642e+02, -4.480375e+01, -7.033265e+02, +2.018310e+03, +2.618229e+03, -4.996390e+02
-4.480375e+01, +3.860940e+02, +1.118137e+02, -3.672121e+02, +1.504847e+03, -1.249543e+02
-7.033265e+02, +1.118137e+02, +2.624382e+03, +1.175995e+03, -9.929397e+03, +2.686633e+03
+2.018310e+03, -3.672121e+02, +1.175995e+03, +3.231017e+04, -1.947404e+03, +3.241078e+03
+2.618229e+03, +1.504847e+03, -9.929397e+03, -1.947404e+03, +8.622549e+04, -1.813540e+04
-4.996390e+02, -1.249543e+02, +2.686633e+03, +3.241078e+03, -1.813540e+04, +5.257349e+03

Timing offsets (from input data):
    UK000F: 0.000000 s
    UK002B: 0.000176 s
    UK002C: 0.000346 s
    UK002F: 0.000000 s
    UK0041: 0.000677 s
    UK004P: 0.000000 s

Reference point on the trajectory:
  Time: 2021-11-03 03:39:32.749472 UTC
  Lon     = ++0.761107 +/- 0.0003 deg
  Lat     = +51.629126 +/- 0.0003 deg
  Lat geo = +51.444797 +/- 0.0003 deg
  Ht      =  107348.15 +/- 43.29 m

  JD dynamic   = 2459521.653263119049 
  LST apparent = 98.2704655517 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 116.94367 +/- 0.3894 deg
  Dec       = +59.30394 +/- 0.2645 deg
  Azimuth   =  46.58902 +/- 0.9693 deg
  Elevation = +76.99778 +/- 0.2481 deg
  Vavg      =  56.22259 +/- 0.1395 km/s
  Vinit     =  56.39723 +/- 0.0886 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 117.49646 +/- 0.3894 deg
  Dec       = +59.22056 +/- 0.2645 deg
  Azimuth   =  47.48667 +/- 0.9693 deg
  Elevation = +76.78486 +/- 0.2481 deg
  Vavg      =  56.27141 +/- 0.1395 km/s
  Vinit     =  56.44606 +/- 0.0886 km/s
Radiant (geocentric, J2000):
  R.A.   = 116.70507 +/- 0.3948 deg
  Dec    = +59.42103 +/- 0.2672 deg
  Vg     =  55.29451 +/- 0.0904 km/s
  Vinf   =  56.39723 +/- 0.0886 km/s
  Zc     =  13.12957 +/- 0.2491 deg
  Zg     =  13.25977 +/- 0.2519 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 106.75462 +/- 0.2286 deg
  Bg     = +37.52691 +/- 0.2816 deg
  Vh     =  39.58174 +/- 0.0596 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  69.59584 +/- 0.4931 deg
  Bh     = +58.31462 +/- 0.4042 deg
  Vh_x   =  -7.24840 +/- 0.1694 km/s
  Vh_y   = -19.48602 +/- 0.2371 km/s
  Vh_z   = -33.68189 +/- 0.1682 km/s
Orbit:
  La Sun = 220.639006 +/- -0.0000 deg
  a      =   4.002160 +/- 0.0789 AU
  e      =   0.810805 +/- 0.0041
  i      = 106.637584 +/- 0.4034 deg
  peri   = 241.890322 +/- 0.7011 deg
  node   = 220.641076 +/- 0.0000 deg
  Pi     = 102.531398 +/- 0.7011 deg
  q      =   0.757188 +/- 0.0048 AU
  f      = 298.110610 +/- 0.7011 deg
  M      = 355.418655 +/- 0.1665 deg
  Q      =   7.247132 +/- 0.1576 AU
  n      =   0.123101 +/- 0.0040 deg/day
  T      =   8.006492 +/- 0.2327 years
  Last perihelion JD = 2456634.447156 (2013-12-07 22:43:54.267493) +/- 85.1120 days
  Tj     =   1.006441 +/- 0.0237
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +1.862214e-05, -5.175246e-06, -3.640929e-01, -1.485785e-08, +3.184819e-04, -8.692357e-04
q   , -5.175246e-06, +2.526442e-05, -3.198610e-02, -2.066803e-08, -3.613891e-03, -1.212047e-03
Tp  , -3.640929e-01, -3.198610e-02, +7.868890e+03, +4.304420e-04, +1.347488e+01, +2.519819e+01
node, -1.485785e-08, -2.066803e-08, +4.304420e-04, +5.105751e-11, +3.409698e-06, +2.989884e-06
peri, +3.184819e-04, -3.613891e-03, +1.347488e+01, +3.409698e-06, +5.270764e-01, +1.999090e-01
i   , -8.692357e-04, -1.212047e-03, +2.519819e+01, +2.989884e-06, +1.999090e-01, +1.750863e-01

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: UK004P
  Avg. res. = 8.198e-07 s
  Stddev    = 9.05e-04 s

Begin point on the trajectory:
  Lon =     0.761198 +/- 0.0003 deg
  Lat =    51.629180 +/- 0.0003 deg
  Ht  = 107386.34 +/- 30.23 m
End point on the trajectory:
  Lon =     0.733431 +/- 0.0004 deg
  Lat =    51.613321 +/- 0.0004 deg
  Ht  = 96101.71 +/- 50.58 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
    UK000F,    True,    -1.306160,    51.883100,   80.00,   0.000000,   0.000000,   107864.99,    98732.51,          0.156089,       nan,       nan,              46.09, 0.0000,    True,    True, {"ff_name": "FF_UK000F_20211103_033925_267_0942336.fits"}
    UK002B,   False,    -1.367130,    50.815550,   22.00,   0.000000,   0.000000,   106865.16,    98115.50,          0.014117,     13.81,     47.72,              44.84, 0.4972,    True,    True, {"ff_name": "FF_UK002B_20211103_033925_509_0939776.fits"}
    UK002C,   False,    -1.801980,    51.351940,  130.00,   0.000000,   0.000000,   106749.04,    99944.48,          0.011570,     27.82,     31.92,              47.87, 0.5500,    True,    True, {"ff_name": "FF_UK002C_20211103_033923_149_0937472.fits"}
    UK002F,    True,    -1.306160,    51.883100,   80.00,   0.000000,   0.000000,   106664.04,    97874.55,          0.049446,       nan,       nan,              46.09, 0.0000,    True,    True, {"ff_name": "FF_UK002F_20211103_033931_842_0918016.fits"}
    UK0041,   False,     1.214343,    52.647541,   45.00,   0.000000,   0.000000,   107250.31,    98641.14,          0.013357,     16.04,     32.60,              58.62, 0.7288,    True,    True, {"ff_name": "FF_UK0041_20211103_033926_452_0954880.fits"}
    UK004P,   False,     0.265814,    50.757198,   61.00,   0.000000,   0.000000,   107386.34,    96101.71,          0.009413,     13.40,     19.17,              32.61, 0.2904,    True,    True, {"ff_name": "FF_UK004P_20211103_033925_391_0949504.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,     UK000F,       1, -0.006496, 2459521.652462302707, 155.64751,  21.66457,              100.18870,  35.59728,       100.34668,       35.63096,    155.64751,     +21.66457,     155.51921,      +21.60614,  -580406.45,  3992346.93,  5061946.55,      51.629851,       +0.762365,  107864.99,  182120.00,       0.00,              530.44,  1203.62,     -0.00,           54639.73,    176.16,    383.52,         478.00,  +2.18,  +0.88
  1,     UK000F,       1,  0.033904, 2459521.652462770697, 155.88581,  21.24626,              100.31742,  35.13560,       100.49587,       35.17360,    155.88581,     +21.24626,     155.74063,      +21.18008,  -579928.99,  3991407.58,  5060171.59,      51.627029,       +0.757404,  105853.73,  180697.36,    2064.18,             1533.74,   -71.54,  51093.63,           54639.73,    198.63,    432.02,         542.78,  +1.10,  -0.18
  2,     UK000F,       1,  0.074356, 2459521.652463238686, 156.12035,  20.76575,              100.49559,  34.62819,       100.66016,       34.66324,    156.12035,     +20.76575,     155.98619,      +20.70459,  -579405.32,  3990377.31,  5058224.83,      51.623933,       +0.751976,  103647.83,  179152.35,    4328.15,             3797.70,   -88.95,  55966.69,           54639.73,    182.54,    397.35,         503.45,  +1.45,  +0.18
  3,     UK000F,       1,  0.114820, 2459521.652463707142, 156.37209,  20.27834,              100.66061,  34.10416,       100.82657,       34.13950,    156.37209,     +20.27834,     156.23649,      +20.21649,  -578877.34,  3989338.58,  5056262.08,      51.620808,       +0.746502,  101423.83,  177610.37,    6610.72,             6080.28,   -88.44,  56409.92,           54639.73,    183.57,    399.60,         510.70,  +2.70,  +1.45
  4,     UK000F,       1,  0.155380, 2459521.652464176528, 156.73828,  19.70263,              100.79136,  33.44231,       101.02880,       33.49272,    156.73828,     +19.70263,     156.54349,      +19.61372,  -578238.41,  3988081.56,  5053886.86,      51.617023,       +0.739909,   98732.51,  175767.95,    9372.96,             8842.52,   386.33,  68102.66,           57561.59,    262.53,    569.40,         735.80,  +5.65,  +4.43
  0,     UK002B,       0,  0.015169, 2459521.652462551836, 188.78755,  43.12020,               57.86678,  30.56604,        57.84819,       30.56490,    188.78755,     +43.12020,     188.80368,      +43.13116,  -580169.10,  3991879.96,  5061064.19,      51.628449,       +0.759893,  106865.16,  205369.90,       0.00,              495.70,   -52.97,      0.00,           59441.60,    -55.24,    -16.02,          57.77,  +2.54,  +0.98
  1,     UK002B,       0,  0.055549, 2459521.652463018894, 189.22699,  42.80465,               57.87993,  30.11564,        57.88324,       30.11584,    189.22699,     +42.80465,     189.22435,      +42.80270,  -579645.96,  3990850.74,  5059119.41,      51.625356,       +0.754473,  104661.49,  203775.60,    2261.67,             2757.36,   -68.62,  56009.59,           59441.60,      9.78,      2.83,          10.31,  +1.79,  +0.24
  2,     UK002B,       0,  0.095953, 2459521.652463486418, 189.67264,  42.46130,               57.90854,  29.64154,        57.91992,       29.64224,    189.67264,     +42.46130,     189.66313,      +42.45460,  -579102.98,  3989782.50,  5057100.90,      51.622144,       +0.748850,  102374.30,  202134.69,    4609.08,             5104.78,     0.12,  58098.50,           59441.60,     33.61,      9.72,          35.70,  +1.68,  +0.15
  3,     UK002B,       0,  0.136405, 2459521.652463954873, 190.17514,  42.07208,               57.93706,  29.10381,        57.96130,       29.10529,    190.17514,     +42.07208,     190.15451,      +42.05782,  -578498.03,  3988592.32,  5054851.98,      51.618562,       +0.742600,   99826.07,  200324.09,    7224.44,             7720.14,   334.10,  64653.54,           59441.60,     71.32,     20.61,          76.44,  +2.81,  +1.30
  4,     UK002B,       0,  0.176717, 2459521.652464421466, 190.47178,  41.77799,               58.00395,  28.74081,        57.98862,       28.73987,    190.47178,     +41.77799,     190.48596,      +41.78700,  -578091.94,  3987793.38,  5053342.33,      51.616155,       +0.738348,   98115.50,  199115.84,    8980.08,             9475.77,  -183.75,  43551.14,           56748.14,    -44.97,    -13.03,          48.50,  +4.04,  +2.54
  0,     UK002C,       0,  0.013591, 2459521.652462531347, 173.76727,  29.13517,               79.20558,  29.54496,        79.19457,       29.54330,    173.76727,     +29.13517,     173.77647,      +29.14072,  -580141.53,  3991825.73,  5060961.71,      51.628286,       +0.759624,  106749.04,  210966.44,       0.00,              614.87,   155.24,      0.00,           57512.92,    -27.00,    -23.52,          35.01,  +2.42,  +0.80
  1,     UK002C,       0,  0.053943, 2459521.652462998405, 174.02077,  28.79771,               79.29571,  29.14885,        79.27323,       29.14546,    174.02077,     +28.79771,     174.03970,      +28.80904,  -579683.37,  3990924.34,  5059258.48,      51.625577,       +0.754856,  104819.08,  209649.04,    1980.75,             2595.63,  -139.74,  49086.89,           57512.92,    -54.97,    -47.91,          71.74,  +1.53,  -0.08
  2,     UK002C,       0,  0.094359, 2459521.652463466395, 174.34169,  28.41584,               79.37054,  28.67884,        79.36490,       28.67799,    174.34169,     +28.41584,     174.34679,      +28.41869,  -579152.58,  3989880.09,  5057285.30,      51.622437,       +0.749355,  102583.24,  208137.61,    4275.46,             4890.33,  -124.39,  56777.07,           57512.92,    -13.76,    -11.98,          18.08,  +1.90,  +0.31
  3,     UK002C,       0,  0.134855, 2459521.652463934850, 174.70755,  27.94706,               79.47865,  28.11785,        79.47384,       28.11713,    174.70755,     +27.94706,     174.71213,      +27.94949,  -578526.14,  3988647.63,  5054956.49,      51.618728,       +0.742890,   99944.48,  206374.25,    6983.73,             7598.60,   300.02,  66877.61,           57512.92,    -11.68,    -10.18,          15.49,  +2.43,  +0.86
  0,     UK002F,       1,  0.015709, 2459521.652462559752, 155.61360,  21.33550,              100.48181,  35.36856,       100.43564,       35.35865,    155.61360,     +21.33550,     155.65126,      +21.35252,  -580121.35,  3991786.03,  5060886.70,      51.628166,       +0.759411,  106664.04,  181269.48,       0.00,              702.11,   122.99,      0.00,           57226.96,    -50.95,   -112.14,         140.15,  +1.91,  +0.62
  1,     UK002F,       1,  0.056009, 2459521.652463026345, 155.81152,  20.90902,              100.64961,  34.92455,       100.58109,       34.90984,    155.81152,     +20.90902,     155.86772,      +20.93433,  -579657.13,  3990872.74,  5059160.97,      51.625422,       +0.754582,  104708.58,  179893.14,    2006.93,             2709.03,  -142.89,  49799.66,           57226.96,    -75.35,   -166.06,         209.08,  +0.89,  -0.39
  2,     UK002F,       1,  0.096393, 2459521.652463493869, 156.08322,  20.39859,              100.81641,  34.37107,       100.75722,       34.35837,    156.08322,     +20.39859,     156.13214,      +20.42051,  -579096.93,  3989770.59,  5057078.40,      51.622108,       +0.748786,  102348.80,  178250.13,    4428.84,             5130.94,     1.47,  59972.07,           57226.96,    -64.92,   -143.01,         181.74,  +1.08,  -0.18
  3,     UK002F,       1,  0.136785, 2459521.652463961393, 156.35320,  19.86505,              100.99854,  33.79996,       100.93723,       33.78681,    156.35320,     +19.86505,     156.40421,      +19.88783,  -578527.26,  3988649.83,  5054960.64,      51.618735,       +0.742891,   99949.19,  176597.95,    6891.66,             7593.77,   186.30,  60973.10,           57226.96,    -67.03,   -147.70,         189.44,  +2.04,  +0.81
  4,     UK002F,       1,  0.177137, 2459521.652464428451, 156.59809,  19.39964,              101.14580,  33.29524,       101.09374,       33.28408,    156.59809,     +19.39964,     156.64179,      +19.41904,  -578034.73,  3987680.84,  5053129.68,      51.615816,       +0.737770,   97874.55,  175183.62,    9020.97,             9723.08,    39.87,  52768.39,           56801.66,    -56.79,   -125.06,         161.72,  +4.99,  +3.77
  0,     UK0041,       0,  0.001484, 2459521.652462387457,  87.15107,   5.20235,              195.49711,  41.60659,       195.49880,       41.60676,     87.15107,      +5.20235,      87.14985,       +5.20273,  -580260.53,  3992059.85,  5061404.09,      51.628989,       +0.760870,  107250.31,  159792.39,       0.00,              100.41,   323.56,      0.00,           54727.86,     -3.19,      1.57,           4.59,  +2.86,  +1.84
  1,     UK0041,       0,  0.042012, 2459521.652462856378,  86.97143,   4.62033,              195.60568,  41.00315,       195.61488,       41.00411,     86.97143,      +4.62033,      86.96488,       +4.62241,  -579804.84,  3991163.33,  5059710.07,      51.626295,       +0.756127,  105330.78,  158780.87,    1970.05,             2070.46,     7.95,  48609.65,           54727.86,    -17.42,      8.59,          25.23,  +1.03,  +0.03
  2,     UK0041,       0,  0.082628, 2459521.652463326696,  86.75758,   3.93998,              195.73557,  40.29701,       195.74734,       40.29823,     86.75758,      +3.93998,      86.74925,       +3.94267,  -579278.33,  3990127.49,  5057752.77,      51.623181,       +0.750669,  103112.94,  157634.42,    4246.27,             4346.68,    -6.46,  56042.51,           54727.86,    -22.35,     11.02,          32.60,  +1.06,  +0.07
  3,     UK0041,       0,  0.123292, 2459521.652463797480,  86.51204,   3.21660,              195.89443,  39.54302,       195.88586,       39.54214,     86.51204,      +3.21660,      86.51892,       +3.21463,  -578722.74,  3989034.41,  5055687.34,      51.619892,       +0.744916,  100772.61,  156451.34,    6648.25,             6748.66,   102.18,  59068.84,           54727.86,     16.32,     -8.04,          23.98,  +1.64,  +0.67
  4,     UK0041,       0,  0.163900, 2459521.652464267332,  86.27982,   2.54989,              196.04569,  38.84693,       196.01165,       38.84340,     86.27982,      +2.54989,      86.30606,       +2.54197,  -578216.72,  3988038.89,  5053806.23,      51.616895,       +0.739658,   98641.14,  155398.57,    8835.88,             8936.28,    -0.37,  53871.82,           55034.91,     65.07,    -32.00,          96.26,  +2.31,  +1.35
  0,     UK004P,       0,  0.000000, 2459521.652462378144, 202.42398,  76.02247,               19.46549,  45.47120,        19.45184,       45.47304,    202.42398,     +76.02247,     202.43668,      +76.03172,  -580292.82,  3992123.38,  5061524.14,      51.629180,       +0.761198,  107386.34,  149356.94,       0.00,               39.20,   346.04,      0.00,           54065.22,    -20.84,     14.53,          35.08,  +2.54,  +1.67
  1,     UK004P,       0,  0.040368, 2459521.652462845203, 204.17375,  75.88354,               19.33453,  45.03399,        19.32623,       45.03511,    204.17375,     +75.88354,     204.18230,      +75.88915,  -579796.14,  3991146.22,  5059677.73,      51.626244,       +0.756043,  105294.13,  147546.04,    2147.27,             2108.07,   138.27,  53192.34,           54065.22,    -12.61,      8.80,          21.50,  +1.08,  +0.24
  2,     UK004P,       0,  0.080744, 2459521.652463312726, 205.92820,  75.72542,               19.20628,  44.58475,        19.19935,       44.58568,    205.92820,     +75.72542,     205.93608,      +75.73009,  -579298.92,  3990167.99,  5057829.30,      51.623303,       +0.750881,  103199.66,  145742.36,    4296.88,             4257.68,    10.79,  53239.93,           54065.22,    -10.47,      7.31,          18.08,  +0.96,  +0.14
  3,     UK004P,       0,  0.121152, 2459521.652463780250, 207.78485,  75.54341,               19.06555,  44.09980,        19.06478,       44.09991,    207.78485,     +75.54341,     207.78625,      +75.54392,  -578775.17,  3989137.56,  5055882.25,      51.620203,       +0.745449,  100993.45,  143852.92,    6561.20,             6522.00,    -3.80,  56036.23,           54065.22,     -1.16,      0.81,           2.03,  +1.44,  +0.65
  4,     UK004P,       0,  0.161568, 2459521.652464248240, 209.61313,  75.33627,               18.93557,  43.60448,        18.92999,       43.60523,    209.61313,     +75.33627,     209.62074,      +75.33999,  -578255.71,  3988115.59,  5053951.16,      51.617126,       +0.740057,   98805.36,  141989.85,    8806.94,             8767.74,   -37.41,  55565.70,           54535.25,     -8.35,      5.83,          14.80,  +1.82,  +1.06
  5,     UK004P,       0,  0.202096, 2459521.652464717161, 211.91233,  75.07617,               18.73768,  42.97878,        18.76314,       42.97534,    211.91233,     +75.07617,     211.87932,      +75.05937,  -577613.85,  3986852.79,  5051565.03,      51.613321,       +0.733431,   96101.71,  139704.04,   11581.88,            11542.68,   451.86,  68469.64,           56667.17,     37.83,    -26.48,          68.17,  +2.65,  +1.92

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.