Orbital Analysis for matched events on 20210816_021318.549_UK

Summary for Event
-----------------
shower ID 12 KCG
Lg 306.76° Bg 77.90° Vg 24.76km/s
mass 0.27734g, abs. mag -1.0
Path Details
------------
start -3.48° 52.95° 92.56km
end   -3.40° 52.91° 83.47km

Orbit Details
-------------
Semimajor axis 4.81A.U., eccentricity 0.79, inclination 38.10°, Period 10.55Y, LA Sun 143.16°, last Perihelion 2011-02-10

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: 2459442.592575803865
Time: 2021-08-16 02:13:18.553678 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001Z and UK0027
 Convergence angle = 13.17296 deg
 R.A. = 288.00497  Dec = +57.36585 deg
Intersection 2 - Stations: UK001Z and UK003F
 Convergence angle = 26.25647 deg
 R.A. = 292.55837  Dec = +54.65497 deg
Intersection 3 - Stations: UK0027 and UK003F
 Convergence angle = 13.13708 deg
 R.A. = 298.30158  Dec = +53.09365 deg

Best intersection: Stations UK001Z and UK003F with Qconv = 26.26 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3889433.93 +/- 194.28 m
 Y =   -371908.20 +/- 198.78 m
 Z =   5141287.79 +/- 415.25 m
 Vx =     4103.15 +/- 975.86 m/s
 Vy =   -14234.10 +/- 274.77 m/s
 Vz =    22741.21 +/- 1117.54 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+4.619653e+04, +2.987700e+04, -7.461837e+04, +1.410153e+05, +9.094216e+04, -2.332977e+05
+2.987700e+04, +4.409030e+04, -8.951221e+04, +9.823977e+04, +7.591919e+04, -1.829029e+05
-7.461837e+04, -8.951221e+04, +2.032242e+05, -2.574753e+05, -1.625382e+05, +4.741005e+05
+1.410153e+05, +9.823977e+04, -2.574753e+05, +4.753384e+05, +2.754708e+05, -8.002651e+05
+9.094216e+04, +7.591919e+04, -1.625382e+05, +2.754708e+05, +2.217446e+05, -4.776302e+05
-2.332977e+05, -1.829029e+05, +4.741005e+05, -8.002651e+05, -4.776302e+05, +1.440423e+06

Timing offsets (from input data):
    UK001Z: -0.000660 s
    UK0027: 0.000000 s
    UK003F: 0.000719 s

Reference point on the trajectory:
  Time: 2021-08-16 02:13:18.553678 UTC
  Lon     = +-3.487565 +/- 0.0031 deg
  Lat     = +52.949177 +/- 0.0032 deg
  Lat geo = +52.766609 +/- 0.0032 deg
  Ht      =   92854.07 +/- 271.77 m

  JD dynamic   = 2459442.593376593664 
  LST apparent = 354.5379761437 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 286.08025 +/- 2.7011 deg
  Dec       = +56.91966 +/- 1.1365 deg
  Azimuth   = 304.19082 +/- 2.7454 deg
  Elevation = +52.13783 +/- 1.0403 deg
  Vavg      =  26.60840 +/- 0.9063 km/s
  Vinit     =  27.14053 +/- 0.9629 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 286.49225 +/- 2.7011 deg
  Dec       = +57.39027 +/- 1.1365 deg
  Azimuth   = 304.74941 +/- 2.7454 deg
  Elevation = +52.53140 +/- 1.0403 deg
  Vavg      =  26.46487 +/- 0.9063 km/s
  Vinit     =  26.99700 +/- 0.9629 km/s
Radiant (geocentric, J2000):
  R.A.   = 283.01023 +/- 2.6148 deg
  Dec    = +56.12734 +/- 1.1931 deg
  Vg     =  24.76202 +/- 1.0676 km/s
  Vinf   =  27.14053 +/- 0.9629 km/s
  Zc     =  37.96502 +/- 1.0469 deg
  Zg     =  39.77126 +/- 0.9630 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 306.75596 +/- 3.5596 deg
  Bg     = +77.89649 +/- 1.7066 deg
  Vh     =  39.59334 +/- 0.8550 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 242.92430 +/- 0.9002 deg
  Bh     = +37.69862 +/- 1.3305 deg
  Vh_x   =  14.25937 +/- 0.5152 km/s
  Vh_y   =  27.89443 +/- 0.2078 km/s
  Vh_z   = -24.21164 +/- 1.2076 km/s
Orbit:
  La Sun = 143.159178 +/- 0.0000 deg
  a      =   4.809546 +/- 1.0192 AU
  e      =   0.793736 +/- 0.0698
  i      =  38.103480 +/- 1.2557 deg
  peri   = 197.443339 +/- 3.5865 deg
  node   = 143.164775 +/- 0.0002 deg
  Pi     = 340.608114 +/- 3.5867 deg
  q      =   0.992035 +/- 0.0083 AU
  f      = 342.551315 +/- 3.5867 deg
  M      = 358.762626 +/- 1.7056 deg
  Q      =   8.627056 +/- 2.0311 AU
  n      =   0.093443 +/- 0.0605 deg/day
  T      =  10.547675 +/- 3.1299 years
  Last perihelion JD = 2455603.230000 (2011-02-10 17:31:12.026753) +/- 1145.7727 days
  Tj     =   2.002332 +/- 0.3769
Shower association:
  IAU No.  =   12
  IAU code =  KCG

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +6.046323e-03, +6.893296e-04, -1.008712e+02, -2.941593e-07, -5.257060e-03, +1.797576e-03
q   , +6.893296e-04, +8.473449e-05, -1.077429e+01, -3.566883e-08, -6.399730e-04, +2.176325e-04
Tp  , -1.008712e+02, -1.077429e+01, +1.909117e+06, +4.703110e-03, +8.295386e+01, -2.900487e+01
node, -2.941593e-07, -3.566883e-08, +4.703110e-03, +1.590635e-11, +2.693820e-07, -9.698444e-08
peri, -5.257060e-03, -6.399730e-04, +8.295386e+01, +2.693820e-07, +4.840487e-03, -1.644206e-03
i   , +1.797576e-03, +2.176325e-04, -2.900487e+01, -9.698444e-08, -1.644206e-03, +5.918432e-04

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.000000
 a2 = 55.973537

Mean time residuals from time vs. length:
  Station with reference time: UK0027
  Avg. res. = 1.164e-05 s
  Stddev    = 3.41e-03 s

Begin point on the trajectory:
  Lon =    -3.484807 +/- 0.0027 deg
  Lat =    52.948046 +/- 0.0030 deg
  Ht  = 92561.59 +/- 194.92 m
End point on the trajectory:
  Lon =    -3.400809 +/- 0.0007 deg
  Lat =    52.912760 +/- 0.0014 deg
  Ht  = 83467.50 +/- 63.27 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
    UK001Z,   False,    -2.949729,    50.877448,   82.00,   5.893265,   3.646290,    90163.92,    83491.12,          0.016750,     72.31,      5.09,              49.73, 0.5821,    True,    True, {"ff_name": "FF_UK001Z_20210816_021313_118_0547072.fits"}
    UK0027,   False,    -2.374601,    51.371449,   48.00,  10.317054,   1.398632,    91551.83,    83747.44,          0.031450,    114.36,      0.16,              38.69, 0.3908,    True,    True, {"ff_name": "FF_UK0027_20210816_021320_539_0544000.fits"}
    UK003F,   False,    -1.802002,    51.351948,  130.00,   0.006964,  24.016873,    92561.59,    83467.50,          0.029458,    116.00,     10.22,              35.99, 0.3453,    True,    True, {"ff_name": "FF_UK003F_20210816_021314_131_0551424.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,     UK001Z,       0,  0.136551, 2459442.592577036936, 190.56747,  58.41662,              351.43736,  20.02455,       351.45278,       20.03587,    190.56747,     +58.41662,     190.54454,      +58.43035,  3888918.73,  -370120.94,  5138432.36,      52.938760,       -3.462617,   90163.92,  250440.25,       0.00,             3407.82,   116.42,      0.00,           24336.94,      5.63,    -80.18,          66.20,  +2.89,  +0.90
  1,     UK001Z,       0,  0.176663, 2459442.592577501200, 190.30228,  58.32772,              351.56614,  19.91234,       351.55770,       19.90615,    190.30228,     +58.32772,     190.31566,      +58.32023,  3888769.75,  -369604.12,  5137606.65,      52.935745,       -3.455445,   89386.10,  249766.55,     985.44,             4393.26,    13.20,  24567.21,           24336.94,     -3.08,     43.74,          36.21,  +2.79,  +0.80
  2,     UK001Z,       0,  0.216795, 2459442.592577965930, 190.05228,  58.20753,              351.68144,  19.77102,       351.67238,       19.76437,    190.05228,     +58.20753,     190.06680,      +58.19950,  3888607.90,  -369042.63,  5136709.59,      52.932468,       -3.447639,   88541.12,  249036.78,    2056.03,             5463.86,    -5.41,  26676.84,           24336.94,     -3.30,     46.90,          38.94,  +1.80,  -0.18
  3,     UK001Z,       0,  0.256895, 2459442.592578430194, 189.83352,  58.12575,              351.78725,  19.67062,       351.76224,       19.65227,    189.83352,     +58.12575,     189.87244,      +58.10365,  3888480.68,  -368601.33,  5136004.54,      52.929892,       -3.441538,   87877.02,  248465.24,    2897.48,             6305.31,  -252.30,  20983.73,           24336.94,     -9.12,    129.13,         107.47,  +2.34,  +0.36
  4,     UK001Z,       0,  0.297063, 2459442.592578894924, 189.55694,  57.96745,              351.91197,  19.48986,       351.90041,       19.48138,    189.55694,     +57.96745,     189.57562,      +57.95727,  3888287.89,  -367932.53,  5134936.03,      52.925986,       -3.432205,   86870.67,  247601.13,    4172.70,             7580.53,   -67.26,  31747.15,           25563.70,     -4.19,     59.51,          49.69,  +1.67,  -0.30
  5,     UK001Z,       0,  0.337203, 2459442.592579359654, 189.28739,  57.84196,              352.03967,  19.34236,       352.02239,       19.32970,    189.28739,     +57.84196,     189.31495,      +57.82680,  3888118.00,  -367343.17,  5133994.43,      52.922542,       -3.424000,   85983.91,  246842.73,    5296.45,             8704.28,   -32.93,  27995.76,           26261.56,     -6.25,     88.69,          74.30,  +1.77,  -0.19
  6,     UK001Z,       0,  0.377375, 2459442.592579824384, 189.04379,  57.67118,              352.14606,  19.15271,       352.15779,       19.16129,    189.04379,     +57.67118,     189.02736,      +57.68143,  3887930.67,  -366693.30,  5132956.17,      52.918743,       -3.414934,   85006.20,  246009.51,    6535.56,             9943.38,   115.89,  30845.08,           27002.37,      4.21,    -60.02,          50.45,  +1.97,  +0.02
  7,     UK001Z,       0,  0.417511, 2459442.592580289114, 188.79894,  57.54310,              352.26142,  19.00532,       352.27470,       19.01502,    188.79894,     +57.54310,     188.78031,      +57.55467,  3887769.11,  -366132.82,  5132060.71,      52.915464,       -3.407137,   84163.00,  245293.78,    7604.25,            11012.08,    95.27,  26626.78,           27279.59,      4.76,    -67.75,          57.11,  +2.48,  +0.53
  8,     UK001Z,       0,  0.457619, 2459442.592580753379, 188.58753,  57.45003,              352.36459,  18.89556,       352.36762,       18.89778,    188.58753,     +57.45003,     188.58467,      +57.45267,  3887640.37,  -365686.22,  5131347.19,      52.912851,       -3.400957,   83491.12,  244725.56,    8455.80,            11863.62,  -141.73,  21231.32,           27006.03,      1.09,    -15.46,          13.07,  +4.24,  +2.30
  0,     UK0027,       1,  0.000000, 2459442.592575803865, 218.04043,  58.17309,              336.92888,  24.87262,       336.95601,       24.88948,    218.04043,     +58.17309,     218.01389,      +58.19944,  3889481.47,  -372073.12,  5141551.28,      52.950138,       -3.489888,   93102.32,  214179.76,       0.00,              314.46,   729.12,      0.00,           27591.87,     -0.13,   -111.51,         107.39,  +5.49,  +3.84
  1,     UK0027,       1,  0.040056, 2459442.592576267663, 217.96777,  58.11990,              336.93916,  24.80771,       336.99032,       24.83946,    217.96777,     +58.11990,     217.91778,      +58.16954,  3889422.40,  -371868.22,  5141223.90,      52.948945,       -3.487147,   92793.86,  213863.80,     390.71,               76.25,  -596.23,   9753.98,           27591.87,     -0.30,   -209.97,         202.51,  +6.38,  +4.73
  2,     UK0027,       0,  0.080248, 2459442.592576732859, 217.54524,  58.02405,              337.10886,  24.61968,       337.13860,       24.63815,    217.54524,     +58.02405,     217.51616,      +58.05286,  3889184.55,  -371043.08,  5139905.62,      52.944137,       -3.475601,   91551.83,  212581.33,    1964.01,             1649.56,  -113.75,  39144.84,           27591.87,     -0.15,   -121.46,         117.85,  +2.77,  +1.13
  3,     UK0027,       0,  0.120396, 2459442.592577197123, 217.22676,  57.94345,              337.23349,  24.47084,       337.25210,       24.48239,    217.22676,     +57.94345,     217.20874,      +57.96144,  3889002.73,  -370412.36,  5138897.94,      52.940460,       -3.466813,   90602.51,  211604.58,    3166.63,             2852.17,    -0.77,  29954.57,           27591.87,     -0.09,    -75.70,          73.79,  +1.89,  +0.26
  4,     UK0027,       0,  0.160508, 2459442.592577661388, 216.95569,  57.89870,              337.35209,  24.36565,       337.34114,       24.35884,    216.95569,     +57.89870,     216.96729,      +57.88812,  3888859.90,  -369916.85,  5138106.29,      52.937570,       -3.459944,   89856.74,  210839.67,    4111.43,             3796.98,  -144.63,  23554.08,           27406.10,      0.04,     44.45,          43.48,  +1.87,  +0.25
  5,     UK0027,       0,  0.200664, 2459442.592578126118, 216.70822,  57.77089,              337.41786,  24.19216,       337.44812,       24.21092,    216.70822,     +57.77089,     216.67860,      +57.80005,  3888690.19,  -369328.12,  5137165.70,      52.934135,       -3.451751,   88970.74,  209931.94,    5233.97,             4919.51,  -111.95,  27954.40,           27431.39,     -0.16,   -122.26,         120.12,  +1.57,  -0.04
  6,     UK0027,       0,  0.240832, 2459442.592578591313, 216.35916,  57.67916,              337.55547,  24.02669,       337.57347,       24.03784,    216.35916,     +57.67916,     216.34193,      +57.69646,  3888493.49,  -368645.76,  5136075.52,      52.930151,       -3.442227,   87943.91,  208881.73,    6535.05,             6220.59,    98.95,  32390.97,           27972.24,     -0.09,    -72.40,          71.49,  +1.57,  -0.03
  7,     UK0027,       0,  0.280964, 2459442.592579055578, 216.13081,  57.57847,              337.62634,  23.88216,       337.66689,       23.90724,    216.13081,     +57.57847,     216.09069,      +57.61738,  3888346.59,  -368136.13,  5135261.31,      52.927175,       -3.435156,   87177.03,  208100.17,    7506.77,             7192.32,   -18.53,  24213.16,           27884.33,     -0.24,   -162.57,         161.14,  +1.97,  +0.38
  8,     UK0027,       0,  0.321104, 2459442.592579520307, 215.85732,  57.49003,              337.72760,  23.73797,       337.76950,       23.76387,    215.85732,     +57.49003,     215.81577,      +57.53017,  3888186.59,  -367581.09,  5134374.55,      52.923932,       -3.427438,   86341.89,  207250.38,    8565.08,             8250.62,   -49.65,  26365.31,           27742.04,     -0.25,   -167.38,         166.59,  +1.48,  -0.10
  9,     UK0027,       0,  0.361264, 2459442.592579985037, 215.55048,  57.38886,              337.84119,  23.57462,       337.88547,       23.60197,    215.55048,     +57.38886,     215.50638,      +57.43119,  3888007.50,  -366959.81,  5133381.95,      52.920301,       -3.418779,   85407.14,  206300.91,    9749.69,             9435.24,    45.01,  29497.44,           27765.40,     -0.27,   -176.20,         176.17,  +1.46,  -0.11
 10,     UK0027,       0,  0.401392, 2459442.592580449767, 215.21265,  57.34865,              338.00098,  23.45914,       337.99139,       23.45321,    215.21265,     +57.34865,     215.22423,      +57.33949,  3887844.51,  -366394.41,  5132478.64,      52.916995,       -3.410912,   84556.52,  205439.25,   10827.75,            10513.30,    33.97,  26865.57,           27737.25,      0.04,     38.03,          38.18,  +2.93,  +1.37
 11,     UK0027,       0,  0.441536, 2459442.592580914032, 214.96246,  57.24254,              338.08385,  23.30505,       338.09260,       23.31046,    214.96246,     +57.24254,     214.95519,      +57.25088,  3887689.48,  -365856.60,  5131619.40,      52.913848,       -3.403437,   83747.44,  204621.67,   11853.21,            11538.75,   -30.10,  25544.47,           27636.68,     -0.04,    -34.57,          34.85,  +2.98,  +1.43
  0,     UK003F,       0,  0.036578, 2459442.592575852759, 229.34173,  51.81304,              327.64807,  22.46593,       327.69643,       22.48724,    229.34173,     +51.81304,     229.29952,      +51.85512,  3889377.92,  -371713.91,  5140977.38,      52.948046,       -3.484807,   92561.59,  232368.49,       0.00,              370.47,  -207.61,      0.00,           28656.39,    -17.71,   -199.98,         178.21,  +3.19,  +1.36
  1,     UK003F,       0,  0.076698, 2459442.592576317023, 229.07295,  51.75101,              327.76333,  22.32402,       327.77521,       22.32926,    229.07295,     +51.75101,     229.06271,      +51.76135,  3889179.73,  -371026.35,  5139878.89,      52.944039,       -3.475213,   91526.65,  231269.27,    1310.99,             1681.46,    14.51,  32676.76,           28656.39,     -4.32,    -48.97,          43.84,  +2.27,  +0.45
  2,     UK003F,       0,  0.116810, 2459442.592576781288, 228.92309,  51.66197,              327.79626,  22.19902,       327.83149,       22.21454,    228.92309,     +51.66197,     228.89247,      +51.69257,  3889037.22,  -370531.98,  5139089.06,      52.941157,       -3.468362,   90782.55,  230481.85,    2253.62,             2624.09,  -131.53,  23499.88,           28656.39,    -12.81,   -144.72,         130.02,  +1.54,  -0.27
  3,     UK003F,       0,  0.156938, 2459442.592577246018, 228.67393,  51.58768,              327.89435,  22.05346,       327.90831,       22.05962,    228.67393,     +51.58768,     228.66212,      +51.59980,  3888846.06,  -369868.85,  5138029.61,      52.937290,       -3.459113,   89784.52,  229425.45,    3518.02,             3888.49,    43.78,  31509.13,           28656.39,     -5.05,    -57.16,          51.59,  +1.06,  -0.74
  4,     UK003F,       0,  0.197062, 2459442.592577710282, 228.45565,  51.50404,              327.97010,  21.91032,       327.97984,       21.91461,    228.45565,     +51.50404,     228.44770,      +51.51248,  3888668.83,  -369254.02,  5137047.32,      52.933702,       -3.450549,   88859.24,  228448.21,    4690.33,             5060.80,   127.11,  29217.31,           28882.06,     -3.51,    -39.74,          36.02,  +1.28,  -0.51
  5,     UK003F,       0,  0.237162, 2459442.592578174546, 228.26603,  51.44424,              328.04369,  21.79691,       328.03841,       21.79458,    228.26603,     +51.44424,     228.27155,      +51.43966,  3888523.42,  -368749.58,  5136241.39,      52.930758,       -3.443552,   88100.13,  227648.78,    5652.17,             6022.64,     0.61,  23985.91,           28247.45,      1.89,     21.48,          19.54,  +1.21,  -0.58
  6,     UK003F,       0,  0.277282, 2459442.592578638811, 228.06112,  51.36072,              328.11284,  21.65839,       328.10652,       21.65560,    228.06112,     +51.36072,     228.06775,      +51.35525,  3888356.23,  -368169.60,  5135314.78,      52.927371,       -3.435481,   87227.40,  226730.28,    6758.03,             7128.50,    17.59,  27563.82,           27947.52,      2.26,     25.62,          23.40,  +0.98,  -0.80
  7,     UK003F,       0,  0.317414, 2459442.592579103075, 227.84357,  51.27088,              328.18615,  21.51035,       328.17922,       21.50730,    227.84357,     +51.27088,     227.85093,      +51.26489,  3888179.30,  -367555.82,  5134334.17,      52.923785,       -3.426928,   86303.88,  225759.67,    7928.34,             8298.81,    98.70,  29161.65,           27923.75,      2.47,     28.01,          25.69,  +1.19,  -0.58
  8,     UK003F,       0,  0.357522, 2459442.592579567339, 227.66540,  51.19090,              328.24300,  21.38369,       328.23987,       21.38231,    227.66540,     +51.19090,     227.66954,      +51.18820,  3888031.52,  -367043.13,  5133515.08,      52.920788,       -3.419812,   85532.50,  224951.28,    8905.89,             9276.36,   -12.31,  24372.80,           27675.99,      1.11,     12.60,          11.59,  +1.17,  -0.59
  9,     UK003F,       0,  0.397626, 2459442.592580031604, 227.46000,  51.12988,              328.32652,  21.26426,       328.30229,       21.25357,    227.46000,     +51.12988,     227.48328,      +51.10897,  3887880.40,  -366518.92,  5132677.56,      52.917723,       -3.412531,   84743.81,  224125.91,    9905.43,            10275.90,  -101.21,  24923.68,           27399.79,      8.57,     97.35,          89.94,  +1.35,  -0.40
 10,     UK003F,       0,  0.437746, 2459442.592580495868, 227.32805,  51.02408,              328.34316,  21.13075,       328.35823,       21.13738,    227.32805,     +51.02408,     227.31614,      +51.03706,  3887745.06,  -366049.39,  5131927.42,      52.914976,       -3.406026,   84037.43,  223388.39,   10800.69,            11171.15,  -294.83,  22314.53,           27017.97,     -5.34,    -60.36,          55.95,  +2.78,  +1.03
 11,     UK003F,       0,  0.477790, 2459442.592580959201, 227.11657,  51.03845,              328.47292,  21.07383,       328.40305,       21.04294,    227.11657,     +51.03845,     227.18145,      +50.97818,  3887635.86,  -365670.57,  5131322.20,      52.912760,       -3.400809,   83467.50,  222795.24,   11522.99,            11893.45,  -659.35,  18037.65,           26453.00,     24.50,    279.49,         259.74,  +4.04,  +2.30

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.