Orbital Analysis for matched events on 20211015_204454.697_UK

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Summary for Event
-----------------
shower ID -1 spo
Lg 76.58° Bg 69.50° Vg 34.98km/s
mass 0.02357g, abs. mag 1.1
best visual mag 1.4
Path Details
------------
start 0.73° 53.46° 100.33km
end   0.73° 53.40° 87.53km

Orbit Details
-------------
Semimajor axis 3.55A.U., eccentricity 0.73, inclination 58.69°, Period 6.69Y, LA Sun 202.42°, last Perihelion 2015-02-25

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: 2459503.364521957934
Time: 2021-10-15 20:44:54.697165 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK0026 and UK002K
 Convergence angle = 32.89057 deg
 R.A. = 331.20581  Dec = +83.43670 deg
Intersection 2 - Stations: UK0026 and UK0032
 Convergence angle = 1.24216 deg
 R.A. = 228.97879  Dec = -62.13773 deg
Intersection 3 - Stations: UK002K and UK0032
 Convergence angle = 31.79004 deg
 R.A. = 322.56323  Dec = +83.94796 deg

Best intersection: Stations UK0026 and UK002K with Qconv = 32.89 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3546104.68 +/- 34.53 m
 Y =  -1537749.07 +/- 26.46 m
 Z =   5182039.15 +/- 36.47 m
 Vx =     3361.31 +/- 205.94 m/s
 Vy =    -2359.01 +/- 116.79 m/s
 Vz =    36470.95 +/- 378.80 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.333581e+03, +7.819034e+02, +1.294051e+03, +6.254365e+03, +3.399900e+03, +1.040063e+04
+7.819034e+02, +7.096149e+02, +6.781971e+02, +3.740377e+03, +2.811026e+03, +7.768490e+03
+1.294051e+03, +6.781971e+02, +1.367227e+03, +6.279330e+03, +3.195228e+03, +9.588096e+03
+6.254365e+03, +3.740377e+03, +6.279330e+03, +4.001338e+04, +1.949042e+04, +6.754358e+04
+3.399900e+03, +2.811026e+03, +3.195228e+03, +1.949042e+04, +1.276715e+04, +3.688692e+04
+1.040063e+04, +7.768490e+03, +9.588096e+03, +6.754358e+04, +3.688692e+04, +1.358077e+05

Timing offsets (from input data):
    UK0026: 0.000163 s
    UK002K: 0.000000 s
    UK0032: -0.000006 s

Reference point on the trajectory:
  Time: 2021-10-15 20:44:54.697165 UTC
  Lon     = ++0.730804 +/- 0.0005 deg
  Lat     = +53.462960 +/- 0.0001 deg
  Lat geo = +53.281553 +/- 0.0001 deg
  Ht      =  100337.91 +/- 43.16 m

  JD dynamic   = 2459503.365322698839 
  LST apparent = 336.5562950791 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 324.93831 +/- 3.0401 deg
  Dec       = +83.57575 +/- 0.1071 deg
  Azimuth   = 357.43781 +/- 0.5700 deg
  Elevation = +59.73172 +/- 0.1891 deg
  Vavg      =  35.78939 +/- 0.2936 km/s
  Vinit     =  36.70141 +/- 0.3737 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 328.83822 +/- 3.0401 deg
  Dec       = +83.64923 +/- 0.1071 deg
  Azimuth   = 358.31041 +/- 0.5700 deg
  Elevation = +59.74582 +/- 0.1891 deg
  Vavg      =  35.78412 +/- 0.2936 km/s
  Vinit     =  36.69614 +/- 0.3737 km/s
Radiant (geocentric, J2000):
  R.A.   = 323.58753 +/- 3.5493 deg
  Dec    = +84.20263 +/- 0.1112 deg
  Vg     =  34.98117 +/- 0.3929 km/s
  Vinf   =  36.70141 +/- 0.3737 km/s
  Zc     =  30.44951 +/- 0.1890 deg
  Zg     =  31.19793 +/- 0.2083 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  76.58051 +/- 0.7304 deg
  Bg     = +69.49628 +/- 0.2637 deg
  Vh     =  39.11180 +/- 0.2375 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 313.47685 +/- 0.8193 deg
  Bh     = +56.90409 +/- 0.3366 deg
  Vh_x   = -14.69471 +/- 0.1994 km/s
  Vh_y   =  15.49753 +/- 0.2449 km/s
  Vh_z   = -32.76621 +/- 0.3192 km/s
Orbit:
  La Sun = 202.418502 +/- 0.0000 deg
  a      =   3.550906 +/- 0.2052 AU
  e      =   0.732029 +/- 0.0204
  i      =  58.689464 +/- 0.4515 deg
  peri   = 206.863085 +/- 0.4475 deg
  node   = 202.418807 +/- 0.0000 deg
  Pi     =  49.281892 +/- 0.4475 deg
  q      =   0.951541 +/- 0.0020 AU
  f      = 333.135772 +/- 0.4475 deg
  M      = 357.077942 +/- 0.3173 deg
  Q      =   6.150271 +/- 0.4122 AU
  n      =   0.147298 +/- 0.0173 deg/day
  T      =   6.691283 +/- 0.5473 years
  Last perihelion JD = 2457079.169432 (2015-02-25 16:03:58.894969) +/- 199.7907 days
  Tj     =   2.050507 +/- 0.1120
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +4.247300e-04, -3.780786e-05, -4.222841e+00, -2.111389e-07, +7.308196e-03, +8.913953e-03
q   , -3.780786e-05, +4.117668e-06, +3.810043e-01, +1.918308e-08, -8.901104e-04, -8.107491e-04
Tp  , -4.222841e+00, +3.810043e-01, +4.223176e+04, +2.098967e-03, -7.411869e+01, -8.864774e+01
node, -2.111389e-07, +1.918308e-08, +2.098967e-03, +1.129927e-10, -3.762919e-06, -4.769047e-06
peri, +7.308196e-03, -8.901104e-04, -7.411869e+01, -3.762919e-06, +2.022112e-01, +1.591173e-01
i   , +8.913953e-03, -8.107491e-04, -8.864774e+01, -4.769047e-06, +1.591173e-01, +2.012915e-01

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.505874
 a2 = 15.913706

Mean time residuals from time vs. length:
  Station with reference time: UK002K
  Avg. res. = 1.928e-06 s
  Stddev    = 1.39e-03 s

Begin point on the trajectory:
  Lon =     0.730807 +/- 0.0005 deg
  Lat =    53.462927 +/- 0.0001 deg
  Ht  = 100331.55 +/- 38.84 m
End point on the trajectory:
  Lon =     0.733877 +/- 0.0006 deg
  Lat =    53.396773 +/- 0.0002 deg
  Ht  = 87533.25 +/- 88.04 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
    UK0026,   False,    -0.023645,    52.984073,    6.00,   0.900510,  14.265584,    99956.23,    87533.25,          0.024169,     41.11,     27.47,              25.31, 0.1827,    True,    True, {"ff_name": "FF_UK0026_20211015_204448_361_0058624.fits"}
    UK002K,   False,    -0.382860,    53.537770,   34.00,   0.075629,  21.083862,   100331.55,    87938.26,          0.006845,      8.61,     11.48,              49.79, 0.5833,    True,    True, {"ff_name": "FF_UK002K_20211015_204445_247_0276736.fits"}
    UK0032,   False,    -0.023645,    52.984073,    6.00,   1.473950,  12.874838,    99907.77,    88667.96,          0.021482,     38.33,     25.52,              25.31, 0.1827,    True,    True, {"ff_name": "FF_UK0032_20211015_204447_655_0279296.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,     UK0026,       0,  0.016045, 2459503.364522536285,  47.68300,  64.46503,               43.20525,  53.24313,        43.20812,       53.24588,     47.68300,     +64.46503,      47.67594,      +64.46419,  3546064.20, -1537720.67,  5181600.00,      53.460991,       +0.730743,   99956.23,  124215.32,       0.00,              441.92,   -61.25,      0.00,           37972.11,     -3.90,      5.85,          11.68,  +3.00,  +2.53
  1,     UK0026,       0,  0.056105, 2459503.364523000084,  47.85950,  64.18415,               43.61475,  53.08671,        43.61972,       53.09143,     47.85950,     +64.18415,      47.84749,      +64.18273,  3545929.10, -1537625.85,  5180134.13,      53.454419,       +0.731068,   98682.24,  122880.61,    1475.13,             1917.06,   -56.37,  36823.14,           37972.11,     -6.64,      9.95,          20.08,  +3.23,  +2.78
  2,     UK0026,       0,  0.096137, 2459503.364523463417,  47.96083,  63.86829,               44.09232,  52.94814,        44.06426,       52.92171,     47.96083,     +63.86829,      48.03032,      +63.87620,  3545785.47, -1537525.05,  5178575.70,      53.447428,       +0.731425,   97327.89,  121465.49,    3043.41,             3485.33,    42.67,  39175.45,           37972.11,     36.99,    -55.29,         112.96,  +3.16,  +2.74
  3,     UK0026,       0,  0.136205, 2459503.364523927215,  48.16213,  63.57068,               44.51424,  52.77030,        44.49655,       52.75380,     48.16213,     +63.57068,      48.20563,      +63.57558,  3545647.79, -1537428.42,  5177081.87,      53.440724,       +0.731760,   96029.75,  120112.36,    4546.68,             4988.60,    75.39,  37518.04,           37972.11,     22.91,    -34.27,          70.79,  +2.30,  +1.90
  4,     UK0026,       0,  0.176309, 2459503.364524391480,  48.44993,  63.30052,               44.86769,  52.56150,        44.90246,       52.59356,     48.44993,     +63.30052,      48.36803,      +63.29099,  3545520.18, -1537338.86,  5175697.27,      53.434509,       +0.732058,   94826.59,  118861.03,    5940.03,             6381.95,    -3.13,  34743.38,           37320.19,    -44.16,     66.30,         138.24,  +2.13,  +1.75
  5,     UK0026,       0,  0.216317, 2459503.364524854347,  48.47566,  62.98338,               45.35328,  52.44598,        45.32799,       52.42278,     48.47566,     +62.98338,      48.53616,      +62.99019,  3545388.31, -1537246.32,  5174266.48,      53.428083,       +0.732372,   93583.37,  117571.47,    7379.86,             7821.78,   -31.65,  35988.55,           36944.13,     31.77,    -47.51,         100.26,  +1.91,  +1.56
  6,     UK0026,       0,  0.256397, 2459503.364525318146,  48.69104,  62.67784,               45.76985,  52.25033,        45.76384,       52.24488,     48.69104,     +62.67784,      48.70615,      +62.67943,  3545255.16, -1537152.87,  5172821.67,      53.421592,       +0.732690,   92328.02,  116272.88,    8833.80,             9275.72,   -48.71,  36275.94,           36738.14,      7.41,    -11.10,          23.67,  +1.81,  +1.48
  7,     UK0026,       0,  0.296433, 2459503.364525781944,  48.78041,  62.35909,               46.23444,  52.10158,        46.19491,       52.06594,     48.78041,     +62.35909,      48.87209,      +62.36941,  3545125.24, -1537061.69,  5171412.07,      53.415256,       +0.732997,   91103.34,  115009.38,   10252.31,            10694.23,   -99.58,  35430.83,           36543.44,     48.16,    -71.95,         155.28,  +1.53,  +1.23
  8,     UK0026,       0,  0.336525, 2459503.364526245743,  49.01984,  62.05631,               46.63047,  51.89020,        46.62430,       51.88469,     49.01984,     +62.05631,      49.03528,      +62.05790,  3544997.56, -1536972.08,  5170026.70,      53.409028,       +0.733295,   89899.76,  113771.05,   11646.44,            12088.36,  -176.88,  34773.28,           36334.44,      7.39,    -11.06,          24.11,  +1.82,  +1.54
  9,     UK0026,       0,  0.376589, 2459503.364526709542,  49.17376,  61.69496,               47.13267,  51.69184,        47.11313,       51.67456,     49.17376,     +61.69496,      49.21874,      +61.69991,  3544854.49, -1536871.68,  5168474.41,      53.402045,       +0.733650,   88551.26,  112388.47,   13208.53,            13650.46,   -85.19,  38990.07,           36372.94,     23.00,    -34.41,          75.96,  +1.58,  +1.33
 10,     UK0026,       0,  0.416649, 2459503.364527173340,  49.31560,  61.42034,               47.50342,  51.52760,        47.48557,       51.51193,     49.31560,     +61.42034,      49.35653,      +61.42480,  3544746.49, -1536795.88,  5167302.53,      53.396773,       +0.733877,   87533.25,  111346.56,   14387.81,            14829.73,  -376.17,  29437.80,           36078.69,     20.74,    -31.03,          69.14,  +4.48,  +4.25
  0,     UK002K,       0,  0.000000, 2459503.364521957934,  24.26636,  37.15842,               95.99815,  52.90269,        95.98328,       52.89500,     24.26636,     +37.15842,      24.28108,      +37.15991,  3546104.00, -1537748.60,  5182031.84,      53.462927,       +0.730807,  100331.55,  125207.04,       0.00,                7.35,    93.05,      0.00,           35731.49,     20.67,    -15.50,          42.56,  +2.62,  +2.13
  1,     UK002K,       0,  0.040412, 2459503.364522425458,  24.36340,  36.63864,               96.54545,  52.49502,        96.54926,       52.49698,     24.36340,     +36.63864,      24.35982,      +36.63826,  3545966.63, -1537652.19,  5180541.37,      53.456245,       +0.731139,   99036.17,  124237.04,    1499.88,             1507.24,   109.76,  37114.79,           35731.49,     -5.26,      3.95,          10.92,  +2.62,  +2.15
  2,     UK002K,       0,  0.080740, 2459503.364522892516,  24.42402,  36.21529,               96.99935,  52.17148,        97.00160,       52.17263,     24.42402,     +36.21529,      24.42214,      +36.21506,  3545856.63, -1537574.99,  5179347.82,      53.450892,       +0.731372,   97998.88,  123466.55,    2700.98,             2708.33,  -169.24,  29783.17,           35731.49,     -3.11,      2.33,           6.49,  +2.98,  +2.52
  3,     UK002K,       0,  0.121220, 2459503.364523360971,  24.51984,  35.60310,               97.63562,  51.69515,        97.64332,       51.69906,     24.51984,     +35.60310,      24.51282,      +35.60234,  3545700.01, -1537465.07,  5177648.42,      53.443267,       +0.731774,   96522.07,  122384.37,    4411.12,             4418.47,    55.22,  42246.53,           35731.49,    -10.54,      7.91,          22.21,  +1.87,  +1.43
  4,     UK002K,       0,  0.161628, 2459503.364523828495,  24.58755,  35.08144,               98.17887,  51.29416,        98.17891,       51.29418,     24.58755,     +35.08144,      24.58819,      +35.08144,  3545568.91, -1537373.06,  5176225.94,      53.436882,       +0.732083,   95285.98,  121488.49,    5842.58,             5849.94,     3.66,  35425.23,           36124.84,     -0.05,      0.04,           0.11,  +1.91,  +1.49
  5,     UK002K,       0,  0.202032, 2459503.364524296485,  24.66388,  34.56688,               98.69594,  50.89013,        98.69912,       50.89173,     24.66388,     +34.56688,      24.66163,      +34.56656,  3545441.18, -1537283.42,  5174840.08,      53.430659,       +0.732380,   94081.76,  120625.41,    7237.20,             7244.55,   -84.61,  34516.84,           36007.46,     -4.32,      3.24,           9.24,  +2.24,  +1.83
  6,     UK002K,       0,  0.242516, 2459503.364524764940,  24.75461,  33.95100,               99.30249,  50.40330,        99.30930,       50.40669,     24.75461,     +33.95100,      24.74903,      +33.95033,  3545290.77, -1537177.86,  5173208.11,      53.423328,       +0.732760,   92663.79,  119623.15,    8879.48,             8886.84,    71.86,  40566.27,           36454.97,     -9.20,      6.90,          19.83,  +1.70,  +1.31
  7,     UK002K,       0,  0.282936, 2459503.364525232464,  24.82251,  33.41224,               99.83249,  49.98101,        99.83241,       49.98097,     24.82251,     +33.41224,      24.82377,      +33.41224,  3545161.39, -1537087.06,  5171804.30,      53.417020,       +0.733063,   91444.11,  118771.42,   10292.16,            10299.52,     1.07,  34950.05,           36515.87,      0.11,     -0.08,           0.25,  +1.51,  +1.14
  8,     UK002K,       0,  0.323340, 2459503.364525700454,  24.89716,  32.90357,              100.31385,  49.57355,       100.31917,       49.57617,     24.89716,     +32.90357,      24.89338,      +32.90305,  3545040.61, -1537002.29,  5170493.76,      53.411128,       +0.733335,   90305.52,  117985.49,   11610.99,            11618.34,  -162.99,  32640.91,           36286.05,     -7.15,      5.36,          15.61,  +1.58,  +1.22
  9,     UK002K,       0,  0.363816, 2459503.364526168909,  24.99303,  32.30308,              100.86352,  49.08489,       100.88357,       49.09473,     24.99303,     +32.30308,      24.97528,      +32.30113,  3544899.95, -1536903.58,  5168967.65,      53.404264,       +0.733679,   88979.74,  117083.55,   13146.74,            13154.09,  -112.77,  37942.22,           36259.51,    -26.82,     20.11,          59.05,  +1.57,  +1.23
 10,     UK002K,       0,  0.404188, 2459503.364526635967,  25.03649,  31.82215,              101.32631,  48.71059,       101.32562,       48.71026,     25.03649,     +31.82215,      25.03884,      +31.82221,  3544789.46, -1536826.03,  5167768.78,      53.398871,       +0.733914,   87938.26,  116382.74,   14353.18,            14360.54,  -388.03,  29883.24,           35955.60,      0.92,     -0.69,           2.03,  +2.71,  +2.38
  0,     UK0032,       0,  0.013589, 2459503.364522515796,  47.79866,  64.46665,               43.17822,  53.19595,        43.22418,       53.23986,     47.79866,     +64.46665,      47.68277,      +64.45324,  3546059.06, -1537717.06,  5181544.24,      53.460741,       +0.730769,   99907.77,  124164.87,       0.00,              498.03,    85.00,      0.00,           35188.36,    -62.20,     93.50,         186.55,  +3.66,  +3.19
  1,     UK0032,       0,  0.053813, 2459503.364522980992,  47.92059,  64.17376,               43.61790,  53.05821,        43.64342,       53.08240,     47.92059,     +64.17376,      47.85741,      +64.16643,  3545921.58, -1537620.57,  5180052.49,      53.454053,       +0.731103,   98611.29,  122806.83,    1501.18,             1999.21,   109.90,  37320.48,           35188.36,    -34.04,     51.09,         103.12,  +2.94,  +2.49
  2,     UK0032,       0,  0.094005, 2459503.364523446187,  48.05780,  63.92914,               43.97443,  52.92635,        43.99705,       52.94763,     48.05780,     +63.92914,      48.00272,      +63.92274,  3545806.82, -1537540.03,  5178807.36,      53.448467,       +0.731353,   97529.20,  121675.08,    2754.18,             3252.21,  -112.20,  31175.31,           35188.36,    -29.76,     44.65,          90.97,  +2.56,  +2.13
  3,     UK0032,       0,  0.134249, 2459503.364523912314,  48.21095,  63.61790,               44.42884,  52.76469,        44.44067,       52.77573,     48.21095,     +63.61790,      48.18300,      +63.61460,  3545665.29, -1537440.70,  5177271.69,      53.441576,       +0.731701,   96194.70,  120283.65,    4299.55,             4797.58,   -43.84,  38400.09,           35188.36,    -15.32,     22.97,          47.35,  +2.71,  +2.31
  4,     UK0032,       0,  0.174497, 2459503.364524377976,  48.37738,  63.30704,               44.87503,  52.59444,        44.88263,       52.60146,     48.37738,     +63.30704,      48.36012,      +63.30495,  3545526.34, -1537343.19,  5175764.07,      53.434809,       +0.732040,   94884.64,  118921.23,    5816.70,             6314.73,    -3.85,  37694.97,           35877.71,     -9.68,     14.51,          30.26,  +2.17,  +1.79
  5,     UK0032,       0,  0.214749, 2459503.364524843637,  48.53605,  62.98678,               45.33302,  52.42125,        45.33263,       52.42089,     48.53605,     +62.98678,      48.53802,      +62.98689,  3545386.95, -1537245.36,  5174251.71,      53.428017,       +0.732381,   93570.53,  117558.34,    7338.61,             7836.64,    40.76,  37809.73,           36350.77,      0.49,     -0.74,           1.56,  +1.65,  +1.30
  6,     UK0032,       0,  0.254981, 2459503.364525309298,  48.69160,  62.69894,               45.73731,  52.25729,        45.73619,       52.25628,     48.69160,     +62.69894,      48.69539,      +62.69923,  3545263.46, -1537158.70,  5172911.82,      53.421997,       +0.732663,   92406.35,  116353.58,    8686.97,             9185.00,   -87.45,  33514.54,           36215.74,      1.37,     -2.06,           4.39,  +1.41,  +1.08
  7,     UK0032,       0,  0.295245, 2459503.364525775425,  48.87810,  62.37594,               46.18300,  52.06501,        46.18749,       52.06905,     48.87810,     +62.37594,      48.86924,      +62.37477,  3545127.46, -1537063.24,  5171436.10,      53.415364,       +0.732991,   91124.22,  115030.88,   10172.01,            10670.04,   -80.16,  36882.59,           36215.10,     -5.45,      8.16,          17.59,  +1.35,  +1.05
  8,     UK0032,       0,  0.335509, 2459503.364526241552,  49.04986,  62.04766,               46.63540,  51.87397,        46.63993,       51.87801,     49.04986,     +62.04766,      49.04123,      +62.04650,  3544993.02, -1536968.90,  5169977.50,      53.408806,       +0.733314,   89857.03,  113727.37,   11639.83,            12137.86,   -90.08,  36454.86,           36230.80,     -5.41,      8.11,          17.68,  +1.60,  +1.32
  9,     UK0032,       0,  0.375765, 2459503.364526707679,  49.22818,  61.73478,               47.05768,  51.68241,        47.07002,       51.69331,     49.22818,     +61.73478,      49.20257,      +61.73165,  3544866.88, -1536880.37,  5168608.76,      53.402650,       +0.733606,   88667.96,  112507.52,   13017.23,            13515.26,  -190.14,  34215.95,           36128.83,    -14.51,     21.75,          47.94,  +1.77,  +1.51

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.