Orbital Analysis for matched events on 20210816_222826.708_UK

Summary for Event
-----------------
shower ID 7 PER
Lg 67.97° Bg 42.21° Vg 57.06km/s
mass 0.09646g, abs. mag -1.3
Path Details
------------
start 1.27° 52.27° 109.81km
end   1.13° 52.14° 95.64km

Orbit Details
-------------
Semimajor axis 17.63A.U., eccentricity 0.95, inclination 106.84°, Period 74.03Y, LA Sun 143.97°, last Perihelion 2021-07-27

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: 2459443.436420241836
Time: 2021-08-16 22:28:26.732753 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK002K and UK0032
 Convergence angle = 4.05389 deg
 R.A. =  56.26807  Dec = +63.27304 deg

Best intersection: Stations UK002K and UK0032 with Qconv = 4.05 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   2219676.77 +/- 250.65 m
 Y =  -3300995.05 +/- 129.73 m
 Z =   5109572.22 +/- 18.86 m
 Vx =    16054.01 +/- 976.21 m/s
 Vy =    20680.80 +/- 594.91 m/s
 Vz =    51902.42 +/- 323.47 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+5.721102e+04, -2.945062e+04, +2.169655e+03, +1.941155e+05, -7.425949e+04, +5.075859e+04
-2.945062e+04, +1.534006e+04, -1.035398e+03, -9.811752e+04, +3.777441e+04, -2.604167e+04
+2.169655e+03, -1.035398e+03, +3.789335e+02, +1.978972e+03, -6.525842e+02, +1.106255e+03
+1.941155e+05, -9.811752e+04, +1.978972e+03, +9.146570e+05, -3.523923e+05, +2.085079e+05
-7.425949e+04, +3.777441e+04, -6.525842e+02, -3.523923e+05, +1.366592e+05, -8.061759e+04
+5.075859e+04, -2.604167e+04, +1.106255e+03, +2.085079e+05, -8.061759e+04, +5.047411e+04

Timing offsets (from input data):
    UK002F: 0.000000 s
    UK002K: 0.000000 s
    UK0032: 0.000678 s

Reference point on the trajectory:
  Time: 2021-08-16 22:28:26.732753 UTC
  Lon     = ++1.276568 +/- 0.0020 deg
  Lat     = +52.281907 +/- 0.0017 deg
  Lat geo = +52.098694 +/- 0.0017 deg
  Ht      =  110592.57 +/- 159.27 m

  JD dynamic   = 2459443.437221258879 
  LST apparent = 303.9179345648 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  52.17866 +/- 2.2330 deg
  Dec       = +63.23268 +/- 0.1123 deg
  Azimuth   =  33.02910 +/- 0.9728 deg
  Elevation = +38.31119 +/- 0.6361 deg
  Vavg      =  55.97241 +/- 0.1412 km/s
  Vinit     =  58.13164 +/- 0.3053 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  51.98182 +/- 2.2330 deg
  Dec       = +62.99065 +/- 0.1123 deg
  Azimuth   =  33.33352 +/- 0.9728 deg
  Elevation = +38.21440 +/- 0.6361 deg
  Vavg      =  56.09706 +/- 0.1412 km/s
  Vinit     =  58.25629 +/- 0.3053 km/s
Radiant (geocentric, J2000):
  R.A.   =  52.55569 +/- 2.2299 deg
  Dec    = +62.81091 +/- 0.0993 deg
  Vg     =  57.06294 +/- 0.3111 km/s
  Vinf   =  58.13164 +/- 0.3053 km/s
  Zc     =  51.84248 +/- 0.6377 deg
  Zg     =  52.35918 +/- 0.6510 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  67.97238 +/- 1.3323 deg
  Bg     = +42.20758 +/- 0.2172 deg
  Vh     =  41.25589 +/- 0.1796 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  94.41468 +/- 3.2095 deg
  Bh     = +68.31440 +/- 0.7313 deg
  Vh_x   =   1.17345 +/- 0.9511 km/s
  Vh_y   = -15.19937 +/- 0.2469 km/s
  Vh_z   = -38.33602 +/- 0.3660 km/s
Orbit:
  La Sun = 143.970194 +/- nan deg
  a      =  17.631349 +/- 2.5994 AU
  e      =   0.945967 +/- 0.0142
  i      = 106.837221 +/- 0.3614 deg
  peri   = 151.455538 +/- 3.2093 deg
  node   = 143.969252 +/- 0.0000 deg
  Pi     = 295.424790 +/- 3.2093 deg
  q      =   0.952682 +/- 0.0147 AU
  f      =  28.540572 +/- 3.2093 deg
  M      =   0.267755 +/- 0.2196 deg
  Q      =  34.310017 +/- 5.1849 AU
  n      =   0.013313 +/- 0.0071 deg/day
  T      =  74.033616 +/- 14.1450 years
  Last perihelion JD = 2459423.324901 (2021-07-27 19:47:51.480328) +/- 2.0063 days
  Tj     =  -0.050586 +/- 0.0968
Shower association:
  IAU No.  =    7
  IAU code =  PER

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +1.966914e-04, +1.948855e-04, +2.713839e-02, -5.867339e-09, +7.528745e-04, +8.330604e-05
q   , +1.948855e-04, +2.088884e-04, +2.885818e-02, -6.323089e-09, +8.037777e-04, +8.977511e-05
Tp  , +2.713839e-02, +2.885818e-02, +4.001888e+00, -8.752380e-07, +1.113207e-01, +1.242494e-02
node, -5.867339e-09, -6.323089e-09, -8.752380e-07, +1.943680e-13, -2.436728e-08, -2.759333e-09
peri, +7.528745e-04, +8.037777e-04, +1.113207e-01, -2.436728e-08, +3.098038e-03, +3.459333e-04
i   , +8.330604e-05, +8.977511e-05, +1.242494e-02, -2.759333e-09, +3.459333e-04, +3.917293e-05

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.001950
 a2 = 29.097670

Mean time residuals from time vs. length:
  Station with reference time: UK002K
  Avg. res. = 5.641e-06 s
  Stddev    = 2.38e-03 s

Begin point on the trajectory:
  Lon =     1.268786 +/- 0.0022 deg
  Lat =    52.274565 +/- 0.0012 deg
  Ht  = 109809.51 +/- 184.16 m
End point on the trajectory:
  Lon =     1.126104 +/- 0.0015 deg
  Lat =    52.141078 +/- 0.0015 deg
  Ht  = 95640.62 +/- 113.42 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
    UK002F,    True,    -1.306160,    51.883100,   80.00,   0.000000,   0.000000,   108394.18,    95893.53,          0.042342,       nan,       nan,              37.73, 0.0000,    True,    True, {"ff_name": "FF_UK002F_20210816_222823_204_0214528.fits"}
    UK002K,   False,    -0.382860,    53.537770,   34.00,   0.000022,  39.313726,   109670.63,    95640.62,          0.004414,     16.03,      2.41,              85.43, 1.0000,    True,    True, {"ff_name": "FF_UK002K_20210816_222820_339_0212992.fits"}
    UK0032,   False,    -0.023645,    52.984073,    6.00,   1.097724,  13.925761,   109809.51,    96013.09,          0.008816,     24.28,      1.92,              72.33, 1.0000,    True,    True, {"ff_name": "FF_UK0032_20210816_222821_219_0218624.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,     UK002F,       1,  0.064182, 2459443.436420984566,  21.97035,  31.78407,               75.53843,  29.98526,        75.51424,       29.93604,     21.97035,     +31.78407,      22.02885,      +31.76380,  2218697.19, -3302256.95,  5106405.23,      52.261285,       +1.254551,  108394.18,  211845.93,       0.00,             3547.08,   583.22,      0.00,           54980.47,    131.34,    147.87,         192.57,  +2.56,  +0.93
  1,     UK002F,       1,  0.104234, 2459443.436421448365,  21.82345,  31.48668,               75.88219,  29.86150,        75.85670,       29.80999,     21.82345,     +31.48668,      21.88474,      +31.46551,  2218148.81, -3302963.37,  5104632.34,      52.249733,       +1.242156,  107164.01,  210248.81,    1985.67,             5532.75,   240.60,  49577.24,           54980.47,    136.58,    153.80,         201.80,  +1.75,  +0.14
  2,     UK002F,       1,  0.144318, 2459443.436421912163,  21.66397,  31.11610,               76.29350,  29.69286,        76.27429,       29.65438,     21.66397,     +31.11610,      21.70996,      +31.10034,  2217489.58, -3303812.59,  5102501.06,      52.235838,       +1.227290,  105685.65,  208339.76,    4372.74,             7919.82,   297.52,  59551.79,           54980.47,    101.31,    113.99,         150.98,  +1.17,  -0.42
  3,     UK002F,       1,  0.184378, 2459443.436422375962,  21.49622,  30.77983,               76.68243,  29.55333,        76.66019,       29.50911,     21.49622,     +30.77983,      21.54908,      +30.76174,  2216889.04, -3304586.21,  5100559.51,      52.223173,       +1.213735,  104339.35,  206608.53,    6547.32,            10094.40,   143.35,  54283.00,           54980.47,    115.60,    130.12,         173.76,  +1.13,  -0.45
  4,     UK002F,       1,  0.224474, 2459443.436422839761,  21.34605,  30.38765,               77.10325,  29.36290,        77.09363,       29.34396,     21.34605,     +30.38765,      21.36926,      +30.37992,  2216224.36, -3305442.46,  5098410.61,      52.209147,       +1.198753,  102849.79,  204703.44,    8954.12,            12501.21,   219.31,  60026.09,           56072.98,     49.19,     55.28,          74.56,  +0.73,  -0.83
  5,     UK002F,       1,  0.264514, 2459443.436423303559,  21.13686,  30.03761,               77.53164,  29.23782,        77.50492,       29.18554,     21.13686,     +30.03761,      21.19934,      +30.01630,  2215602.83, -3306243.11,  5096401.22,      52.196025,       +1.184735,  101457.41,  202931.14,   11204.67,            14751.75,   142.26,  56207.48,           56404.19,    134.62,    151.62,         206.09,  +0.38,  -1.16
  6,     UK002F,       1,  0.304602, 2459443.436423767358,  20.98681,  29.66012,               77.93930,  29.05707,        77.92183,       29.02317,     20.98681,     +29.66012,      21.02782,      +29.64635,  2214981.76, -3307043.17,  5094393.31,      52.182905,       +1.170730,  100066.53,  201169.78,   13453.57,            17000.65,    60.78,  56099.05,           56489.80,     86.72,     97.57,         133.84,  +0.43,  -1.09
  7,     UK002F,       1,  0.344674, 2459443.436424231157,  20.78648,  29.24437,               78.41260,  28.87871,        78.39142,       28.83797,     20.78648,     +29.24437,      20.83560,      +29.22785,  2214292.75, -3307930.75,  5092165.74,      52.168341,       +1.155213,   98524.05,  199228.44,   15948.48,            19495.56,   226.24,  62260.71,           57006.40,    103.37,    116.35,         161.13,  +0.41,  -1.09
  8,     UK002F,       1,  0.384762, 2459443.436424694955,  20.63134,  28.85488,               78.83190,  28.69150,        78.81925,       28.66739,     20.63134,     +28.85488,      20.66114,      +28.84513,  2213674.27, -3308727.49,  5090166.19,      52.155260,       +1.141270,   97139.93,  197495.48,   18188.02,            21735.10,   135.40,  55865.48,           57171.38,     60.81,     68.38,          95.57,  +0.78,  -0.70
  9,     UK002F,       1,  0.424858, 2459443.436425159220,  20.50726,  28.49227,               79.20681,  28.50446,        79.20981,       28.51014,     20.50726,     +28.49227,      20.50240,      +28.49456,  2213117.15, -3309445.17,  5088365.03,      52.143471,       +1.128695,   95893.53,  195942.34,   20205.35,            23752.44,  -178.11,  50312.67,           56881.01,    -14.25,    -16.00,          22.55,  +1.75,  +0.29
  0,     UK002K,       1,  0.000000, 2459443.436420241836, 335.24386,   0.87180,              140.71726,  30.70895,       140.70858,       30.70056,    335.24386,      +0.87180,     335.25393,       +0.86685,  2219686.20, -3300982.91,  5109602.70,      52.282105,       +1.276878,  110613.73,  211592.60,       0.00,               34.14,   801.29,      0.00,           52745.51,      6.16,     41.01,          40.42,  +4.89,  +3.26
  1,     UK002K,       0,  0.040176, 2459443.436420707032, 335.07369,   0.49775,              141.06334,  30.42597,       141.06622,       30.42875,    335.07369,      +0.49775,     335.07051,       +0.49940,  2219266.03, -3301524.17,  5108244.29,      52.273262,       +1.267338,  109670.63,  211416.41,    1521.45,             1487.31,   -81.03,  37869.53,           52745.51,     -2.04,    -13.60,          13.41,  +2.25,  +0.62
  2,     UK002K,       1,  0.080416, 2459443.436421172693, 334.76579,  -0.06582,              141.63630,  30.01694,       141.61986,       30.00121,    334.76579,      -0.06582,     334.78515,       -0.07519,  2218610.34, -3302368.83,  5106124.46,      52.259456,       +1.252547,  108199.32,  211166.56,    3895.69,             3861.55,   -46.01,  59002.07,           52745.51,     11.59,     77.30,          76.35,  +1.12,  -0.50
  3,     UK002K,       0,  0.120684, 2459443.436421638820, 334.49252,  -0.65147,              142.17669,  29.57227,       142.17258,       29.56835,    334.49252,      -0.65147,     334.49779,       -0.65381,  2217951.52, -3303217.52,  5103994.52,      52.245576,       +1.237688,  106721.52,  210942.26,    6281.26,             6247.13,    -1.28,  59242.46,           52745.51,      2.90,     19.33,          19.11,  +1.03,  -0.59
  4,     UK002K,       0,  0.160948, 2459443.436422104482, 334.20637,  -1.23823,              142.72649,  29.12899,       142.72618,       29.12869,    334.20637,      -1.23823,     334.20741,       -1.23841,  2217287.22, -3304073.27,  5101846.84,      52.231571,       +1.222710,  105231.95,  210743.35,    8686.70,             8652.57,    63.55,  59741.67,           55004.44,      0.22,      1.49,           1.48,  +0.88,  -0.74
  5,     UK002K,       0,  0.201200, 2459443.436422570609, 333.93081,  -1.80299,              143.25124,  28.70022,       143.25466,       28.70344,    333.93081,      -1.80299,     333.92770,       -1.80104,  2216648.95, -3304895.49,  5099783.32,      52.218108,       +1.208314,  103801.25,  210577.80,   10997.88,            10963.74,    34.81,  57417.64,           55994.20,     -2.40,    -15.97,          15.82,  +0.67,  -0.95
  6,     UK002K,       0,  0.241444, 2459443.436423036270, 333.64385,  -2.36125,              143.78105,  28.27942,       143.77816,       28.27671,    333.64385,      -2.36125,     333.64818,       -2.36289,  2216012.45, -3305715.44,  5097725.51,      52.204674,       +1.193960,  102375.00,  210437.94,   13302.67,            13268.53,     0.15,  57270.37,           56484.28,      2.02,     13.47,          13.35,  +0.68,  -0.94
  7,     UK002K,       0,  0.281680, 2459443.436423501931, 333.38527,  -2.89400,              144.26635,  27.87054,       144.26835,       27.87240,    333.38527,      -2.89400,     333.38415,       -2.89286,  2215412.71, -3306488.02,  5095786.56,      52.192009,       +1.180427,  101031.57,  210328.95,   15474.32,            15440.18,  -167.18,  53972.91,           56479.23,     -1.40,     -9.30,           9.23,  +0.62,  -0.99
  8,     UK002K,       0,  0.321936, 2459443.436423968058, 333.08267,  -3.48729,              144.81770,  27.41806,       144.81494,       27.41550,    333.08267,      -3.48729,     333.08720,       -3.48885,  2214738.83, -3307356.12,  5093607.90,      52.177771,       +1.165245,   99522.59,  210233.99,   17914.46,            17880.32,   -67.19,  60615.54,           56752.69,      1.93,     12.86,          12.76,  +0.62,  -0.99
  9,     UK002K,       0,  0.362204, 2459443.436424434185, 332.79908,  -4.08306,              145.34509,  26.95445,       145.35197,       26.96082,    332.79908,      -4.08306,     332.79265,       -4.07914,  2214071.79, -3308215.39,  5091451.39,      52.163668,       +1.150218,   98029.50,  210167.90,   20329.79,            20295.66,     7.30,  59981.46,           57068.13,     -4.82,    -32.07,          31.83,  +0.55,  -1.06
 10,     UK002K,       0,  0.402424, 2459443.436424899381, 332.52283,  -4.60593,              145.83278,  26.55491,       145.82958,       26.55197,    332.52283,      -4.60593,     332.52820,       -4.60774,  2213474.67, -3308984.61,  5089520.89,      52.151037,       +1.136751,   96693.33,  210131.78,   22491.99,            22457.85,  -168.56,  53759.21,           57089.85,      2.23,     14.88,          14.77,  +1.09,  -0.52
 11,     UK002K,       0,  0.442604, 2459443.436425364576, 332.31497,  -5.02333,              146.20610,  26.23042,       146.20428,       26.22875,    332.31497,      -5.02333,     332.31892,       -5.02436,  2213004.10, -3309590.80,  5087999.54,      52.141078,       +1.126104,   95640.62,  210117.85,   24195.92,            24161.78,  -800.36,  42407.44,           56538.73,      1.27,      8.46,           8.40,  +3.15,  +1.54
  0,     UK0032,       0,  0.024532, 2459443.436420517974, 337.44982,  13.92138,              131.54751,  42.20284,       131.54322,       42.19830,    337.44982,     +13.92138,     337.45499,      +13.91883,  2219327.91, -3301444.46,  5108444.35,      52.274565,       +1.268786,  109809.51,  161822.09,       0.00,             1263.24,   604.29,      0.00,           53181.84,      1.23,     15.59,          19.94,  +2.67,  +1.62
  1,     UK0032,       0,  0.064616, 2459443.436420981772, 337.13728,  13.33282,              132.27545,  41.82058,       132.27431,       41.81939,    337.13728,     +13.33282,     337.13888,      +13.33215,  2218783.77, -3302145.42,  5106685.15,      52.263109,       +1.256483,  108588.44,  161176.51,    1970.33,             3233.56,   244.47,  49154.97,           53181.84,      0.32,      4.10,           5.26,  +1.37,  +0.33
  2,     UK0032,       0,  0.104696, 2459443.436421446037, 336.79547,  12.70964,              133.05105,  41.41677,       133.04450,       41.40999,    336.79547,     +12.70964,     336.80353,      +12.70581,  2218207.95, -3302887.19,  5104823.53,      52.250979,       +1.243475,  107296.64,  160517.31,    4055.38,             5318.62,    -0.39,  52022.38,           53181.84,      1.84,     23.37,          30.13,  +1.03,  +0.00
  3,     UK0032,       0,  0.144792, 2459443.436421909835, 336.41184,  11.99722,              133.91971,  40.94711,       133.90983,       40.93703,    336.41184,     +11.99722,     336.42384,      +11.99149,  2217557.37, -3303725.26,  5102720.23,      52.237267,       +1.228802,  105837.64,  159802.96,    6411.12,             7674.35,    24.50,  58752.30,           53181.84,      2.75,     34.86,          45.14,  +0.88,  -0.14
  4,     UK0032,       0,  0.184888, 2459443.436422374099, 336.06459,  11.33522,              134.70693,  40.50218,       134.69911,       40.49429,    336.06459,     +11.33522,     336.07433,      +11.33072,  2216960.97, -3304493.56,  5100792.05,      52.224690,       +1.215339,  104500.56,  159175.50,    8570.71,             9833.95,  -146.75,  53860.57,           53836.14,      2.16,     27.38,          35.59,  +0.58,  -0.43
  5,     UK0032,       0,  0.225008, 2459443.436422838364, 335.67833,  10.57119,              135.58774,  39.97730,       135.59047,       39.98002,    335.67833,     +10.57119,     335.67616,      +10.57275,  2216282.93, -3305367.00,  5098599.98,      52.210384,       +1.200059,  102981.02,  158495.87,   11025.87,            12289.10,   -23.84,  61195.36,           55075.23,     -0.75,     -9.47,          12.36,  +0.27,  -0.73
  6,     UK0032,       0,  0.265116, 2459443.436423302628, 335.32684,   9.87438,              136.38007,  39.49362,       136.39201,       39.50536,    335.32684,      +9.87438,     335.31444,       +9.88115,  2215669.53, -3306157.18,  5096616.87,      52.197434,       +1.186222,  101606.81,  157910.94,   13246.99,            14510.23,  -134.26,  55378.54,           55550.10,     -3.24,    -41.02,          53.74,  +0.22,  -0.77
  7,     UK0032,       0,  0.305216, 2459443.436423766892, 334.92480,   9.12422,              137.24980,  38.97769,       137.25350,       38.98129,    334.92480,      +9.12422,     334.92190,       +9.12631,  2215005.46, -3307012.64,  5094469.94,      52.183406,       +1.171258,  100119.59,  157311.24,   15651.59,            16914.83,   -60.74,  59965.12,           56115.87,     -1.00,    -12.62,          16.60,  +0.21,  -0.77
  8,     UK0032,       0,  0.345324, 2459443.436424230691, 334.55305,   8.40039,              138.05994,  38.46834,       138.06598,       38.47415,    334.55305,      +8.40039,     334.54774,       +8.40377,  2214374.71, -3307825.17,  5092430.73,      52.170074,       +1.157039,   98707.49,  156773.50,   17935.54,            19198.78,  -108.33,  56945.01,           56435.16,     -1.61,    -20.42,          26.96,  +0.23,  -0.75
  9,     UK0032,       0,  0.385428, 2459443.436424694955, 334.19251,   7.69896,              138.83581,  37.97046,       138.84294,       37.97724,    334.19251,      +7.69896,     334.18618,       +7.70293,  2213767.18, -3308607.80,  5090466.57,      52.157225,       +1.143339,   97347.81,  156285.26,   20135.43,            21398.67,  -239.75,  54854.65,           56511.46,     -1.89,    -23.96,          31.72,  +0.50,  -0.47
 10,     UK0032,       0,  0.425528, 2459443.436425159220, 333.83768,   7.00563,              139.59182,  37.47351,       139.60024,       37.48145,    333.83768,      +7.00563,     333.83012,       +7.01030,  2213170.60, -3309376.31,  5088537.85,      52.144602,       +1.129885,   96013.09,  155834.58,   22295.63,            23558.87,  -410.63,  53870.33,           56433.03,     -2.22,    -28.13,          37.35,  +1.24,  +0.28

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.