Orbital Analysis for matched events on 20210810_014804.112_UK

Summary for Event
-----------------
shower ID 7 PER
Lg 63.83° Bg 41.16° Vg 58.04km/s
mass 0.03710g, abs. mag -1.4
Path Details
------------
start -3.32° 52.47° 106.22km
end   -3.40° 52.43° 96.99km

Orbit Details
-------------
Semimajor axis -73.41A.U., eccentricity 1.01, inclination 108.14°, Period 1000000000.00Y, LA Sun 137.38°, 

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: 2459436.575047595426
Time: 2021-08-10 01:48:04.192751 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001L and UK001Z
 Convergence angle = 45.90111 deg
 R.A. =  46.93216  Dec = +61.65954 deg
Intersection 2 - Stations: UK001L and UK0027
 Convergence angle = 24.62934 deg
 R.A. =  45.31474  Dec = +63.25960 deg
Intersection 3 - Stations: UK001L and UK002Z
 Convergence angle = 43.00915 deg
 R.A. =  48.88635  Dec = +59.44818 deg
Intersection 4 - Stations: UK001Z and UK0027
 Convergence angle = 21.29421 deg
 R.A. =  45.45284  Dec = +59.76622 deg
Intersection 5 - Stations: UK001Z and UK002Z
 Convergence angle = 88.88541 deg
 R.A. =  45.71880  Dec = +60.12458 deg
Intersection 6 - Stations: UK0027 and UK002Z
 Convergence angle = 67.59171 deg
 R.A. =  45.43804  Dec = +60.17961 deg

Best intersection: Stations UK001Z and UK002Z with Qconv = 88.89 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3775991.36 +/- 107.30 m
 Y =  -1191138.56 +/- 87.55 m
 Z =   5123421.22 +/- 263.30 m
 Vx =    19590.20 +/- 1058.47 m/s
 Vy =    20979.52 +/- 928.60 m/s
 Vz =    51651.57 +/- 997.73 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+5.985852e+03, +2.618453e+03, -1.122434e+04, +5.558152e+04, +3.064158e+04, -3.176651e+04
+2.618453e+03, +5.811408e+03, -1.120627e+04, +3.238922e+04, +3.912126e+04, -3.082552e+04
-1.122434e+04, -1.120627e+04, +3.625122e+04, -1.279037e+05, -1.124649e+05, +9.181011e+04
+5.558152e+04, +3.238922e+04, -1.279037e+05, +6.108917e+05, +4.386536e+05, -3.603008e+05
+3.064158e+04, +3.912126e+04, -1.124649e+05, +4.386536e+05, +4.721818e+05, -3.012981e+05
-3.176651e+04, -3.082552e+04, +9.181011e+04, -3.603008e+05, -3.012981e+05, +3.074025e+05

Timing offsets (from input data):
    UK000S: 0.000000 s
    UK001L: -0.000171 s
    UK001Z: 0.000045 s
    UK0027: 0.000000 s
    UK002Z: -0.000026 s
    UK003H: 0.000000 s

Reference point on the trajectory:
  Time: 2021-08-10 01:48:04.192751 UTC
  Lon     = +-3.292546 +/- 0.0016 deg
  Lat     = +52.485827 +/- 0.0019 deg
  Lat geo = +52.302945 +/- 0.0019 deg
  Ht      =  110280.18 +/- 170.05 m

  JD dynamic   = 2459436.575849268120 
  LST apparent = 342.4920912133 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  46.96134 +/- 0.6460 deg
  Dec       = +60.93809 +/- 1.3462 deg
  Azimuth   =  50.12084 +/- 2.2995 deg
  Elevation = +55.16746 +/- 0.4091 deg
  Vavg      =  59.01430 +/- 0.5194 km/s
  Vinit     =  59.09146 +/- 0.3381 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  47.20750 +/- 0.6460 deg
  Dec       = +60.71752 +/- 1.3462 deg
  Azimuth   =  50.43304 +/- 2.2995 deg
  Elevation = +54.99109 +/- 0.4091 deg
  Vavg      =  59.14143 +/- 0.5194 km/s
  Vinit     =  59.21859 +/- 0.3381 km/s
Radiant (geocentric, J2000):
  R.A.   =  47.16619 +/- 0.6539 deg
  Dec    = +60.76810 +/- 1.3564 deg
  Vg     =  58.04038 +/- 0.3443 km/s
  Vinf   =  59.09146 +/- 0.3381 km/s
  Zc     =  34.95005 +/- 0.4055 deg
  Zg     =  35.27377 +/- 0.4095 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  63.83119 +/- 0.8827 deg
  Bg     = +41.16341 +/- 1.2233 deg
  Vh     =  41.97979 +/- 0.7766 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  91.38541 +/- 2.9176 deg
  Bh     = +65.51255 +/- 1.1601 deg
  Vh_x   =   0.42070 +/- 0.9213 km/s
  Vh_y   = -17.39528 +/- 0.4930 km/s
  Vh_z   = -38.20379 +/- 1.0147 km/s
Orbit:
  La Sun = 137.381139 +/- -0.0000 deg
  a      = -73.407896 +/- 95.2315 AU
  e      =   1.012672 +/- 0.0675
  i      = 108.139242 +/- 1.7036 deg
  peri   = 146.748156 +/- 1.1661 deg
  node   = 137.381213 +/- 0.0001 deg
  Pi     = 284.129369 +/- 1.1661 deg
  q      =   0.930240 +/- 0.0044 AU
  f      =  33.248155 +/- 1.1660 deg
  M      =        nan +/- nan deg
  Q      = -147.746031 +/- 190.4634 AU
  n      =   0.001567 +/- 0.0175 deg/day
  T      = 1000000000.000000 +/- 399999728.3783 years
  Last perihelion JD = NaN 
  Tj     =  -0.444362 +/- 0.3572
Shower association:
  IAU No.  =    7
  IAU code =  PER

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +2.018759e-03, +2.208347e-06, +2.607877e-02, +6.357045e-08, +3.471606e-04, -9.173635e-04
q   , +2.208347e-06, +1.954139e-05, +2.535910e-03, -4.739951e-10, +7.285853e-05, +7.090820e-06
Tp  , +2.607877e-02, +2.535910e-03, +6.590074e-01, +7.513766e-07, +1.379119e-02, -1.081042e-02
node, +6.357045e-08, -4.739951e-10, +7.513766e-07, +3.058042e-12, +8.891150e-09, -4.389502e-08
peri, +3.471606e-04, +7.285853e-05, +1.379119e-02, +8.891150e-09, +3.286442e-04, -1.273800e-04
i   , -9.173635e-04, +7.090820e-06, -1.081042e-02, -4.389502e-08, -1.273800e-04, +6.301275e-04

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: UK0027
  Avg. res. = 6.935e-07 s
  Stddev    = 8.33e-04 s

Begin point on the trajectory:
  Lon =    -3.323919 +/- 0.0009 deg
  Lat =    52.469816 +/- 0.0011 deg
  Ht  = 106221.83 +/- 97.75 m
End point on the trajectory:
  Lon =    -3.396196 +/- 0.0011 deg
  Lat =    52.433283 +/- 0.0013 deg
  Ht  = 96993.19 +/- 104.27 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
    UK000S,    True,    -1.778230,    50.857470,   24.00, 96617.647460,   0.012899,   102878.29,    97148.71,          0.028153,       nan,       nan,              64.11, 0.0000,    True,    True, {"ff_name": "FF_UK000S_20210810_014756_769_0493312.fits"}
    UK001L,   False,    -1.306160,    51.883100,   80.00,   0.000000,   0.000000,   103786.64,    97814.50,          0.038456,     35.16,    119.84,              74.61, 0.9296,    True,    True, {"ff_name": "FF_UK001L_20210810_014803_883_0476672.fits"}
    UK001Z,   False,    -2.949729,    50.877448,   82.00,  33.108691,   0.000000,   105862.81,    97850.47,          0.037645,     65.90,    118.09,              48.43, 0.5597,    True,    True, {"ff_name": "FF_UK001Z_20210810_014755_483_0489728.fits"}
    UK0027,   False,    -2.374601,    51.371449,   48.00,   0.000000,   0.000000,   106221.83,    96993.19,          0.012869,      5.14,     38.31,              54.61, 0.6647,    True,    True, {"ff_name": "FF_UK0027_20210810_014804_825_0488704.fits"}
    UK002Z,   False,    -0.382830,    53.537790,   34.00,   0.035824,  29.005839,   105162.48,    99255.63,          0.032091,    123.66,     73.56,              98.29, 0.9792,    True,    True, {"ff_name": "FF_UK002Z_20210810_014759_405_0486912.fits"}
    UK003H,    True,    -2.379250,    51.361350,  169.00,   0.960726,  18.697257,   105139.66,    97456.24,          0.103883,       nan,       nan,              54.58, 0.0000,    True,    True, {"ff_name": "FF_UK003H_20210810_014801_075_0489472.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,     UK000S,       1,  1.823874, 2459436.575068705250, 218.26347,  55.02504,              329.08589,  25.09629,       329.06734,       25.10996,    218.26347,     +55.02504,     218.30875,      +55.02681,  3773007.42, -1194334.12,  5115553.76,      52.456662,       -3.356947,  102878.29,  234240.88,       0.00,             9000.69, -98803.24,      0.00,           57813.35,    -86.14,    -20.50,          77.97,  +2.06,  +0.21
  1,     UK000S,       1,  1.864094, 2459436.575069170445, 218.31417,  54.56051,              328.76986,  24.72956,       328.74259,       24.74961,    218.31417,     +54.56051,     218.37674,      +54.56308,  3772310.46, -1195080.50,  5113716.16,      52.449837,       -3.370464,  101153.02,  233326.77,    2102.28,            11102.98, -99077.61,  52269.61,           57813.35,   -126.23,    -30.06,         114.71,  +1.11,  -0.73
  2,     UK000S,       1,  1.904334, 2459436.575069636106, 218.37231,  54.04628,              328.42042,  24.32396,       328.38533,       24.34971,    218.37231,     +54.04628,     218.44998,      +54.04955,  3771544.72, -1195900.55,  5111697.20,      52.442331,       -3.385302,   99257.78,  232339.82,    4412.06,            13412.75, -99145.68,  57399.90,           57813.35,   -161.97,    -38.60,         147.82,  +1.83,  -0.00
  3,     UK000S,       1,  1.944562, 2459436.575070101768, 218.52232,  53.47308,              327.98677,  23.89997,       327.98711,       23.89973,    218.52232,     +53.47308,     218.52978,      +53.47305,  3770692.42, -1196813.29,  5109450.03,      52.433970,       -3.401802,   97148.71,  231263.00,    6982.91,            15983.60, -98951.96,  63907.06,           57813.35,      1.55,      0.37,           1.42,  +2.97,  +1.15
  0,     UK001L,       0,  0.133428, 2459436.575049141888, 258.44203,  40.79452,              295.61627,  33.11543,       295.54366,       33.15355,    258.44203,     +40.79452,     258.53403,      +40.77564,  3773368.12, -1193947.84,  5116504.77,      52.460192,       -3.342978,  103786.64,  186218.67,       0.00,             7912.70,    -0.32,      0.00,           59957.64,   -223.83,     65.63,         258.36,  +5.77,  +4.42
  1,     UK001L,       0,  0.173756, 2459436.575049608480, 258.31270,  40.08145,              295.07391,  32.55821,       295.09352,       32.54795,    258.31270,     +40.08145,     258.28889,      +40.08652,  3772577.13, -1194794.92,  5114419.27,      52.452448,       -3.358294,  101829.24,  185627.51,    2385.90,            10298.60,     2.55,  59162.47,           59957.64,     60.44,    -17.83,          70.02,  +1.55,  +0.21
  2,     UK001L,       0,  0.214164, 2459436.575050076470, 258.04408,  39.39620,              294.65113,  31.93821,       294.64855,       31.93956,    258.04408,     +39.39620,     258.04820,      +39.39553,  3771789.51, -1195638.40,  5112342.62,      52.444731,       -3.373551,   99880.43,  185067.73,    4761.67,            12674.36,    -9.46,  58794.37,           59957.64,     -7.98,      2.35,           9.27,  +0.98,  -0.36
  3,     UK001L,       0,  0.254596, 2459436.575050543994, 257.77147,  38.66303,              294.19993,  31.27889,       294.18045,       31.28903,    257.77147,     +38.66303,     257.79667,      +38.65806,  3770954.44, -1196532.70,  5110140.86,      52.436541,       -3.389720,   97814.50,  184505.37,    7280.57,            15193.26,   120.26,  62299.71,           59957.64,    -60.21,     17.72,          70.17,  +1.73,  +0.40
  0,     UK001Z,       0,  0.095291, 2459436.575048698112, 182.01404,  67.80898,              351.79920,  29.55401,       351.76598,       29.57972,    182.01404,     +67.80898,     182.10503,      +67.82705,  3774206.98, -1193049.49,  5118716.51,      52.468398,       -3.326757,  105862.81,  209125.43,       0.00,             5382.38,  -277.07,      0.00,           60269.78,   -123.29,    -68.81,         139.26,  +3.69,  +2.09
  1,     UK001Z,       0,  0.135559, 2459436.575049164239, 182.74548,  67.30874,              351.34945,  29.13628,       351.32796,       29.15287,    182.74548,     +67.30874,     182.80381,      +67.32019,  3773274.87, -1194047.70,  5116258.91,      52.459280,       -3.344772,  103555.87,  207226.76,    2811.59,             8193.97,   155.02,  69821.93,           60269.78,    -79.12,    -44.12,          90.17,  +2.57,  +0.99
  2,     UK001Z,       0,  0.175803, 2459436.575049629901, 183.25823,  66.87719,              351.00592,  28.76790,       350.96694,       28.79789,    183.25823,     +66.87719,     183.36243,      +66.89761,  3772514.85, -1194861.62,  5114255.06,      52.451838,       -3.359495,  101675.13,  205694.50,    5104.08,            10486.46,    69.43,  56964.75,           60269.78,   -142.51,    -79.54,         163.65,  +1.62,  +0.05
  3,     UK001Z,       0,  0.216031, 2459436.575050095562, 183.78469,  66.46006,              350.65564,  28.41736,       350.61493,       28.44860,    183.78469,     +66.46006,     183.89237,      +66.48104,  3771779.82, -1195648.77,  5112317.08,      52.444636,       -3.373743,   99856.45,  204226.32,    7321.21,            12703.59,   -90.57,  55114.10,           60269.78,   -147.88,    -82.54,         171.05,  +1.78,  +0.23
  4,     UK001Z,       0,  0.256267, 2459436.575050561223, 184.40732,  66.00165,              350.24547,  28.03986,       350.22385,       28.05641,    184.40732,     +66.00165,     184.46437,      +66.01259,  3770968.98, -1196517.12,  5110179.20,      52.436684,       -3.389448,   97850.47,  202622.45,    9767.02,            15149.40,   -22.36,  60786.72,           59747.52,    -78.02,    -43.49,          90.92,  +2.28,  +0.75
  0,     UK0027,       1,  0.000000, 2459436.575047595426, 227.31368,  66.70699,              333.40356,  37.51363,       333.38618,       37.52730,    227.31368,     +66.70699,     227.36278,      +66.70691,  3775996.76, -1191132.78,  5123435.47,      52.485880,       -3.292106,  110293.56,  178458.31,       0.00,               16.29,   -12.25,      0.00,           59017.07,    -59.94,     -8.10,          69.90,  +6.03,  +4.77
  1,     UK0027,       0,  0.080488, 2459436.575048527215, 227.36865,  65.41787,              332.24833,  36.61219,       332.25257,       36.60889,    227.36865,     +65.41787,     227.35760,      +65.41789,  3774352.02, -1192894.16,  5119098.93,      52.469816,       -3.323919,  106221.83,  175480.87,    4961.18,             4944.88,   160.19,  61638.70,           59017.07,     14.37,      1.93,          17.05,  +2.40,  +1.18
  2,     UK0027,       0,  0.120700, 2459436.575048992410, 227.38128,  64.86318,              331.76315,  36.21816,       331.77289,       36.21063,    227.38128,     +64.86318,     227.35616,      +64.86323,  3773661.52, -1193633.63,  5117278.37,      52.463063,       -3.337306,  104512.78,  174258.69,    7043.97,             7027.67,  -133.21,  51795.24,           59017.07,     32.81,      4.41,          39.18,  +1.39,  +0.18
  3,     UK0027,       0,  0.160960, 2459436.575049458537, 227.40432,  64.18242,              331.17115,  35.73440,       331.19113,       35.71902,    227.40432,     +64.18242,     227.35366,      +64.18251,  3772826.24, -1194528.15,  5115076.05,      52.454888,       -3.353469,  102445.65,  172801.45,    9563.50,             9547.21,     7.30,  62581.64,           59017.07,     66.82,      8.96,          80.48,  +0.95,  -0.24
  4,     UK0027,       0,  0.201244, 2459436.575049924664, 227.34035,  63.51231,              330.62939,  35.22921,       330.62531,       35.23233,    227.34035,     +63.51231,     227.35144,      +63.51229,  3772017.39, -1195394.36,  5112943.44,      52.446964,       -3.369131,  100444.23,  171414.09,   12003.30,            11987.00,    66.66,  60564.89,           59303.52,    -13.55,     -1.82,          16.45,  +0.80,  -0.37
  5,     UK0027,       0,  0.241480, 2459436.575050390325, 227.38724,  62.86688,              330.07106,  34.77329,       330.08680,       34.76130,    227.38724,     +62.86688,     227.34959,      +62.86695,  3771250.83, -1196215.29,  5110922.32,      52.439449,       -3.383985,   98547.71,  170121.50,   14315.54,            14299.24,     1.29,  57466.86,           59197.76,     51.89,      6.96,          63.47,  +0.98,  -0.17
  6,     UK0027,       0,  0.281700, 2459436.575050855987, 227.35755,  62.33003,              329.63907,  34.37096,       329.64319,       34.36783,    227.35755,     +62.33003,     227.34879,      +62.33005,  3770622.43, -1196888.25,  5109265.49,      52.433283,       -3.396196,   96993.19,  169079.06,   16211.03,            16194.73,  -479.88,  47128.05,           58066.21,     13.50,      1.81,          16.61,  +2.05,  +0.91
  0,     UK002Z,       0,  0.105937, 2459436.575048822444, 292.51945,   2.59111,              240.10463,  23.24243,       240.11009,       23.24204,    292.51945,      +2.59111,     292.51539,       +2.59336,  3773924.03, -1193352.51,  5117970.48,      52.465631,       -3.332219,  105162.48,  255652.89,       0.00,             6235.86,   -52.63,      0.00,           58866.89,     11.46,    -19.32,          18.13,  +4.28,  +2.24
  1,     UK002Z,       0,  0.146381, 2459436.575049290434, 292.24701,   2.09228,              240.07862,  22.67466,       240.06414,       22.67570,    292.24701,      +2.09228,     292.25961,       +2.08627,  3773072.60, -1194264.31,  5115725.62,      52.457300,       -3.348691,  103055.32,  256088.54,    2568.22,             8804.08,   125.69,  63500.56,           58866.89,    -30.58,     51.50,          48.24,  +2.76,  +0.72
  2,     UK002Z,       0,  0.186749, 2459436.575049757957, 292.03906,   1.65707,              240.02875,  22.19458,       240.02566,       22.19480,    292.03906,      +1.65707,     292.04241,       +1.65578,  3772347.52, -1195040.82,  5113813.86,      52.450199,       -3.362747,  101261.07,  256480.62,    4755.34,            10991.21,   -72.58,  54179.74,           58866.89,     -6.57,     11.07,          10.35,  +1.61,  -0.44
  3,     UK002Z,       0,  0.227181, 2459436.575050225947, 291.74383,   1.20409,              240.04996,  21.65430,       239.98292,       21.65910,    291.74383,      +1.20409,     291.80069,       +1.17612,  3771536.97, -1195908.85,  5111676.78,      52.442255,       -3.378443,   99255.63,  256939.29,    7200.25,            13436.11,   -16.86,  60469.55,           58866.89,   -143.30,    240.87,         225.00,  +1.69,  -0.36
  0,     UK003H,       1,  0.103808, 2459436.575048796833, 226.26579,  65.11088,              332.39886,  36.06347,       332.28053,       36.15516,    226.26579,     +65.11088,     226.58097,      +65.11151,  3773914.80, -1193362.38,  5117946.17,      52.465541,       -3.332386,  105139.66,  175312.04,       0.00,             6263.68,   100.97,      0.00,           57290.29,   -401.13,    -58.04,         476.87,  +1.61,  +0.39
  1,     UK003H,       1,  0.144320, 2459436.575049265753, 226.34370,  64.49859,              331.85102,  35.64059,       331.75632,       35.71363,    226.34370,     +64.49859,     226.59069,      +64.49907,  3773156.16, -1194174.82,  5115945.94,      52.458118,       -3.347081,  103262.11,  173979.71,    2288.35,             8552.02,    -4.59,  56485.61,           57290.29,   -318.81,    -45.93,         381.87,  +0.65,  -0.55
  2,     UK003H,       1,  0.184868, 2459436.575049735140, 226.35042,  63.84630,              331.30244,  35.16566,       331.20444,       35.24084,    226.35042,     +63.84630,     226.60038,      +63.84677,  3772360.47, -1195026.95,  5113848.01,      52.450326,       -3.362490,  101293.12,  172603.77,    4688.47,            10952.14,    -0.51,  59192.11,           57290.29,   -327.50,    -47.18,         395.41,  +0.43,  -0.76
  3,     UK003H,       1,  0.225392, 2459436.575050204061, 226.39038,  63.22485,              330.77209,  34.72124,       330.68448,       34.78813,    226.39038,     +63.22485,     226.60944,      +63.22526,  3771614.08, -1195826.28,  5111880.07,      52.443011,       -3.376958,   99446.38,  171334.02,    6939.87,            13203.54,  -143.73,  55557.22,           57290.29,   -290.84,    -41.81,         353.74,  +0.40,  -0.77
  4,     UK003H,       1,  0.265964, 2459436.575050673913, 226.49029,  62.54510,              330.17453,  34.25056,       330.12228,       34.29027,    226.49029,     +62.54510,     226.61862,      +62.54533,  3770809.62, -1196687.79,  5109759.03,      52.435120,       -3.392542,   97456.24,  169988.03,    9366.42,            15630.10,  -114.64,  59808.61,           57684.61,   -172.28,    -24.61,         211.16,  +1.41,  +0.26

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.