Orbital Analysis for matched events on 20211111_231956.330_UK

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Summary for Event
-----------------
shower ID -1 spo (Sporadic)
Lg 164.28° Bg 57.22° Vg 41.34km/s
mass 0.04696g, abs. mag -0.2
best visual mag 1.0
Path Details
------------
start -4.18° 51.87° 98.63km
end   -4.22° 51.71° 92.22km

Orbit Details
-------------
Semimajor axis 2.17A.U., eccentricity 0.58, inclination 74.31°, Period 3.20Y, LA Sun 229.49°, last Perihelion 2021-10-14

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: 2459530.472179750446
Time: 2021-11-11 23:19:56.330439 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK003E and UK003F
 Convergence angle = 0.46185 deg
 R.A. = 314.17888  Dec = +33.55930 deg
Intersection 2 - Stations: UK003E and UK003H
 Convergence angle = 5.29894 deg
 R.A. = 194.33059  Dec = +53.96052 deg
Intersection 3 - Stations: UK003F and UK003H
 Convergence angle = 5.41157 deg
 R.A. = 200.32429  Dec = +57.37411 deg

Best intersection: Stations UK003F and UK003H with Qconv = 5.41 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3195515.85 +/- 319.54 m
 Y =   2418430.83 +/- 312.34 m
 Z =   5071334.79 +/- 396.36 m
 Vx =   -21606.63 +/- 1346.29 m/s
 Vy =    -8173.78 +/- 917.70 m/s
 Vz =    36032.49 +/- 1390.46 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.035207e+05, -1.010777e+05, +1.277894e+05, +3.735850e+05, -3.305744e+05, +3.911906e+05
-1.010777e+05, +9.892914e+04, -1.249241e+05, -3.632249e+05, +3.218076e+05, -3.803891e+05
+1.277894e+05, -1.249241e+05, +1.586718e+05, +4.553463e+05, -4.023981e+05, +4.781152e+05
+3.735850e+05, -3.632249e+05, +4.553463e+05, +1.881615e+06, -1.647261e+06, +1.905015e+06
-3.305744e+05, +3.218076e+05, -4.023981e+05, -1.647261e+06, +1.446157e+06, -1.670484e+06
+3.911906e+05, -3.803891e+05, +4.781152e+05, +1.905015e+06, -1.670484e+06, +1.939316e+06

Timing offsets (from input data):
    UK003E: 0.000229 s
    UK003F: 0.000245 s
    UK003H: 0.000000 s

Reference point on the trajectory:
  Time: 2021-11-11 23:19:56.330439 UTC
  Lon     = +-4.181696 +/- 0.0063 deg
  Lat     = +51.867447 +/- 0.0017 deg
  Lat geo = +51.683233 +/- 0.0017 deg
  Ht      =   98632.62 +/- 352.66 m

  JD dynamic   = 2459530.472980491351 
  LST apparent = 37.1191706934 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 200.72162 +/- 3.9769 deg
  Dec       = +57.33540 +/- 1.9435 deg
  Azimuth   =   9.33286 +/- 2.6195 deg
  Elevation = +20.02736 +/- 1.5204 deg
  Vavg      =  42.24690 +/- 0.6426 km/s
  Vinit     =  42.80184 +/- 0.7193 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 200.02881 +/- 3.9769 deg
  Dec       = +57.24062 +/- 1.9435 deg
  Azimuth   =   9.74323 +/- 2.6195 deg
  Elevation = +20.00519 +/- 1.5204 deg
  Vavg      =  42.29240 +/- 0.6426 km/s
  Vinit     =  42.84734 +/- 0.7193 km/s
Radiant (geocentric, J2000):
  R.A.   = 200.97235 +/- 3.8839 deg
  Dec    = +56.07072 +/- 2.0148 deg
  Vg     =  41.33600 +/- 0.7445 km/s
  Vinf   =  42.80184 +/- 0.7193 km/s
  Zc     =  70.15442 +/- 1.5191 deg
  Zg     =  71.55626 +/- 1.6054 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 164.27663 +/- 0.3485 deg
  Bg     = +57.21741 +/- 2.9462 deg
  Vh     =  37.19662 +/- 1.8909 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 276.91418 +/- 5.3931 deg
  Bh     = +69.11666 +/- 0.0852 deg
  Vh_x   =  -1.59619 +/- 1.3156 km/s
  Vh_y   =  13.16291 +/- 0.5071 km/s
  Vh_z   = -34.75311 +/- 1.7733 km/s
Orbit:
  La Sun = 229.492251 +/- -0.0000 deg
  a      =   2.170662 +/- 2.0392 AU
  e      =   0.580377 +/- 0.1318
  i      =  74.307719 +/- 1.2828 deg
  peri   = 141.487675 +/- 10.3346 deg
  node   = 229.492188 +/- 0.0000 deg
  Pi     =  10.979863 +/- 10.3346 deg
  q      =   0.910861 +/- 0.0298 AU
  f      =  38.512991 +/- 10.3346 deg
  M      =   8.813121 +/- 7.2964 deg
  Q      =   3.430463 +/- 4.0601 AU
  n      =   0.308188 +/- 0.1533 deg/day
  T      =   3.198077 +/- 7.7122 years
  Last perihelion JD = 2459501.876410 (2021-10-14 09:02:01.834865) +/- 7.9655 days
  Tj     =   2.682045 +/- 0.7926
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +1.737719e-02, +3.818519e-03, +1.032005e+00, -2.014654e-06, +1.331752e+00, -1.664257e-01
q   , +3.818519e-03, +9.140400e-04, +2.434129e-01, -4.706840e-07, +3.160345e-01, -3.895156e-02
Tp  , +1.032005e+00, +2.434129e-01, +6.499421e+01, -1.258225e-04, +8.429097e+01, -1.040922e+01
node, -2.014654e-06, -4.706840e-07, -1.258225e-04, +2.453481e-10, -1.631097e-04, +2.029676e-05
peri, +1.331752e+00, +3.160345e-01, +8.429097e+01, -1.631097e-04, +1.093688e+02, -1.349573e+01
i   , -1.664257e-01, -3.895156e-02, -1.040922e+01, +2.029676e-05, -1.349573e+01, +1.679151e+00

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: UK003H
  Avg. res. = 2.544e-06 s
  Stddev    = 1.60e-03 s

Begin point on the trajectory:
  Lon =    -4.181683 +/- 0.0063 deg
  Lat =    51.867496 +/- 0.0017 deg
  Ht  = 98634.66 +/- 352.21 m
End point on the trajectory:
  Lon =    -4.224386 +/- 0.0066 deg
  Lat =    51.713069 +/- 0.0012 deg
  Ht  = 92219.37 +/- 333.16 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
    UK003E,   False,    -1.802002,    51.351948,  130.00,   0.000000,   0.000000,    97529.43,    94091.43,          0.019819,     67.04,     15.81,              71.37, 0.8980,    True,    True, {"ff_name": "FF_UK003E_20211111_231951_020_0570112.fits"}
    UK003F,   False,    -1.802002,    51.351948,  130.00,   0.000000,   0.000000,    97888.79,    92663.48,          0.017228,     57.99,     13.74,              71.37, 0.8980,    True,    True, {"ff_name": "FF_UK003F_20211111_231951_034_0570112.fits"}
    UK003H,   False,    -2.379250,    51.361350,  169.00,   0.000000,   0.000000,    98634.66,    92219.37,          0.007219,     20.75,      3.14,              65.79, 0.8318,    True,    True, {"ff_name": "FF_UK003H_20211111_231950_907_0566528.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,     UK003E,       0,  0.066301, 2459530.472180515528, 314.34514,  33.39231,              289.13392,  28.28702,       289.14260,       28.25635,    314.34514,     +33.39231,     314.31298,      +33.37601,  3197143.03,  2419046.39,  5068621.21,      51.840994,       -4.188991,   97529.43,  200661.90,       0.00,             3223.38,   171.14,      0.00,           41048.01,     25.40,    107.74,         113.79,  +2.56,  +1.05
  1,     UK003E,       0,  0.106529, 2459530.472180980723, 314.59896,  32.98799,              288.63923,  28.15070,       288.64121,       28.14380,    314.59896,     +32.98799,     314.59212,      +32.98434,  3197979.08,  2419362.67,  5067226.97,      51.827398,       -4.192763,   96963.14,  200209.68,    1656.18,             4879.55,   105.48,  41169.71,           41048.01,      5.72,     24.21,          25.63,  +1.79,  +0.28
  2,     UK003E,       0,  0.146729, 2459530.472181446385, 314.84909,  32.61937,              288.17562,  28.03750,       288.17566,       28.03735,    314.84909,     +32.61937,     314.84955,      +32.61929,  3198753.49,  2419655.63,  5065935.52,      51.814803,       -4.196268,   96438.92,  199802.90,    3190.25,             6413.63,   -81.08,  38161.12,           41048.01,      0.12,      0.51,           0.54,  +1.00,  -0.50
  3,     UK003E,       0,  0.186961, 2459530.472181912046, 315.14409,  32.18561,              287.62960,  27.90471,       287.62801,       27.91008,    315.14409,     +32.18561,     315.15052,      +32.18844,  3199662.78,  2419999.61,  5064419.13,      51.800011,       -4.200352,   95823.79,  199337.59,    4991.52,             8214.89,    -1.82,  44771.91,           41048.01,     -4.45,    -18.81,          20.00,  +1.31,  -0.19
  4,     UK003E,       0,  0.227173, 2459530.472182377242, 315.44112,  31.77456,              287.10018,  27.78931,       287.10139,       27.78531,    315.44112,     +31.77456,     315.43787,      +31.77246,  3200535.18,  2420329.64,  5062964.27,      51.785816,       -4.204276,   95234.02,  198905.89,    6719.71,             9943.08,     5.22,  42976.98,           41710.06,      3.30,     13.97,          14.88,  +1.41,  -0.08
  5,     UK003E,       0,  0.267381, 2459530.472182842437, 315.73031,  31.37439,              286.58464,  27.67702,       286.58932,       27.66176,    315.73031,     +31.37439,     315.71543,      +31.36641,  3201381.80,  2420649.92,  5061552.39,      51.772038,       -4.208087,   94662.05,  198500.75,    8396.83,            11620.21,   -38.63,  41711.18,           41899.37,     12.59,     53.34,          56.95,  +2.55,  +1.06
  6,     UK003E,       0,  0.307581, 2459530.472183308098, 316.02768,  30.97763,              286.06601,  27.57212,       286.07725,       27.53603,    316.02768,     +30.97763,     315.99121,      +30.95883,  3202226.96,  2420969.64,  5060142.95,      51.758281,       -4.211891,   94091.43,  198109.70,   10071.06,            13294.43,   -85.03,  41647.50,           41940.02,     29.70,    125.99,         134.77,  +3.95,  +2.47
  0,     UK003F,       1,  0.005267, 2459530.472179808654, 313.86022,  34.00087,              289.94718,  28.43174,       289.94698,       28.43247,    313.86022,     +34.00087,     313.86102,      +34.00126,  3195797.18,  2418537.26,  5070865.63,      51.862874,       -4.182931,   98441.78,  201417.27,       0.00,              557.31,   117.43,      0.00,           41536.26,     -0.61,     -2.57,           2.70,  +5.17,  +3.65
  1,     UK003F,       0,  0.045319, 2459530.472180272453, 314.12313,  33.61697,              289.46301,  28.31506,       289.45985,       28.32634,    314.12313,     +33.61697,     314.13526,      +33.62298,  3196612.76,  2418845.79,  5069505.53,      51.849615,       -4.186617,   97888.79,  200956.37,    1615.62,             2172.93,    18.75,  40338.01,           41536.26,     -9.38,    -39.65,          41.82,  +2.39,  +0.87
  2,     UK003F,       0,  0.085363, 2459530.472180735786, 314.40535,  33.22940,              288.96285,  28.20725,       288.96049,       28.21556,    314.40535,     +33.22940,     314.41449,      +33.23381,  3197446.73,  2419161.28,  5068114.75,      51.836055,       -4.190380,   97323.68,  200497.24,    3267.68,             3824.99,   -43.15,  41256.09,           41536.26,     -6.90,    -29.17,          30.83,  +2.07,  +0.56
  3,     UK003F,       0,  0.125391, 2459530.472181199118, 314.71751,  32.83147,              288.43404,  28.10995,       288.43766,       28.09744,    314.71751,     +32.83147,     314.70484,      +32.82486,  3198317.81,  2419490.81,  5066662.08,      51.821889,       -4.194301,   96733.81,  200030.71,    4993.25,             5550.56,   -30.85,  43109.22,           41536.26,     10.36,     43.86,          46.47,  +1.79,  +0.28
  4,     UK003F,       0,  0.165447, 2459530.472181662451, 315.00690,  32.40161,              287.89491,  27.97660,       287.89604,       27.97274,    315.00690,     +32.40161,     315.00353,      +32.39957,  3199218.09,  2419831.39,  5065160.72,      51.807245,       -4.198347,   96124.57,  199562.79,    6776.67,             7333.98,    38.10,  44523.13,           42281.77,      3.19,     13.51,          14.35,  +1.41,  -0.09
  5,     UK003F,       0,  0.205515, 2459530.472182126250, 315.27173,  31.98250,              287.38108,  27.83628,       287.37671,       27.85085,    315.27173,     +31.98250,     315.28790,      +31.99016,  3200079.32,  2420157.19,  5063724.47,      51.793233,       -4.202223,   95542.14,  199129.54,    8482.75,             9040.06,    29.19,  42579.47,           42537.31,    -12.06,    -50.99,          54.27,  +1.70,  +0.20
  6,     UK003F,       0,  0.245559, 2459530.472182590049, 315.55975,  31.57163,              286.85798,  27.71562,       286.85479,       27.72612,    315.55975,     +31.57163,     315.57178,      +31.57713,  3200943.12,  2420483.97,  5062283.95,      51.779177,       -4.206109,   94958.37,  198708.76,   10193.90,            10751.21,    26.38,  42731.73,           42649.37,     -8.68,    -36.70,          39.14,  +1.60,  +0.11
  7,     UK003F,       0,  0.285615, 2459530.472183053382, 315.85071,  31.13127,              286.30948,  27.57568,       286.30436,       27.59220,    315.85071,     +31.13127,     315.86921,      +31.13989,  3201852.45,  2420827.96,  5060767.51,      51.764378,       -4.210188,   94344.25,  198280.31,   11995.23,            12552.54,   113.25,  44970.36,           42889.52,    -13.66,    -57.72,          61.70,  +1.63,  +0.14
  8,     UK003F,       0,  0.325651, 2459530.472183516715, 316.16304,  30.70903,              285.76050,  27.46147,       285.76169,       27.45770,    316.16304,     +30.70903,     316.16046,      +30.70707,  3202747.37,  2421166.51,  5059275.09,      51.749809,       -4.214204,   93740.27,  197873.93,   13768.03,            14325.34,   172.43,  44280.09,           43094.25,      3.11,     13.15,          14.09,  +2.16,  +0.68
  9,     UK003F,       0,  0.365731, 2459530.472183980979, 316.33550,  30.35478,              285.36211,  27.31173,       285.34885,       27.35342,    316.33550,     +30.35478,     316.38054,      +30.37641,  3203426.88,  2421423.57,  5058141.89,      51.738746,       -4.217292,   93281.92,  197577.86,   15114.11,            15671.42,  -196.98,  33585.03,           42679.37,    -34.47,   -145.37,         155.97,  +3.09,  +1.61
 10,     UK003F,       0,  0.405755, 2459530.472184443846, 316.66804,  29.92507,              284.79316,  27.20425,       284.79106,       27.21075,    316.66804,     +29.92507,     316.67651,      +29.92843,  3204344.33,  2421770.64,  5056611.90,      51.723806,       -4.221401,   92663.48,  197188.50,   16931.55,            17488.86,   -92.65,  45408.61,           42577.08,     -5.36,    -22.67,          24.37,  +3.36,  +1.89
 11,     UK003F,       1,  0.445795, 2459530.472184907645, 316.97525,  29.48841,              284.23632,  27.07649,       284.23940,       27.06710,    316.97525,     +29.48841,     316.96735,      +29.48357,  3205250.53,  2422113.46,  5055100.67,      51.709046,       -4.225461,   92053.07,  196819.82,   18726.68,            19283.99,   -11.30,  44833.48,           42604.83,      7.73,     32.70,          35.21,  +5.40,  +3.93
  0,     UK003H,       0,  0.000000, 2459530.472179750446, 315.56942,  41.54127,              294.98263,  34.89659,       294.98360,       34.89143,    315.56942,     +41.54127,     315.56351,      +41.53849,  3195512.84,  2418429.69,  5071339.81,      51.867496,       -4.181683,   98634.66,  169537.52,       0.00,                5.96,  -208.47,      0.00,           43796.21,      2.31,     15.29,          18.81,  +3.34,  +2.19
  1,     UK003H,       0,  0.040252, 2459530.472180216108, 316.05208,  40.96178,              294.15956,  34.79090,       294.16120,       34.78260,    316.05208,     +40.96178,     316.04278,      +40.95735,  3196612.70,  2418845.77,  5069505.62,      51.849616,       -4.186596,   97888.83,  168711.72,    2178.78,             2172.82,   235.52,  54128.45,           43796.21,      3.70,     24.49,          30.28,  +2.79,  +1.65
  2,     UK003H,       0,  0.080428, 2459530.472180681303, 316.36401,  40.56564,              293.60718,  34.70869,       293.60785,       34.70546,    316.36401,     +40.56564,     316.36067,      +40.56392,  3197347.64,  2419123.80,  5068279.99,      51.837666,       -4.189933,   97390.80,  168176.32,    3634.67,             3628.71,   -28.19,  36237.93,           43796.21,      1.44,      9.51,          11.80,  +1.75,  +0.62
  3,     UK003H,       0,  0.120644, 2459530.472181146964, 316.72900,  40.08187,              292.94188,  34.59936,       292.93979,       34.60918,    316.72900,     +40.08187,     316.74063,      +40.08706,  3198231.12,  2419458.02,  5066806.64,      51.823299,       -4.193909,   96792.49,  167545.45,    5384.81,             5378.85,     0.63,  43518.40,           43796.21,     -4.37,    -28.83,          35.89,  +1.31,  +0.19
  4,     UK003H,       0,  0.160832, 2459530.472181612160, 317.11201,  39.62913,              292.29329,  34.52108,       292.29518,       34.51253,    317.11201,     +39.62913,     317.10302,      +39.62464,  3199079.29,  2419778.88,  5065392.18,      51.809503,       -4.197731,   96218.46,  166955.19,    7065.00,             7059.04,   -39.30,  41808.36,           43119.16,      3.79,     25.04,          31.29,  +1.20,  +0.09
  5,     UK003H,       0,  0.201040, 2459530.472182077356, 317.48395,  39.14746,              291.62462,  34.41750,       291.62667,       34.40854,    317.48395,     +39.14746,     317.47469,      +39.14278,  3199954.87,  2420110.11,  5063932.02,      51.795258,       -4.201670,   95626.28,  166361.21,    8799.48,             8793.52,   -25.80,  43137.58,           42928.27,      3.96,     26.19,          32.84,  +1.23,  +0.12
  6,     UK003H,       0,  0.241252, 2459530.472182542551, 317.85917,  38.65960,              290.94783,  34.31181,       290.95076,       34.29943,    317.85917,     +38.65960,     317.84628,      +38.65317,  3200836.16,  2420443.50,  5062462.33,      51.780918,       -4.205631,   95030.64,  165779.51,   10545.28,            10539.31,    -1.15,  43414.82,           42912.23,      5.45,     36.08,          45.40,  +1.42,  +0.32
  7,     UK003H,       0,  0.281484, 2459530.472183008213, 318.22293,  38.13922,              290.24860,  34.17776,       290.24762,       34.18175,    318.22293,     +38.13922,     318.22857,      +38.14128,  3201749.05,  2420788.85,  5060939.95,      51.766061,       -4.209727,   94414.06,  165193.96,   12353.67,            12347.71,    85.24,  44949.16,           43075.42,     -1.76,    -11.61,          14.66,  +1.82,  +0.73
  8,     UK003H,       0,  0.321692, 2459530.472183473874, 318.57574,  37.66291,              289.59584,  34.06660,       289.59535,       34.06854,    318.57574,     +37.66291,     318.57925,      +37.66391,  3202592.38,  2421107.88,  5059533.56,      51.752333,       -4.213522,   93844.84,  164669.55,   14024.27,            14018.31,    34.87,  41549.03,           43049.79,     -0.85,     -5.64,           7.14,  +1.85,  +0.77
  9,     UK003H,       0,  0.361912, 2459530.472183939070, 318.97119,  37.13677,              288.87081,  33.94708,       288.87293,       33.93897,    318.97119,     +37.13677,     318.96369,      +37.13263,  3203523.13,  2421459.99,  5057981.38,      51.737179,       -4.217691,   93217.04,  164107.66,   15868.06,            15862.10,   157.17,  45842.58,           43189.13,      3.56,     23.49,          29.86,  +2.33,  +1.25
 10,     UK003H,       0,  0.402136, 2459530.472184404731, 319.32533,  36.62486,              288.18499,  33.81252,       288.18534,       33.81125,    319.32533,     +36.62486,     319.32560,      +36.62421,  3204405.79,  2421793.89,  5056509.41,      51.722805,       -4.221651,   92622.10,  163592.74,   17616.57,            17610.60,   184.01,  43469.18,           43277.86,      0.56,      3.68,           4.69,  +2.84,  +1.77
 11,     UK003H,       0,  0.442288, 2459530.472184869461, 319.56396,  36.27529,              287.71878,  33.71856,       287.71800,       33.72139,    319.56396,     +36.27529,     319.56895,      +36.27672,  3205003.54,  2422020.02,  5055512.57,      51.713069,       -4.224386,   92219.37,  163256.71,   18800.68,            18794.72,  -350.46,  29490.74,           42799.59,     -1.24,     -8.19,          10.46,  +3.65,  +2.59
 12,     UK003H,       1,  0.522824, 2459530.472185801715, 320.37494,  35.05140,              286.10321,  33.37356,       286.09623,       33.39733,    320.37494,     +35.05140,     320.40325,      +35.06330,  3207071.69,  2422802.40,  5052063.60,      51.679374,       -4.233600,   90827.62,  162142.13,   22897.60,            22891.64,   299.38,  50870.70,           43062.30,    -10.41,    -68.47,          88.11,  +5.66,  +4.61

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.