Orbital Analysis for matched events on 20210929_202421.203_UK

Summary for Event
-----------------
shower ID -1 spo
Lg 17.41° Bg 82.59° Vg 25.13km/s
mass 0.01512g, abs. mag 1.8
Path Details
------------
start -2.14° 52.26° 94.29km
end   -2.12° 52.24° 84.73km

Orbit Details
-------------
Semimajor axis 3.07A.U., eccentricity 0.68, inclination 40.55°, Period 5.39Y, LA Sun 186.61°, last Perihelion 2016-05-20

Full details below
Click here to download a zip of the raw and processed data.

Detailed report below graphs

Click on an image to see a larger view


Input measurement type: Azimuth +east of due north for meas1, Elevation angle above the horizon for meas2

Uncertainties type:
 Purely geometric uncertainties

Reference JD: 2459487.350245415233
Time: 2021-09-29 20:24:21.215262 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK003T and UK003U
 Convergence angle = 0.14051 deg
 R.A. = 122.02362  Dec =  +2.55763 deg
Intersection 2 - Stations: UK003T and UK003X
 Convergence angle = 32.54567 deg
 R.A. = 291.54659  Dec = +66.83124 deg
Intersection 3 - Stations: UK003U and UK003X
 Convergence angle = 32.59445 deg
 R.A. = 291.32183  Dec = +66.60315 deg

Best intersection: Stations UK003U and UK003X with Qconv = 32.59 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   2695478.24 +/- 26.91 m
 Y =  -2914293.55 +/- 61.17 m
 Z =   5095198.53 +/- 75.95 m
 Vx =     3736.30 +/- 147.51 m/s
 Vy =    -9982.84 +/- 251.77 m/s
 Vz =    25320.30 +/- 288.73 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+8.151585e+02, -1.245307e+03, +4.722562e+02, +3.046156e+03, -2.555737e+03, +3.141626e+02
-1.245307e+03, +2.776496e+03, -1.247504e+02, -5.852307e+03, +1.016046e+04, -5.243652e+02
+4.722562e+02, -1.247504e+02, +7.750127e+03, -2.589623e+03, +1.524239e+04, -9.771853e+02
+3.046156e+03, -5.852307e+03, -2.589623e+03, +1.799772e+04, -3.107719e+04, +1.651101e+03
-2.555737e+03, +1.016046e+04, +1.524239e+04, -3.107719e+04, +9.851855e+04, -2.861575e+03
+3.141626e+02, -5.243652e+02, -9.771853e+02, +1.651101e+03, -2.861575e+03, +5.883451e+02

Timing offsets (from input data):
    UK003T: -0.001480 s
    UK003U: -0.000842 s
    UK003X: 0.000000 s

Reference point on the trajectory:
  Time: 2021-09-29 20:24:21.215262 UTC
  Lon     = +-2.135409 +/- 0.0004 deg
  Lat     = +52.261170 +/- 0.0006 deg
  Lat geo = +52.077459 +/- 0.0006 deg
  Ht      =   94228.57 +/- 71.77 m

  JD dynamic   = 2459487.351046287920 
  LST apparent = 312.7662475229 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 290.51946 +/- 0.4319 deg
  Dec       = +67.17029 +/- 0.7375 deg
  Azimuth   = 332.32832 +/- 1.8396 deg
  Elevation = +71.56043 +/- 0.4932 deg
  Vavg      =  27.21389 +/- 0.1053 km/s
  Vinit     =  27.47244 +/- 0.1630 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 291.97430 +/- 0.4319 deg
  Dec       = +67.37472 +/- 0.7375 deg
  Azimuth   = 334.04475 +/- 1.8396 deg
  Elevation = +71.81920 +/- 0.4932 deg
  Vavg      =  27.17286 +/- 0.1053 km/s
  Vinit     =  27.43141 +/- 0.1630 km/s
Radiant (geocentric, J2000):
  R.A.   = 288.90837 +/- 0.4537 deg
  Dec    = +67.69585 +/- 0.7779 deg
  Vg     =  25.12598 +/- 0.1782 km/s
  Vinf   =  27.47244 +/- 0.1630 km/s
  Zc     =  18.60246 +/- 0.4957 deg
  Zg     =  19.43968 +/- 0.5288 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  17.41324 +/- 5.8516 deg
  Bg     = +82.59434 +/- 0.1792 deg
  Vh     =  38.50780 +/- 0.3724 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 283.78093 +/- 0.1692 deg
  Bh     = +40.32361 +/- 0.1308 deg
  Vh_x   =  -6.99347 +/- 0.1421 km/s
  Vh_y   =  28.51329 +/- 0.3211 km/s
  Vh_z   = -24.91855 +/- 0.1753 km/s
Orbit:
  La Sun = 186.611217 +/- 0.0000 deg
  a      =   3.074431 +/- 0.3335 AU
  e      =   0.677867 +/- 0.0321
  i      =  40.545555 +/- 0.1267 deg
  peri   = 193.530473 +/- 0.3507 deg
  node   = 186.612714 +/- 0.0000 deg
  Pi     =  20.143187 +/- 0.3507 deg
  q      =   0.990377 +/- 0.0005 AU
  f      = 346.467078 +/- 0.3507 deg
  M      = 358.075398 +/- 0.3389 deg
  Q      =   5.158486 +/- 0.6669 AU
  n      =   0.182834 +/- 0.0270 deg/day
  T      =   5.390733 +/- 0.9040 years
  Last perihelion JD = 2457528.878146 (2016-05-20 09:04:31.774748) +/- 330.4626 days
  Tj     =   2.551533 +/- 0.1588
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +7.365502e-04, +5.712568e-07, -6.892172e+00, +3.228462e-09, -8.530917e-05, -4.888953e-05
q   , +5.712568e-07, +2.692291e-07, -5.235371e-03, +1.031696e-11, -2.835370e-06, -1.584474e-07
Tp  , -6.892172e+00, -5.235371e-03, +6.644538e+04, -3.043042e-05, +7.894821e-01, +4.606168e-01
node, +3.228462e-09, +1.031696e-11, -3.043042e-05, +1.587773e-14, -4.532228e-10, -2.404357e-10
peri, -8.530917e-05, -2.835370e-06, +7.894821e-01, -4.532228e-10, +3.844744e-05, +6.886676e-06
i   , -4.888953e-05, -1.584474e-07, +4.606168e-01, -2.404357e-10, +6.886676e-06, +3.641067e-06

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.772214
 a2 = 16.131094

Mean time residuals from time vs. length:
  Station with reference time: UK003X
  Avg. res. = 2.313e-06 s
  Stddev    = 1.52e-03 s

Begin point on the trajectory:
  Lon =    -2.135548 +/- 0.0004 deg
  Lat =    52.261332 +/- 0.0006 deg
  Ht  = 94290.65 +/- 48.16 m
End point on the trajectory:
  Lon =    -2.115669 +/- 0.0006 deg
  Lat =    52.236282 +/- 0.0005 deg
  Ht  = 84726.13 +/- 53.55 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
    UK003T,   False,    -1.740490,    53.069201,  240.00,   0.023718,  25.131906,    91480.31,    85219.94,          0.011643,     24.84,      8.97,              58.21, 0.7224,    True,    True, {"ff_name": "FF_UK003T_20210929_202417_713_0183296.fits"}
    UK003U,   False,    -1.740490,    53.069201,  240.00,   1.970636,  13.530989,    94290.65,    84726.13,          0.022113,     47.06,     16.98,              58.21, 0.7224,    True,    True, {"ff_name": "FF_UK003U_20210929_202416_551_0181248.fits"}
    UK003X,   False,    -2.362458,    51.684814,  132.00,   0.092795,  22.910853,    94230.47,    85149.32,          0.018131,     34.09,      6.76,              24.47, 0.1716,    True,    True, {"ff_name": "FF_UK003X_20210929_202414_264_0180224.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,     UK003T,       0,  0.106770, 2459487.350246656686, 301.26750,   7.46399,              196.32877,  43.37800,       196.34045,       43.37579,    301.26750,      +7.46399,     301.25909,       +7.46326,  2695084.23, -2913240.84,  5092528.44,      52.253980,       -2.129666,   91480.31,  131818.08,       0.00,             2897.04,   -40.63,      0.00,           28037.88,     -6.86,    -18.98,          31.58,  +3.56,  +2.96
  1,     UK003T,       0,  0.146934, 2459487.350247121882, 301.30052,   7.02445,              196.18236,  42.95038,       196.19527,       42.94794,    301.30052,      +7.02445,     301.29128,       +7.02364,  2694925.83, -2912817.61,  5091454.96,      52.251087,       -2.127363,   90375.42,  131244.57,    1164.71,             4061.76,    20.68,  28998.91,           28037.88,     -7.59,    -21.03,          35.14,  +2.63,  +2.04
  2,     UK003T,       0,  0.187090, 2459487.350247586612, 301.30447,   6.66586,              196.09490,  42.59756,       196.08019,       42.60034,    301.30447,      +6.66586,     301.31643,       +6.66679,  2694798.27, -2912476.77,  5090590.47,      52.248757,       -2.125541,   89485.61,  130788.83,    2102.69,             4999.73,  -144.52,  23358.34,           28037.88,      8.67,     24.01,          40.25,  +3.01,  +2.43
  3,     UK003T,       0,  0.227270, 2459487.350248051342, 301.36402,   6.15417,              195.90058,  42.10288,       195.91399,       42.10034,    301.36402,      +6.15417,     301.35463,       +6.15331,  2694616.23, -2911990.39,  5089356.84,      52.245431,       -2.122868,   88215.89,  130146.43,    3441.17,             6338.22,    90.12,  33312.19,           28037.88,     -7.92,    -21.93,          36.96,  +2.49,  +1.92
  4,     UK003T,       0,  0.267410, 2459487.350248516072, 301.39924,   5.76343,              195.76760,  41.72326,       195.79069,       41.71889,    301.39924,      +5.76343,     301.38250,       +5.76195,  2694478.68, -2911622.89,  5088424.70,      52.242917,       -2.120889,   87256.48,  129668.59,    4452.53,             7349.58,    -1.27,  25195.85,           27841.47,    -13.66,    -37.84,          63.99,  +2.57,  +2.01
  5,     UK003T,       0,  0.307566, 2459487.350248980802, 301.40349,   5.40624,              195.68393,  41.37157,       195.68060,       41.37220,    301.40349,      +5.40624,     301.40731,       +5.40645,  2694354.61, -2911291.38,  5087583.88,      52.240648,       -2.119120,   86391.03,  129243.02,    5364.83,             8261.87,  -192.15,  22718.73,           27053.64,      1.97,      5.47,           9.28,  +2.80,  +2.24
  6,     UK003T,       0,  0.347734, 2459487.350249445532, 301.45637,   4.92293,              195.51083,  40.90321,       195.53002,       40.89958,    301.45637,      +4.92293,     301.44282,       +4.92169,  2694186.71, -2910842.79,  5086446.06,      52.237577,       -2.116666,   85219.94,  128674.37,    6599.36,             9496.40,   -61.14,  30734.10,           27166.64,    -11.40,    -31.59,          53.83,  +2.65,  +2.10
  7,     UK003T,       1,  0.387862, 2459487.350249910261, 301.45851,   4.62784,              195.44537,  40.61230,       195.44248,       40.61285,    301.45851,      +4.62784,     301.46234,       +4.62802,  2694085.72, -2910572.95,  5085761.67,      52.235729,       -2.115256,   84515.48,  128337.69,    7341.92,            10238.96,  -420.99,  18504.92,           26492.53,      1.72,      4.76,           8.14,  +5.75,  +5.21
  0,     UK003U,       0,  0.011567, 2459487.350245547015, 301.17606,   8.56403,              196.71609,  44.44592,       196.71427,       44.44626,    301.17606,      +8.56403,     301.17741,       +8.56414,  2695487.14, -2914317.33,  5095258.84,      52.261332,       -2.135548,   94290.65,  133311.74,       0.00,               65.44,  -256.76,      0.00,           30067.30,      1.06,      2.94,           4.83,  +4.10,  +3.48
  1,     UK003U,       0,  0.092315, 2459487.350246481597, 301.25646,   7.59568,              196.37458,  43.50589,       196.38389,       43.50412,    301.25646,      +7.59568,     301.24978,       +7.59509,  2695132.00, -2913368.47,  5092852.15,      52.254852,       -2.130348,   91813.50,  131992.38,    2611.25,             2545.81,     5.28,  32338.26,           30067.30,     -5.46,    -15.12,          25.12,  +4.09,  +3.49
  2,     UK003U,       0,  0.132647, 2459487.350246948190, 301.27337,   7.15640,              196.24918,  43.07588,       196.23864,       43.07787,    301.27337,      +7.15640,     301.28186,       +7.15707,  2694973.76, -2912945.66,  5091779.76,      52.251963,       -2.128048,   90709.72,  131417.11,    3774.80,             3709.36,    60.80,  28849.23,           30067.30,      6.19,     17.15,          28.62,  +3.78,  +3.19
  3,     UK003U,       0,  0.172947, 2459487.350247414783, 301.29310,   6.75864,              196.13121,  42.68712,       196.10940,       42.69125,    301.29310,      +6.75864,     301.31039,       +6.76001,  2694831.50, -2912565.57,  5090815.70,      52.249364,       -2.125997,   89717.44,  130906.83,    4820.79,             4755.35,    -0.34,  25955.20,           30067.30,     12.85,     35.59,          59.61,  +2.69,  +2.11
  4,     UK003U,       0,  0.213275, 2459487.350247881375, 301.31581,   6.32128,              196.00182,  42.25971,       195.96851,       42.26601,    301.31581,      +6.32128,     301.34216,       +6.32339,  2694676.32, -2912150.96,  5089764.09,      52.246529,       -2.123744,   88635.06,  130357.26,    5961.79,             5896.35,    32.75,  28292.91,           29424.21,     19.65,     54.45,          91.60,  +2.62,  +2.04
  5,     UK003U,       0,  0.253587, 2459487.350248347968, 301.33966,   5.91002,              195.87839,  41.85809,       195.83812,       41.86570,    301.33966,      +5.91002,     301.37167,       +5.91258,  2694531.50, -2911764.02,  5088782.66,      52.243882,       -2.121653,   87624.91,  129851.42,    7026.63,             6961.20,    -9.87,  26415.12,           28846.62,     23.81,     65.96,         111.39,  +3.11,  +2.54
  6,     UK003U,       0,  0.293875, 2459487.350248814560, 301.35636,   5.52955,              195.77257,  41.48555,       195.71961,       41.49556,    301.35636,      +5.52955,     301.39850,       +5.53293,  2694398.66, -2911409.07,  5087882.39,      52.241453,       -2.119747,   86698.28,  129393.53,    8003.43,             7937.99,  -139.89,  24245.29,           28191.34,     31.36,     86.91,         147.28,  +3.60,  +3.04
  7,     UK003U,       0,  0.334183, 2459487.350249281153, 301.42106,   5.14597,              195.60464,  41.11762,       195.60023,       41.11846,    301.42106,      +5.14597,     301.42584,       +5.14625,  2694264.31, -2911050.11,  5086971.92,      52.238996,       -2.117818,   85761.16,  128936.27,    8991.28,             8925.84,  -259.40,  24507.62,           27620.53,      2.62,      7.26,          12.35,  +3.75,  +3.20
  8,     UK003U,       0,  0.374503, 2459487.350249747746, 301.42835,   4.71378,              195.50269,  40.69230,       195.46829,       40.69880,    301.42835,      +4.71378,     301.45675,       +4.71600,  2694115.92, -2910653.64,  5085966.31,      52.236282,       -2.115669,   84726.13,  128437.89,   10082.37,            10016.93,  -276.00,  27060.67,           27300.41,     20.46,     56.68,          96.78,  +4.27,  +3.73
  0,     UK003X,       0,  0.000000, 2459487.350245415233,  18.41042,  81.39184,               13.59157,  54.45981,        13.58688,       54.45817,     18.41042,     +81.39184,      18.41683,      +81.39487,  2695478.51, -2914294.28,  5095200.38,      52.261175,       -2.135366,   94230.47,  115218.15,       0.00,                2.00,    -2.43,      0.00,           26947.93,     -1.24,     -6.27,          11.44,  +4.71,  +4.40
  1,     UK003X,       0,  0.040156, 2459487.350245879963,  19.72598,  81.32625,               13.77501,  54.28107,        13.76405,       54.27726,     19.72598,     +81.32625,      19.74222,      +81.33330,  2695337.15, -2913916.58,  5094242.39,      52.258596,       -2.133330,   93244.44,  114267.90,    1039.41,             1037.41,   -70.20,  25884.29,           26947.93,     -2.88,    -14.58,          26.84,  +3.54,  +3.25
  2,     UK003X,       0,  0.080316, 2459487.350246345159,  21.02458,  81.25171,               13.96460,  54.10238,        13.94133,       54.09429,     21.02458,     +81.25171,      21.06113,      +81.26659,  2695196.73, -2913541.41,  5093290.79,      52.256033,       -2.131308,   92264.98,  113325.48,    2071.89,             2069.89,  -141.02,  25709.20,           26947.93,     -6.09,    -30.78,          57.11,  +3.36,  +3.09
  3,     UK003X,       0,  0.120508, 2459487.350246810354,  22.58837,  81.18220,               14.14827,  53.87837,        14.14923,       53.87870,     22.58837,     +81.18220,      22.58723,      +81.18159,  2695034.60, -2913108.22,  5092192.07,      52.253074,       -2.128948,   91134.10,  112239.54,    3264.00,             3261.99,   -53.08,  29660.29,           26947.93,      0.25,      1.27,           2.37,  +2.89,  +2.64
  4,     UK003X,       0,  0.160708, 2459487.350247275550,  24.13218,  81.06533,               14.39884,  53.65822,        14.36938,       53.64801,     24.13218,     +81.06533,      24.18456,      +81.08389,  2694864.85, -2912654.66,  5091041.68,      52.249973,       -2.126467,   89950.04,  111104.89,    4512.18,             4510.17,    90.70,  31049.20,           27998.91,     -7.61,    -38.47,          72.81,  +2.49,  +2.26
  5,     UK003X,       0,  0.200880, 2459487.350247740280,  25.49684,  81.03664,               14.48559,  53.45031,        14.53714,       53.46809,     25.49684,     +81.03664,      25.40324,      +81.00438,  2694734.80, -2912307.20,  5090160.37,      52.247598,       -2.124606,   89042.92,  110236.86,    5468.39,             5466.39,   -56.70,  23803.12,           27699.67,     13.30,     66.94,         127.70,  +2.38,  +2.17
  6,     UK003X,       0,  0.241076, 2459487.350248205476,  26.98370,  80.92168,               14.70941,  53.22737,        14.74870,       53.24090,     26.98370,     +80.92168,      26.90932,      +80.89730,  2694573.90, -2911877.31,  5089070.01,      52.244657,       -2.122263,   87920.67,  109165.34,    6651.43,             6649.42,    22.05,  29431.58,           27778.46,     10.07,     50.70,          97.66,  +2.93,  +2.74
  7,     UK003X,       0,  0.281240, 2459487.350248670671,  28.16769,  80.79703,               14.93431,  53.04652,        14.92825,       53.04443,     28.16769,     +80.79703,      28.18085,      +80.80076,  2694437.34, -2911512.43,  5088144.53,      52.242161,       -2.120299,   86968.10,  108257.35,    7655.57,             7653.57,   -77.21,  25001.13,           27579.94,     -1.54,     -7.78,          15.11,  +2.74,  +2.57
  8,     UK003X,       0,  0.321424, 2459487.350249135401,  29.49801,  80.69820,               15.10933,  52.83583,        15.11530,       52.83788,     29.49801,     +80.69820,      29.48703,      +80.69455,  2694296.41, -2911135.89,  5087189.48,      52.239583,       -2.118267,   85985.10,  107322.17,    8691.79,             8689.79,  -144.94,  25786.95,           27367.75,      1.51,      7.62,          14.94,  +2.92,  +2.77
  9,     UK003X,       0,  0.361588, 2459487.350249600597,  30.65877,  80.61999,               15.24090,  52.64803,        15.27399,       52.65938,     30.65877,     +80.61999,      30.59036,      +80.59995,  2694176.59, -2910815.75,  5086377.48,      52.237392,       -2.116564,   85149.32,  106528.21,    9572.81,             9570.81,  -367.33,  21935.41,           26963.55,      8.35,     42.04,          82.99,  +3.74,  +3.60

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.