Orbital Analysis for matched events on 20210810_230136.028_UK

Summary for Event
-----------------
shower ID 197 AUD
Lg 294.12° Bg 76.35° Vg 21.30km/s
mass 0.05372g, abs. mag 1.5
Path Details
------------
start 0.29° 51.36° 94.45km
end   0.33° 51.35° 82.50km

Orbit Details
-------------
Semimajor axis 2.87A.U., eccentricity 0.65, inclination 33.36°, Period 4.86Y, LA Sun 138.23°, last Perihelion 2016-10-14

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: 2459437.459444776177
Time: 2021-08-10 23:01:36.055578 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK000C and UK002B
 Convergence angle = 19.17600 deg
 R.A. = 282.20291  Dec = +53.93005 deg

Best intersection: Stations UK000C and UK002B with Qconv = 19.18 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   2341968.38 +/- 42.56 m
 Y =  -3304996.37 +/- 19.66 m
 Z =   5032777.93 +/- 39.88 m
 Vx =     2715.93 +/- 117.45 m/s
 Vy =   -13952.73 +/- 37.88 m/s
 Vz =    19371.16 +/- 108.98 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.880194e+03, +5.015334e+02, +1.643417e+03, +4.755893e+03, +1.519269e+03, +4.385997e+03
+5.015334e+02, +4.087641e+02, +2.404120e+02, +1.500165e+03, +5.730751e+02, +1.524173e+03
+1.643417e+03, +2.404120e+02, +1.690766e+03, +4.065648e+03, +1.368165e+03, +3.759811e+03
+4.755893e+03, +1.500165e+03, +4.065648e+03, +1.454475e+04, +4.633776e+03, +1.306801e+04
+1.519269e+03, +5.730751e+02, +1.368165e+03, +4.633776e+03, +1.836271e+03, +4.435760e+03
+4.385997e+03, +1.524173e+03, +3.759811e+03, +1.306801e+04, +4.435760e+03, +1.215142e+04

Timing offsets (from input data):
    UK000C: 0.000424 s
    UK002B: 0.000000 s

Reference point on the trajectory:
  Time: 2021-08-10 23:01:36.055578 UTC
  Lon     = ++0.282859 +/- 0.0006 deg
  Lat     = +51.356053 +/- 0.0001 deg
  Lat geo = +51.170977 +/- 0.0001 deg
  Ht      =   95213.03 +/- 42.56 m

  JD dynamic   = 2459437.460245828610 
  LST apparent = 305.3219397681 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 281.01501 +/- 0.4987 deg
  Dec       = +53.72868 +/- 0.1807 deg
  Azimuth   = 288.68566 +/- 0.7405 deg
  Elevation = +75.10365 +/- 0.2899 deg
  Vavg      =  23.27233 +/- 0.0837 km/s
  Vinit     =  24.02700 +/- 0.0799 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 282.10929 +/- 0.4987 deg
  Dec       = +53.95817 +/- 0.1807 deg
  Azimuth   = 289.60506 +/- 0.7405 deg
  Elevation = +75.74862 +/- 0.2899 deg
  Vavg      =  23.20211 +/- 0.0837 km/s
  Vinit     =  23.95678 +/- 0.0799 km/s
Radiant (geocentric, J2000):
  R.A.   = 279.37330 +/- 0.5340 deg
  Dec    = +53.69862 +/- 0.1963 deg
  Vg     =  21.30498 +/- 0.0900 km/s
  Vinf   =  24.02700 +/- 0.0799 km/s
  Zc     =  14.95665 +/- 0.2878 deg
  Zg     =  15.85986 +/- 0.3115 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 294.11730 +/- 1.5250 deg
  Bg     = +76.35072 +/- 0.1013 deg
  Vh     =  37.96638 +/- 0.0496 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 237.05422 +/- 0.1106 deg
  Bh     = +33.04718 +/- 0.2197 deg
  Vh_x   =  17.30746 +/- 0.1149 km/s
  Vh_y   =  26.70645 +/- 0.0711 km/s
  Vh_z   = -20.70418 +/- 0.0950 km/s
Orbit:
  La Sun = 138.229737 +/- -0.0000 deg
  a      =   2.870747 +/- 0.0337 AU
  e      =   0.654318 +/- 0.0040
  i      =  33.359362 +/- 0.2284 deg
  peri   = 198.719763 +/- 0.2559 deg
  node   = 138.235744 +/- 0.0000 deg
  Pi     = 336.955508 +/- 0.2559 deg
  q      =   0.992366 +/- 0.0005 AU
  f      = 341.273397 +/- 0.2559 deg
  M      = 356.998613 +/- 0.0995 deg
  Q      =   4.749128 +/- 0.0670 AU
  n      =   0.202634 +/- 0.0037 deg/day
  T      =   4.863993 +/- 0.0851 years
  Last perihelion JD = 2457675.667733 (2016-10-14 04:01:32.159937) +/- 31.2718 days
  Tj     =   2.751084 +/- 0.0183
Shower association:
  IAU No.  =  197
  IAU code =  AUD

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +1.742764e-05, +1.931258e-06, -1.349608e-01, +3.499791e-09, -1.754919e-05, -1.640309e-05
q   , +1.931258e-06, +2.638772e-07, -1.503920e-02, +4.217497e-10, -2.325251e-06, -1.981279e-06
Tp  , -1.349608e-01, -1.503920e-02, +1.045359e+03, -2.713279e-05, +1.365406e-01, +1.271717e-01
node, +3.499791e-09, +4.217497e-10, -2.713279e-05, +7.481307e-13, -3.782113e-09, -3.512150e-09
peri, -1.754919e-05, -2.325251e-06, +1.365406e-01, -3.782113e-09, +2.057562e-05, +1.776121e-05
i   , -1.640309e-05, -1.981279e-06, +1.271717e-01, -3.512150e-09, +1.776121e-05, +1.648875e-05

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.032910
 a2 = 16.441266

Mean time residuals from time vs. length:
  Station with reference time: UK002B
  Avg. res. = 1.077e-05 s
  Stddev    = 3.28e-03 s

Begin point on the trajectory:
  Lon =     0.285577 +/- 0.0005 deg
  Lat =    51.355477 +/- 0.0001 deg
  Ht  = 94450.50 +/- 46.84 m
End point on the trajectory:
  Lon =     0.326005 +/- 0.0005 deg
  Lat =    51.346431 +/- 0.0001 deg
  Ht  = 82500.66 +/- 22.13 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
    UK000C,   False,    -0.727590,    51.263100,   57.00,   0.032668,  16.005573,    94450.50,    82640.43,          0.007405,     14.55,      3.41,              49.23, 1.0000,    True,    True, {"ff_name": "FF_UK000C_20210810_230130_575_0249088.fits"}
    UK002B,   False,    -1.367130,    50.815550,   22.00,   0.088388,  14.879942,    93335.36,    82500.66,          0.006901,     18.71,      4.07,              63.37, 1.0000,    True,    True, {"ff_name": "FF_UK002B_20210810_230135_776_0253440.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,     UK000C,       0,  0.027334, 2459437.459445087705, 359.24476,  42.49489,               81.30731,  52.37344,        81.32758,       52.37530,    359.24476,     +42.49489,     359.23362,      +42.48552,  2341879.19, -3304538.16,  5032141.78,      51.355477,       +0.285577,   94450.50,  118667.98,       0.00,              789.05,   123.35,      0.00,           23046.84,      5.92,     25.23,          45.05,  +2.93,  +2.56
  1,     UK000C,       0,  0.067570, 2459437.459445553366, 359.56779,  42.28029,               81.38791,  52.05637,        81.40498,       52.05794,    359.56779,     +42.28029,     359.55851,      +42.27237,  2341781.15, -3304034.47,  5031442.49,      51.354844,       +0.288398,   93612.28,  118113.17,     867.36,             1656.41,    23.95,  21556.81,           23046.84,      5.00,     21.31,          38.22,  +1.54,  +1.18
  2,     UK000C,       0,  0.107814, 2459437.459446019027, 359.90032,  42.04160,               81.49084,  51.71918,        81.48650,       51.71878,    359.90032,     +42.04160,     359.90322,      +42.04362,  2341677.47, -3303501.86,  5030703.04,      51.354175,       +0.291391,   92725.92,  117530.97,    1784.54,             2573.59,   -25.81,  22790.41,           23046.84,     -1.27,     -5.43,           9.78,  +1.42,  +1.07
  3,     UK000C,       0,  0.148098, 2459437.459446485620,   0.28575,  41.79380,               81.56624,  51.34307,        81.57519,       51.34389,      0.28575,     +41.79380,       0.28127,      +41.78961,  2341564.20, -3302919.93,  5029895.12,      51.353443,       +0.294677,   91757.48,  116900.37,    2786.64,             3575.69,     8.39,  24875.99,           23046.84,      2.64,     11.24,          20.36,  +1.15,  +0.81
  4,     UK000C,       0,  0.188370, 2459437.459446951747,   0.64701,  41.53799,               81.66339,  50.97625,        81.66081,       50.97601,      0.64701,     +41.53799,       0.64928,      +41.53920,  2341454.20, -3302354.79,  5029110.52,      51.352732,       +0.297864,   90816.98,  116292.71,    3759.82,             4548.87,    13.95,  24165.10,           23445.07,     -0.76,     -3.24,           5.90,  +0.70,  +0.37
  5,     UK000C,       0,  0.228658, 2459437.459447417874,   1.03742,  41.28848,               81.72793,  50.59374,        81.74793,       50.59557,      1.03742,     +41.28848,       1.02680,      +41.27906,  2341341.68, -3301776.74,  5028307.98,      51.352004,       +0.301130,   89854.98,  115676.43,    4755.25,             5544.30,    41.38,  24707.90,           23739.34,      5.91,     25.21,          46.17,  +0.74,  +0.42
  6,     UK000C,       0,  0.268922, 2459437.459447884001,   1.37322,  41.03037,               81.83555,  50.23900,        81.82843,       50.23835,      1.37322,     +41.03037,       1.37850,      +41.03374,  2341237.02, -3301239.11,  5027561.57,      51.351327,       +0.304155,   88960.24,  115107.44,    5681.06,             6470.12,    -0.23,  22993.61,           23764.49,     -2.11,     -8.99,          16.55,  +0.56,  +0.25
  7,     UK000C,       0,  0.309186, 2459437.459448349662,   1.71832,  40.78365,               81.91781,  49.88389,        81.90733,       49.88293,      1.71832,     +40.78365,       1.72578,      +40.78863,  2341133.91, -3300709.37,  5026826.11,      51.350660,       +0.307135,   88078.63,  114551.20,    6593.29,             7382.34,   -55.42,  22656.13,           23682.61,     -3.12,    -13.28,          24.56,  +0.56,  +0.27
  8,     UK000C,       0,  0.349494, 2459437.459448816255,   2.11440,  40.50323,               82.00360,  49.47660,        81.99626,       49.47593,      2.11440,     +40.50323,       2.12021,      +40.50672,  2341017.23, -3300109.95,  5025993.92,      51.349904,       +0.310530,   87081.07,  113928.26,    7625.50,             8414.55,     8.31,  25608.05,           23772.90,     -2.19,     -9.31,          17.32,  +0.47,  +0.19
  9,     UK000C,       0,  0.389778, 2459437.459449282847,   2.47541,  40.24750,               82.07731,  49.10415,        82.07622,       49.10405,      2.47541,     +40.24750,       2.47769,      +40.24802,  2340911.61, -3299567.35,  5025240.61,      51.349220,       +0.313588,   86178.05,  113368.74,    8559.87,             9348.92,   -25.23,  23194.49,           23787.29,     -0.33,     -1.39,           2.60,  +0.54,  +0.27
 10,     UK000C,       0,  0.430058, 2459437.459449748974,   2.83019,  39.97987,               82.16555,  48.72748,        82.15614,       48.72662,      2.83019,     +39.97987,       2.83766,      +39.98438,  2340805.49, -3299022.17,  5024483.71,      51.348533,       +0.316662,   85270.72,  112811.54,    9498.69,            10287.74,   -54.22,  23307.32,           23773.32,     -2.82,    -12.02,          22.57,  +0.72,  +0.46
 11,     UK000C,       0,  0.470354, 2459437.459450215101,   3.20230,  39.72393,               82.22323,  48.34584,        82.23532,       48.34694,      3.20230,     +39.72393,       3.19692,      +39.71811,  2340699.80, -3298479.17,  5023729.83,      51.347847,       +0.319724,   84367.01,  112261.54,   10433.76,            11222.81,   -87.34,  23205.01,           23743.39,      3.63,     15.47,          29.20,  +0.96,  +0.71
 12,     UK000C,       0,  0.510662, 2459437.459450681694,   3.58079,  39.43478,               82.31217,  47.93941,        82.31889,       47.94002,      3.58079,     +39.43478,       3.57881,      +39.43154,  2340587.74, -3297903.47,  5022930.57,      51.347120,       +0.322981,   83408.89,  111684.42,   11425.12,            12214.17,   -64.46,  24594.70,           23753.39,      2.02,      8.62,          16.35,  +1.26,  +1.02
 13,     UK000C,       0,  0.550906, 2459437.459451147355,   3.87474,  39.19314,               82.39807,  47.61264,        82.38536,       47.61147,      3.87474,     +39.19314,       3.88487,      +39.19930,  2340497.86, -3297441.76,  5022289.55,      51.346537,       +0.325560,   82640.43,  111224.18,   12220.21,            13009.26,  -236.31,  19756.67,           23645.58,     -3.83,    -16.34,          31.12,  +2.66,  +2.43
  0,     UK002B,       1,  0.000000, 2459437.459444776177,  28.23722,  43.72455,               61.92974,  35.38012,        61.87762,       35.37129,     28.23722,     +43.72455,      28.28407,      +43.75172,  2341973.14, -3305020.78,  5032811.82,      51.356084,       +0.282827,   95253.65,  162179.90,       0.00,               42.03,    33.08,      0.00,           24876.43,    -26.10,   -120.06,         156.27,  +4.60,  +3.55
  1,     UK002B,       0,  0.080544, 2459437.459445708431,  28.82466,  43.25716,               62.03583,  34.75359,        62.03039,       34.75267,     28.82466,     +43.25716,      28.82991,      +43.26000,  2341748.76, -3303868.07,  5031211.47,      51.354635,       +0.289329,   93335.36,  161317.74,    1984.99,             1942.96,    -1.22,  24644.80,           24876.43,     -2.73,    -12.56,          16.43,  +2.76,  +1.72
  2,     UK002B,       0,  0.120792, 2459437.459446174093,  29.06825,  43.03022,               62.10775,  34.47148,        62.09925,       34.47004,     29.06825,     +43.03022,      29.07644,      +43.03464,  2341646.98, -3303345.21,  5030485.56,      51.353978,       +0.292265,   92465.22,  160932.37,    2885.38,             2843.34,   -67.87,  22370.94,           24876.43,     -4.26,    -19.62,          25.73,  +2.61,  +1.58
  3,     UK002B,       0,  0.161112, 2459437.459446640685,  29.39154,  42.73599,               62.19371,  34.10047,        62.18929,       34.09973,     29.39154,     +42.73599,      29.39623,      +42.73829,  2341514.62, -3302665.19,  5029541.47,      51.353122,       +0.296133,   91333.56,  160439.88,    4056.38,             4014.35,   134.36,  29042.81,           24876.43,     -2.22,    -10.23,          13.46,  +2.39,  +1.36
  4,     UK002B,       0,  0.201340, 2459437.459447106346,  29.62836,  42.53744,               62.23905,  33.83902,        62.25117,       33.84107,     29.62836,     +42.53744,      29.61819,      +42.53114,  2341422.42, -3302191.54,  5028883.87,      51.352526,       +0.298778,   90545.29,  160098.34,    4872.03,             4830.00,   -16.54,  20275.72,           24455.06,      6.10,     28.07,          37.00,  +2.23,  +1.21
  5,     UK002B,       0,  0.241604, 2459437.459447572473,  29.87439,  42.28079,               62.33020,  33.53387,        62.32472,       33.53294,     29.87439,     +42.28079,      29.88039,      +42.28364,  2341313.25, -3301630.69,  5028105.23,      51.351820,       +0.301941,   89611.93,  159699.94,    5837.82,             5795.79,   -18.18,  23986.43,           24248.24,     -2.76,    -12.71,          16.80,  +1.82,  +0.80
  6,     UK002B,       0,  0.281916, 2459437.459448039066,  30.17402,  41.98567,               62.42243,  33.17258,        62.41081,       33.17061,     30.17402,     +41.98567,      30.18579,      +41.99171,  2341185.71, -3300975.48,  5027195.57,      51.350995,       +0.305666,   88521.53,  159242.10,    6966.11,             6924.08,   141.54,  27988.95,           24499.64,     -5.86,    -26.94,          35.71,  +1.76,  +0.75
  7,     UK002B,       0,  0.322164, 2459437.459448504727,  30.41468,  41.76112,               62.48311,  32.88983,        62.47689,       32.88877,     30.41468,     +41.76112,      30.42171,      +41.76435,  2341086.85, -3300467.61,  5026490.46,      51.350355,       +0.308516,   87676.30,  158889.80,    7840.69,             7798.66,    49.08,  21729.72,           24414.68,     -3.14,    -14.44,          19.18,  +1.84,  +0.83
  8,     UK002B,       0,  0.362428, 2459437.459448970854,  30.68146,  41.52434,               62.53747,  32.58368,        62.54766,       32.58541,     30.68146,     +41.52434,      30.67365,      +41.51905,  2340980.99, -3299923.77,  5025735.44,      51.349670,       +0.311581,   86771.22,  158517.62,    8777.19,             8735.16,    18.15,  23258.94,           24303.06,      5.15,     23.68,          31.54,  +1.89,  +0.89
  9,     UK002B,       0,  0.402656, 2459437.459449436516,  30.88877,  41.30241,               62.61181,  32.32008,        62.60905,       32.31962,     30.88877,     +41.30241,      30.89298,      +41.30384,  2340888.57, -3299448.95,  5025076.22,      51.349071,       +0.314236,   85980.98,  158195.32,    9594.85,             9552.81,  -130.75,  20325.53,           24045.35,     -1.39,     -6.41,           8.55,  +2.10,  +1.10
 10,     UK002B,       0,  0.442936, 2459437.459449902643,  31.15158,  41.03333,               62.69301,  31.99325,        62.68465,       31.99184,     31.15158,     +41.03333,      31.16111,      +41.03767,  2340775.28, -3298866.95,  5024268.20,      51.348337,       +0.317529,   85012.38,  157807.13,   10597.07,            10555.04,   -96.33,  24881.54,           23934.29,     -4.23,    -19.47,          26.05,  +2.27,  +1.28
 11,     UK002B,       0,  0.483204, 2459437.459450368769,  31.41964,  40.79424,               62.74257,  31.68272,        62.75484,       31.68480,     31.41964,     +40.79424,      31.41037,      +40.78788,  2340669.62, -3298324.15,  5023514.62,      51.347652,       +0.320590,   84109.01,  157449.34,   11531.78,            11489.75,  -129.15,  23212.07,           23842.20,      6.22,     28.60,          38.34,  +2.62,  +1.63
 12,     UK002B,       0,  0.523464, 2459437.459450834896,  31.65382,  40.53958,               62.82388,  31.38008,        62.82402,       31.38010,     31.65382,     +40.53958,      31.65588,      +40.53952,  2340565.25, -3297787.93,  5022770.16,      51.346975,       +0.323613,   83216.57,  157100.39,   12455.17,            12413.14,  -173.08,  22935.83,           23756.96,      0.07,      0.31,           0.42,  +3.29,  +2.31
 13,     UK002B,       0,  0.563676, 2459437.459451300092,  31.84402,  40.33638,               62.88534,  31.13617,        62.87897,       31.13509,     31.84402,     +40.33638,      31.85224,      +40.33967,  2340481.52, -3297357.80,  5022172.98,      51.346431,       +0.326005,   82500.66,  156822.03,   13195.87,            13153.84,  -398.55,  18419.87,           23557.31,     -3.23,    -14.85,          19.99,  +4.52,  +3.54

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.