Orbital Analysis for matched events on 20210929_035741.285_UK

Summary for Event
-----------------
shower ID -1 spo
Lg 143.20° Bg 48.75° Vg 43.51km/s
mass 0.01535g, abs. mag 1.3
Path Details
------------
start -1.05° 51.46° 105.84km
end   -1.23° 51.31° 91.33km

Orbit Details
-------------
Semimajor axis 5.17A.U., eccentricity 0.86, inclination 72.60°, Period 11.77Y, LA Sun 185.94°, last Perihelion 2021-08-21

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: 2459486.665061177686
Time: 2021-09-29 03:57:41.285752 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK000S and UK002W
 Convergence angle = 55.04309 deg
 R.A. = 171.82614  Dec = +58.18880 deg

Best intersection: Stations UK000S and UK002W with Qconv = 55.04 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   1613388.90 +/- 117.65 m
 Y =   3712999.27 +/- 62.26 m
 Z =   5048131.38 +/- 226.51 m
 Vx =   -23313.44 +/- 202.45 m/s
 Vy =     3209.13 +/- 176.63 m/s
 Vz =    38248.21 +/- 546.48 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.565086e+04, -6.362160e+03, -2.820212e+04, +1.146273e+04, -1.375578e+04, -2.487734e+04
-6.362160e+03, +4.060494e+03, +1.223392e+04, -9.114013e+03, +1.004906e+04, +2.029371e+04
-2.820212e+04, +1.223392e+04, +5.395962e+04, -2.619060e+04, +2.851021e+04, +6.516143e+04
+1.146273e+04, -9.114013e+03, -2.619060e+04, +5.155121e+04, -3.189707e+04, -1.097999e+05
-1.375578e+04, +1.004906e+04, +2.851021e+04, -3.189707e+04, +2.929472e+04, +7.251518e+04
-2.487734e+04, +2.029371e+04, +6.516143e+04, -1.097999e+05, +7.251518e+04, +2.670184e+05

Timing offsets (from input data):
    UK000S: 0.000000 s
    UK002W: 0.001198 s

Reference point on the trajectory:
  Time: 2021-09-29 03:57:41.285752 UTC
  Lon     = +-1.046048 +/- 0.0018 deg
  Lat     = +51.456538 +/- 0.0012 deg
  Lat geo = +51.271910 +/- 0.0013 deg
  Ht      =  105792.24 +/- 180.25 m

  JD dynamic   = 2459486.665861918591 
  LST apparent = 66.5138761685 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 172.16241 +/- 0.3477 deg
  Dec       = +58.39694 +/- 0.1311 deg
  Azimuth   =  38.19943 +/- 0.1381 deg
  Elevation = +35.31476 +/- 0.1948 deg
  Vavg      =  44.49811 +/- 0.3091 km/s
  Vinit     =  44.90813 +/- 0.5787 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 171.97085 +/- 0.3477 deg
  Dec       = +58.08892 +/- 0.1311 deg
  Azimuth   =  38.56037 +/- 0.1381 deg
  Elevation = +35.18003 +/- 0.1948 deg
  Vavg      =  44.64779 +/- 0.3091 km/s
  Vinit     =  45.05782 +/- 0.5787 km/s
Radiant (geocentric, J2000):
  R.A.   = 173.15509 +/- 0.3729 deg
  Dec    = +57.87754 +/- 0.1475 deg
  Vg     =  43.51490 +/- 0.5967 km/s
  Vinf   =  44.90813 +/- 0.5787 km/s
  Zc     =  54.83041 +/- 0.1949 deg
  Zg     =  55.76691 +/- 0.2199 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 143.19616 +/- 0.3373 deg
  Bg     = +48.74921 +/- 0.1072 deg
  Vh     =  39.99467 +/- 0.3725 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 212.41519 +/- 1.0706 deg
  Bh     = +54.89122 +/- 0.3706 deg
  Vh_x   =  19.41809 +/- 0.2307 km/s
  Vh_y   =  12.33032 +/- 0.3689 km/s
  Vh_z   = -32.71810 +/- 0.4501 km/s
Orbit:
  La Sun = 185.938224 +/- 0.0000 deg
  a      =   5.172931 +/- 1.5764 AU
  e      =   0.861912 +/- 0.0238
  i      =  72.598055 +/- 0.8222 deg
  peri   = 112.339066 +/- 1.1320 deg
  node   = 185.940408 +/- 0.0000 deg
  Pi     = 298.279474 +/- 1.1319 deg
  q      =   0.714320 +/- 0.0047 AU
  f      =  67.660286 +/- 1.1320 deg
  M      =   3.241564 +/- 0.7869 deg
  Q      =   9.631543 +/- 3.1484 AU
  n      =   0.083772 +/- 0.0196 deg/day
  T      =  11.765373 +/- 6.3103 years
  Last perihelion JD = 2459447.970800 (2021-08-21 11:17:57.128389) +/- 0.7130 days
  Tj     =   1.308438 +/- 0.1875
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +5.354287e-04, +9.638140e-05, +1.594313e-02, -3.617790e-09, +4.321580e-04, +3.087265e-04
q   , +9.638140e-05, +2.073765e-05, +2.991688e-03, -6.279579e-10, +8.560025e-05, +5.359511e-05
Tp  , +1.594313e-02, +2.991688e-03, +4.791949e-01, -1.068629e-07, +1.315089e-02, +9.118993e-03
node, -3.617790e-09, -6.279579e-10, -1.068629e-07, +2.674415e-14, -2.865430e-09, -2.283950e-09
peri, +4.321580e-04, +8.560025e-05, +1.315089e-02, -2.865430e-09, +3.668512e-04, +2.445287e-04
i   , +3.087265e-04, +5.359511e-05, +9.118993e-03, -2.283950e-09, +2.445287e-04, +1.950589e-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: UK000S
  Avg. res. = 8.319e-06 s
  Stddev    = 2.88e-03 s

Begin point on the trajectory:
  Lon =    -1.045500 +/- 0.0011 deg
  Lat =    51.456973 +/- 0.0007 deg
  Ht  = 105836.60 +/- 135.04 m
End point on the trajectory:
  Lon =    -1.227296 +/- 0.0007 deg
  Lat =    51.313915 +/- 0.0005 deg
  Ht  = 91327.98 +/- 99.37 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,   False,    -1.778230,    50.857470,   24.00,   0.000000,   0.000000,   105836.60,    91327.98,          0.024451,     28.74,     46.72,              16.34, 1.0000,    True,    True, {"ff_name": "FF_UK000S_20210929_035734_787_0852736.fits"}
    UK002W,   False,    -2.374601,    51.371449,   48.00,   0.000000,   0.000000,   103899.90,    92767.46,          0.016669,     19.31,     31.95,              36.21, 1.0000,    True,    True, {"ff_name": "FF_UK002W_20210929_035734_174_0856320.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,       0,  0.000000, 2459486.665061177686, 141.04057,  66.78978,               37.18579,  50.90588,        37.25969,       50.90690,    141.04057,     +66.78978,     141.00798,      +66.74492,  1613349.06,  3713004.76,  5048196.73,      51.456973,       -1.045500,  105836.60,  135607.86,       0.00,               76.74,   114.87,      0.00,           45078.12,     94.00,    -57.76,         167.81,  +4.88,  +4.22
  1,     UK000S,       0,  0.039812, 2459486.665061638225, 140.45149,  66.82067,               37.22904,  51.13836,        37.24654,       51.13857,    140.45149,     +66.82067,     140.44392,      +66.81007,  1614336.42,  3712868.84,  5046576.87,      51.446188,       -1.059248,  104737.32,  133779.46,    1901.93,             1825.19,    75.44,  47772.66,           45078.12,     21.87,    -13.39,          39.53,  +3.66,  +3.03
  2,     UK000S,       0,  0.079656, 2459486.665062099695, 139.91370,  66.92960,               37.14002,  51.36938,        37.23305,       51.37074,    139.91370,     +66.92960,     139.87574,      +66.87344,  1615299.31,  3712736.30,  5044997.15,      51.435664,       -1.072659,  103665.64,  131998.41,    3756.71,             3679.97,   140.90,  46551.19,           45078.12,    113.97,    -70.18,         209.14,  +2.76,  +2.16
  3,     UK000S,       0,  0.119484, 2459486.665062560700, 139.37655,  66.94344,               37.19563,  51.57740,        37.22007,       51.57771,    139.37655,     +66.94344,     139.36709,      +66.92871,  1616135.04,  3712621.26,  5043626.04,      51.426527,       -1.084318,  102735.74,  130453.77,    5366.56,             5289.82,   -37.85,  40420.09,           45078.12,     29.49,    -18.08,          54.69,  +2.34,  +1.76
  4,     UK000S,       0,  0.159304, 2459486.665063021239, 138.77922,  67.00078,               37.18836,  51.81795,        37.20572,       51.81818,    138.77922,     +67.00078,     138.77296,      +66.99035,  1617083.13,  3712490.76,  5042070.59,      51.416156,       -1.097521,  101681.13,  128704.16,    7192.85,             7116.11,     0.20,  45863.55,           44818.52,     20.55,    -12.60,          38.63,  +2.27,  +1.72
  5,     UK000S,       0,  0.199112, 2459486.665063482244, 138.15236,  67.05586,               37.18450,  52.06871,        37.19068,       52.06879,    138.15236,     +67.05586,     138.15055,      +67.05216,  1618044.72,  3712358.39,  5040493.01,      51.405633,       -1.110909,  100611.85,  126932.08,    9045.13,             8968.39,    64.78,  46530.38,           44988.76,      7.18,     -4.40,          13.68,  +2.02,  +1.50
  6,     UK000S,       0,  0.238936, 2459486.665063943248, 137.52532,  67.14476,               37.12205,  52.32555,        37.17505,       52.32631,    137.52532,     +67.14476,     137.50772,      +67.11314,  1619005.64,  3712226.12,  5038916.51,      51.395111,       -1.124285,   99543.65,  125163.70,   10896.13,            10819.39,   127.35,  46479.52,           45209.30,     60.29,    -37.07,         116.63,  +1.55,  +1.06
  7,     UK000S,       0,  0.278728, 2459486.665064403787, 136.86048,  67.16722,               37.16624,  52.58323,        37.15907,       52.58314,    136.86048,     +67.16722,     136.86352,      +67.17149,  1619937.43,  3712097.86,  5037387.81,      51.384905,       -1.137259,   98508.15,  123451.28,   12691.02,            12614.28,   135.26,  45106.78,           45292.65,     -8.01,      4.91,          15.71,  +2.07,  +1.61
  8,     UK000S,       0,  0.318560, 2459486.665064864792, 136.26496,  67.23979,               37.11689,  52.82326,        37.14329,       52.82363,    136.26496,     +67.23979,     136.25770,      +67.22414,  1620786.30,  3711981.01,  5035995.15,      51.375602,       -1.149092,   97565.07,  121893.06,   14326.17,            14249.43,   -18.37,  41051.20,           45048.72,     28.93,    -17.77,          57.45,  +1.70,  +1.27
  9,     UK000S,       0,  0.358324, 2459486.665065324865, 135.47734,  67.29375,               37.11370,  53.13236,        37.12460,       53.13251,    135.47734,     +67.29375,     135.47526,      +67.28732,  1621848.07,  3711834.86,  5034253.20,      51.363961,       -1.163849,   96385.85,  119948.24,   16371.43,            16294.69,   241.16,  51434.97,           45272.36,     11.67,     -7.17,          23.55,  +1.80,  +1.41
 10,     UK000S,       0,  0.398136, 2459486.665065785870, 134.83022,  67.34002,               37.10279,  53.38608,        37.10752,       53.38615,    134.83022,     +67.34002,     134.83016,      +67.33724,  1622693.03,  3711718.55,  5032866.95,      51.354692,       -1.175625,   95447.69,  118402.20,   17999.06,            17922.32,    80.91,  40882.87,           45194.89,      4.97,     -3.05,          10.17,  +1.68,  +1.31
 11,     UK000S,       0,  0.437928, 2459486.665066246409, 134.11851,  67.37540,               37.11126,  53.66230,        37.08917,       53.66201,    134.11851,     +67.37540,     134.12544,      +67.38832,  1623588.23,  3711595.32,  5031398.28,      51.344869,       -1.188090,   94454.05,  116767.09,   19723.46,            19646.73,    18.33,  43335.46,           45078.73,    -22.75,     13.95,          47.14,  +1.67,  +1.33
 12,     UK000S,       0,  0.477704, 2459486.665066706482, 133.32469,  67.44332,               37.06640,  53.97359,        37.06890,       53.97362,    133.32469,     +67.44332,     133.32566,      +67.44186,  1624571.13,  3711460.02,  5029785.73,      51.334078,       -1.201759,   93363.41,  114975.42,   21616.80,            21540.06,   125.40,  47600.01,           45091.54,      2.52,     -1.55,           5.31,  +1.83,  +1.53
 13,     UK000S,       0,  0.517508, 2459486.665067167487, 132.61935,  67.51072,               37.00812,  54.24995,        37.04953,       54.25058,    132.61935,     +67.51072,     132.61214,      +67.48676,  1625418.50,  3711343.38,  5028395.52,      51.324770,       -1.213564,   92423.41,  113432.99,   23249.08,            23172.34,   -29.84,  41007.88,           44982.95,     40.80,    -25.14,          87.14,  +3.28,  +3.01
 14,     UK000S,       0,  0.557268, 2459486.665067627560, 131.76076,  67.56377,               36.97838,  54.58181,        37.02732,       54.58257,    131.76076,     +67.56377,     131.75315,      +67.53563,  1626406.32,  3711207.41,  5026774.90,      51.313915,       -1.227296,   91327.98,  111639.08,   25151.88,            25075.14,    87.41,  47857.17,           44984.12,     47.06,    -29.02,         102.14,  +3.93,  +3.69
  0,     UK002W,       0,  0.068495, 2459486.665062410291, 123.05533,  38.24819,               84.83030,  48.10479,        84.83021,       48.10586,    123.05533,     +38.24819,     123.05430,      +38.24889,  1615088.81,  3712765.28,  5045342.50,      51.437965,       -1.069876,  103899.90,  138625.20,       0.00,             3274.49,   236.64,      0.00,           43254.43,     -2.22,      1.34,           3.86,  +3.49,  +2.78
  1,     UK002W,       0,  0.108503, 2459486.665062873159, 122.74849,  37.96354,               85.38881,  48.12129,        85.38818,       48.12967,    122.74849,     +37.96354,     122.74060,      +37.96901,  1615858.11,  3712659.38,  5044080.37,      51.429555,       -1.080623,  103043.84,  137439.76,    1481.90,             4756.39,   -78.15,  37040.06,           43254.43,    -17.21,     10.41,          30.19,  +2.75,  +2.06
  2,     UK002W,       0,  0.148471, 2459486.665063336026, 122.29186,  37.60285,               86.14792,  48.18338,        86.14958,       48.15650,    122.29186,     +37.60285,     122.31800,      +37.58537,  1616885.77,  3712517.92,  5042394.38,      51.418315,       -1.094921,  101900.64,  135868.10,    3461.46,             6735.94,   106.52,  49528.58,           43254.43,     54.62,    -32.97,          96.86,  +2.58,  +1.91
  3,     UK002W,       0,  0.188491, 2459486.665063799359, 121.95757,  37.26165,               86.79625,  48.18015,        86.79645,       48.17597,    121.95757,     +37.26165,     121.96208,      +37.25894,  1617739.94,  3712400.34,  5040993.02,      51.408968,       -1.106833,  100950.72,  134568.75,    5106.83,             8381.31,   -45.33,  41113.67,           43254.43,      8.41,     -5.08,          15.07,  +2.38,  +1.74
  4,     UK002W,       0,  0.228495, 2459486.665064262226, 121.56955,  36.89125,               87.52012,  48.19099,        87.52005,       48.19307,    121.56955,     +36.89125,     121.56822,      +36.89259,  1618675.64,  3712271.54,  5039457.91,      51.398725,       -1.119864,   99910.45,  133155.09,    6909.24,            10183.72,   -39.42,  45055.77,           43609.63,     -4.14,      2.50,           7.49,  +2.16,  +1.54
  5,     UK002W,       0,  0.268487, 2459486.665064725094, 121.15792,  36.51269,               88.27306,  48.21000,        88.27314,       48.20596,    121.15792,     +36.51269,     121.16261,      +36.51010,  1619628.36,  3712140.40,  5037894.88,      51.388291,       -1.133127,   98851.58,  131725.76,    8744.43,            12018.92,    -0.20,  45888.97,           44036.66,      7.95,     -4.80,          14.54,  +1.83,  +1.23
  6,     UK002W,       0,  0.308499, 2459486.665065187961, 120.73877,  36.09325,               89.08115,  48.20621,        89.08112,       48.21412,    120.73877,     +36.09325,     120.73223,      +36.09829,  1620627.69,  3712002.84,  5036255.37,      51.377341,       -1.147029,   97741.27,  130237.98,   10669.41,            13943.90,   127.92,  48110.18,           44625.77,    -15.39,      9.30,          28.48,  +1.86,  +1.29
  7,     UK002W,       0,  0.348507, 2459486.665065651294, 120.31842,  35.66922,               89.89708,  48.19829,        89.89731,       48.21667,    120.31842,     +35.66922,     120.30208,      +35.68086,  1621614.40,  3711867.02,  5034636.56,      51.366523,       -1.160756,   96645.33,  128780.41,   12570.10,            15844.58,   231.92,  47507.57,           45111.42,    -35.36,     21.37,          66.18,  +1.86,  +1.31
  8,     UK002W,       0,  0.388491, 2459486.665066114161, 119.88235,  35.27451,               90.69329,  48.21702,        90.69321,       48.21378,    119.88235,     +35.27451,     119.88678,      +35.27247,  1622555.62,  3711737.46,  5033092.38,      51.356200,       -1.173856,   95600.25,  127400.72,   14383.15,            17657.64,   249.37,  45344.59,           45353.56,      6.18,     -3.73,          11.69,  +2.17,  +1.64
  9,     UK002W,       0,  0.428523, 2459486.665066577494, 119.52067,  34.85768,               91.45743,  48.17312,        91.45885,       48.20604,    119.52067,     +34.85768,     119.49091,      +34.87834,  1623442.47,  3711615.38,  5031637.41,      51.346469,       -1.186208,   94615.82,  126110.45,   16091.47,            19365.96,   159.93,  42673.83,           45330.56,    -62.04,     37.52,         118.59,  +2.09,  +1.59
 10,     UK002W,       0,  0.468503, 2459486.665067039896, 119.07877,  34.44789,               92.27881,  48.18178,        92.27940,       48.19189,    119.07877,     +34.44789,     119.07085,      +34.45421,  1624373.70,  3711487.20,  5030109.63,      51.336246,       -1.199167,   93582.45,  124767.02,   17885.27,            21159.76,   158.30,  44867.39,           45296.97,    -18.87,     11.39,          36.44,  +2.55,  +2.07
 11,     UK002W,       0,  0.508519, 2459486.665067503229, 118.76193,  34.09398,               92.93681,  48.14715,        92.93895,       48.17716,    118.76193,     +34.09398,     118.73534,      +34.11265,  1625108.30,  3711386.08,  5028904.45,      51.328178,       -1.209424,   92767.46,  123713.74,   19300.31,            22574.80,  -223.71,  35361.81,           44895.33,    -55.51,     33.55,         108.14,  +3.12,  +2.66

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.