Orbital Analysis for matched events on 20211103_030359.773_UK

Back to daily index
Summary for Event
-----------------
shower ID 8 ORI
Lg 105.89° Bg -8.70° Vg 66.57km/s
mass 0.44351g, abs. mag -3.8
best visual mag -0.6
Path Details
------------
start -4.06° 46.80° 112.71km
end   -4.17° 46.90° 94.22km

Orbit Details
-------------
Semimajor axis 41.86A.U., eccentricity 0.99, inclination 161.30°, Period 270.82Y, LA Sun 220.61°, last Perihelion 1751-02-12

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: 2459521.627775156405
Time: 2021-11-03 03:03:59.773513 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK0021 and UK002D
 Convergence angle = 10.66810 deg
 R.A. = 106.30910  Dec = +13.60874 deg
Intersection 2 - Stations: UK0021 and UK003E
 Convergence angle = 10.51107 deg
 R.A. = 107.14085  Dec = +14.83400 deg
Intersection 3 - Stations: UK002D and UK003E
 Convergence angle = 0.31194 deg
 R.A. = 243.63144  Dec = +28.65428 deg

Best intersection: Stations UK0021 and UK002D with Qconv = 10.67 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =    423311.37 +/- 607.54 m
 Y =   4430879.88 +/- 2467.20 m
 Z =   4709092.47 +/- 1087.39 m
 Vx =   -18465.19 +/- 3850.07 m/s
 Vy =    62805.16 +/- 11570.11 m/s
 Vz =    16391.44 +/- 9794.14 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.166056e+05, +4.059723e+05, -1.844507e+05, +5.335011e+05, +1.361666e+06, -8.191508e+05
+4.059723e+05, +2.176717e+06, -9.768716e+05, +2.375391e+06, +7.149343e+06, -4.654720e+06
-1.844507e+05, -9.768716e+05, +4.762990e+05, -8.358234e+05, -2.738255e+06, +1.885973e+06
+5.335011e+05, +2.375391e+06, -8.358234e+05, +5.751167e+06, +1.402410e+07, -7.873073e+06
+1.361666e+06, +7.149343e+06, -2.738255e+06, +1.402410e+07, +3.710014e+07, -2.158835e+07
-8.191508e+05, -4.654720e+06, +1.885973e+06, -7.873073e+06, -2.158835e+07, +1.313135e+07

Timing offsets (from input data):
    UK0021: 0.000000 s
    UK002D: 0.001419 s
    UK003E: 0.002138 s

Reference point on the trajectory:
  Time: 2021-11-03 03:03:59.773513 UTC
  Lon     = +-4.054910 +/- 0.0051 deg
  Lat     = +46.802307 +/- 0.0226 deg
  Lat geo = +46.613572 +/- 0.0226 deg
  Ht      =  112905.55 +/- 959.63 m

  JD dynamic   = 2459521.628575897310 
  LST apparent = 84.5427168934 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 106.38373 +/- 6.3354 deg
  Dec       = +14.05733 +/- 7.0580 deg
  Azimuth   = 143.63571 +/- 14.5138 deg
  Elevation = +52.50656 +/- 3.6051 deg
  Vavg      =  65.64686 +/- 7.1312 km/s
  Vinit     =  67.48430 +/- 7.6746 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 106.64694 +/- 6.3354 deg
  Dec       = +14.03233 +/- 7.0580 deg
  Azimuth   = 143.27284 +/- 14.5138 deg
  Elevation = +52.37659 +/- 3.6051 deg
  Vavg      =  65.76467 +/- 7.1312 km/s
  Vinit     =  67.60212 +/- 7.6746 km/s
Radiant (geocentric, J2000):
  R.A.   = 106.19020 +/- 6.3844 deg
  Dec    = +13.85109 +/- 7.0657 deg
  Vg     =  66.56655 +/- 7.7749 km/s
  Vinf   =  67.48430 +/- 7.6746 km/s
  Zc     =  37.34161 +/- 3.5784 deg
  Zg     =  37.60671 +/- 3.5493 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 105.89459 +/- 5.2563 deg
  Bg     =  -8.69778 +/- 7.7315 deg
  Vh     =  42.03761 +/- 9.7427 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  87.38915 +/- 5.4315 deg
  Bh     = -13.85455 +/- 11.7583 deg
  Vh_x   =  -1.85919 +/- 4.0562 km/s
  Vh_y   = -40.77223 +/- 7.8367 km/s
  Vh_z   =  10.06624 +/- 9.9638 km/s
Orbit:
  La Sun = 220.614277 +/- 0.0000 deg
  a      =  41.858516 +/- 7.9441 AU
  e      =   0.986849 +/- 0.5845
  i      = 161.300972 +/- 10.3382 deg
  peri   =  84.039551 +/- 50.9980 deg
  node   =  40.612703 +/- 52.6908 deg
  Pi     = 124.652254 +/- 20.0047 deg
  q      =   0.550484 +/- 0.0611 AU
  f      = 275.957071 +/- 20.0187 deg
  M      = 359.860207 +/- nan deg
  Q      =  83.166548 +/- 15.8948 AU
  n      =   0.003639 +/- 1.0051 deg/day
  T      = 270.817282 +/- nan years
  Last perihelion JD = 2360642.304382 (1751-02-12 19:18:18.636192) +/- 23619.4198 days
  Tj     =  -0.744138 +/- 5.3134
Shower association:
  IAU No.  =    8
  IAU code =  ORI

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +2.331855e-02, +3.385514e-03, -2.167542e+03, +1.013442e+01, +8.229098e+00, -2.432426e-01
q   , +3.385514e-03, +8.946063e-04, -5.717182e+02, +1.453895e+00, +1.148956e+00, -8.917153e-02
Tp  , -2.167542e+03, -5.717182e+02, +7.397660e+08, -4.922208e+05, -3.150787e+05, +6.494429e+04
node, +1.013442e+01, +1.453895e+00, -4.922208e+05, +6.906688e+03, +6.009465e+03, +1.918086e+01
peri, +8.229098e+00, +1.148956e+00, -3.150787e+05, +6.009465e+03, +5.273594e+03, +3.661542e+01
i   , -2.432426e-01, -8.917153e-02, +6.494429e+04, +1.918086e+01, +3.661542e+01, +2.873878e+01

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: UK0021
  Avg. res. = 4.245e-06 s
  Stddev    = 2.06e-03 s

Begin point on the trajectory:
  Lon =    -4.056059 +/- 0.0053 deg
  Lat =    46.803379 +/- 0.0222 deg
  Ht  = 112709.23 +/- 849.40 m
End point on the trajectory:
  Lon =    -4.166432 +/- 0.0088 deg
  Lat =    46.904631 +/- 0.0195 deg
  Ht  = 94224.78 +/- 474.87 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
    UK0021,   False,    -3.515726,    50.691998,   17.00,   0.000000,   0.000000,   112709.23,    98669.06,          0.030964,     78.37,    227.35,              48.78, 0.5657,    True,    True, {"ff_name": "FF_UK0021_20211103_030349_821_0871168.fits"}
    UK002D,   False,    -1.801980,    51.351940,  129.00,  21.595118,   0.000000,   107695.14,    94254.23,          0.030583,     42.09,    285.16,              57.06, 0.7043,    True,    True, {"ff_name": "FF_UK002D_20211103_030353_710_0876800.fits"}
    UK003E,   False,    -1.802002,    51.351948,  130.00,   0.000000,   0.000000,   108411.95,    94224.78,          0.024534,     33.64,    229.54,              57.06, 0.7043,    True,    True, {"ff_name": "FF_UK003E_20211103_030357_958_0885248.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,     UK0021,       0,  0.000000, 2459521.627775156405,  79.08933, -26.63976,              185.48456,  12.48660,       185.45417,       12.46769,     79.08933,     -26.63976,      79.12102,      -26.66063,   423379.08,  4430649.60,  4709032.37,      46.803379,       -4.056059,  112709.23,  452259.62,       0.00,              247.43,   754.52,      0.00,           60988.48,    262.63,    -90.30,         126.66,  +4.00,  +0.72
  1,     UK0021,       0,  0.040160, 2459521.627775621135,  78.99041, -26.80685,              185.56313,  12.31386,       185.55809,       12.31073,     78.99041,     -26.80685,      78.99585,      -26.81032,   423913.29,  4428832.61,  4708558.16,      46.811839,       -4.065301,  111160.30,  450971.37,    1952.37,             2199.80,    -3.29,  48614.75,           60988.48,     43.47,    -14.98,          21.03,  +2.70,  -0.57
  2,     UK0021,       0,  0.080376, 2459521.627776086796,  78.80641, -27.01297,              185.71587,  12.09679,       185.70377,       12.08927,     78.80641,     -27.01297,      78.81940,      -27.02131,   424661.67,  4426287.16,  4707893.83,      46.823697,       -4.078193,  108990.74,  449174.31,    4687.45,             4934.89,    17.85,  68009.84,           60988.48,    103.90,    -35.77,          50.46,  +1.46,  -1.80
  3,     UK0021,       0,  0.120584, 2459521.627776551992,  78.63293, -27.20921,              185.85893,  11.88998,       185.84174,       11.87929,     78.63293,     -27.20921,      78.65143,      -27.22109,   425365.56,  4423893.05,  4707268.99,      46.834855,       -4.090342,  106950.53,  447492.87,    7259.94,             7507.37,  -123.07,  63979.47,           60988.48,    147.17,    -50.65,          71.74,  +1.03,  -2.22
  4,     UK0021,       0,  0.160824, 2459521.627777017653,  78.49639, -27.46473,              185.96332,  11.62624,       185.99473,       11.64572,     78.49639,     -27.46473,      78.46412,      -27.44301,   426142.14,  4421251.68,  4706579.62,      46.847173,       -4.103743,  104700.05,  445647.58,   10098.09,            10345.53,    -0.49,  70530.71,           63432.10,   -267.69,     92.50,         131.09,  +0.50,  -2.74
  5,     UK0021,       0,  0.201060, 2459521.627777483314,  78.31142, -27.69414,              186.11256,  11.38515,       186.14991,       11.40830,     78.31142,     -27.69414,      78.27303,      -27.66826,   426924.72,  4418589.92,  4705884.93,      46.859592,       -4.117261,  102432.65,  443798.68,   12958.17,            13205.60,   144.29,  71082.38,           65223.52,   -317.16,    109.64,         155.97,  +0.29,  -2.95
  6,     UK0021,       0,  0.241264, 2459521.627777948976,  78.12495, -27.88936,              186.26490,  11.17778,       186.29023,       11.19348,     78.12495,     -27.88936,      78.09933,      -27.87176,   427627.01,  4416201.21,  4705261.50,      46.870744,       -4.129423,  100398.22,  442148.79,   15524.84,            15772.27,    -2.18,  63841.19,           65714.88,   -214.34,     74.01,         105.78,  +0.35,  -2.88
  7,     UK0021,       0,  0.281432, 2459521.627778413706,  77.91095, -28.02071,              186.44631,  11.03183,       186.41041,       11.00954,     77.91095,     -28.02071,      77.94988,      -28.04576,   428224.02,  4414170.62,  4704731.54,      46.880228,       -4.139796,   98669.06,  440753.37,   17706.71,            17954.14,  -531.02,  54318.73,           64971.10,    303.31,   -104.18,         150.08,  +1.68,  -1.54
  0,     UK002D,       1,  0.070666, 2459521.627775961533,  65.44528, -27.19956,              199.15089,   9.22813,       199.08806,        9.18345,     65.44528,     -27.19956,      65.50189,      -27.25730,   424405.79,  4427157.47,  4708120.97,      46.819642,       -4.073796,  109732.48,  546103.76,       0.00,             3999.74,  -262.05,      0.00,           69370.03,    720.91,   -104.89,         275.16,  +3.80,  +0.11
  1,     UK002D,       0,  0.110818, 2459521.627776426263,  65.28341, -27.38195,              199.24994,   9.01743,       199.22373,        8.99881,     65.28341,     -27.38195,      65.30737,      -27.40606,   425108.64,  4424766.88,  4707497.05,      46.830782,       -4.085922,  107695.14,  544722.85,    2568.70,             6568.43,  -402.98,  63974.33,           69370.03,    299.95,    -43.92,         114.79,  +1.47,  -2.21
  2,     UK002D,       0,  0.151014, 2459521.627776891459,  65.07005, -27.60994,              199.38249,   8.75163,       199.39713,        8.76202,     65.07005,     -27.60994,      65.05754,      -27.59646,   426004.70,  4421719.15,  4706701.63,      46.844992,       -4.101354,  105098.32,  542973.88,    5843.49,             9843.22,   159.21,  81470.55,           69370.03,   -166.99,     24.62,          64.12,  +0.74,  -2.93
  3,     UK002D,       0,  0.191142, 2459521.627777355723,  64.90076, -27.75961,              199.49436,   8.57095,       199.52257,        8.59096,     64.90076,     -27.75961,      64.87624,      -27.73360,   426648.15,  4419530.58,  4706130.43,      46.855202,       -4.112495,  103233.88,  541727.77,    8195.12,            12194.86,  -197.17,  58603.32,           69370.03,   -321.11,     47.45,         123.59,  +0.55,  -3.12
  4,     UK002D,       0,  0.231266, 2459521.627777819987,  64.65832, -27.90365,              199.67049,   8.38026,       199.67452,        8.38312,     64.65832,     -27.90365,      64.65567,      -27.89992,   427425.85,  4416885.42,  4705440.08,      46.867549,       -4.125939,  100980.91,  540230.76,   11037.34,            15037.08,   -62.68,  70835.98,           68990.67,    -45.81,      6.74,          17.68,  -0.12,  -3.78
  5,     UK002D,       0,  0.271446, 2459521.627778285183,  64.45921, -28.11167,              199.79278,   8.13628,       199.83359,        8.16518,     64.45921,     -28.11167,      64.42375,      -28.07392,   428236.57,  4414127.93,  4704720.40,      46.880428,       -4.139964,   98632.75,  538681.59,   14000.27,            18000.01,   188.73,  73741.41,           69561.34,   -461.95,     68.39,         178.81,  -0.09,  -3.75
  6,     UK002D,       0,  0.311570, 2459521.627778749447,  64.24196, -28.25605,              199.94537,   7.95003,       199.97517,        7.97114,     64.24196,     -28.25605,      64.21655,      -28.22843,   428954.27,  4411686.83,  4704083.30,      46.891835,       -4.152413,   96554.40,  537320.56,   16623.24,            20622.98,   103.95,  65371.56,           69316.57,   -336.64,     49.74,         130.63,  -0.12,  -3.77
  7,     UK002D,       0,  0.351686, 2459521.627779213712,  63.97287, -28.38854,              200.14479,   7.76392,       200.13243,        7.75515,     63.97287,     -28.38854,      63.98540,      -28.40003,   429748.73,  4408984.67,  4703378.07,      46.904469,       -4.166190,   94254.23,  535824.53,   19526.72,            23526.46,   300.23,  72377.11,           69469.37,    139.37,    -20.44,          54.23,  +1.20,  -2.45
  0,     UK003E,       1,  0.047544, 2459521.627775681671,  65.47832, -27.21752,              199.11771,   9.21741,       199.08119,        9.19146,     65.47832,     -27.21752,      65.51126,      -27.25106,   424375.02,  4427262.14,  4708148.28,      46.819154,       -4.073172,  109821.70,  546162.49,       0.00,             3887.27,  1185.88,      0.00,           57313.91,    418.93,    -61.24,         159.90,  +5.19,  +1.50
  1,     UK003E,       0,  0.087672, 2459521.627776145935,  65.33994, -27.31676,              199.21575,   9.09247,       199.17540,        9.06380,     65.33994,     -27.31676,      65.37648,      -27.35386,   424861.34,  4425608.01,  4707716.57,      46.826861,       -4.081612,  108411.95,  545206.96,    1777.37,             5664.64,   255.23,  44292.47,           57313.91,    462.22,    -67.52,         176.72,  +1.89,  -1.79
  2,     UK003E,       0,  0.127868, 2459521.627776611596,  65.16851, -27.48623,              199.32580,   8.89230,       199.30972,        8.88088,     65.16851,     -27.48623,      65.18346,      -27.50103,   425555.27,  4423247.76,  4707100.57,      46.837864,       -4.093595,  106400.70,  543849.11,    4313.46,             8200.74,    78.73,  63093.23,           57313.91,    183.77,    -26.95,          70.44,  +0.74,  -2.94
  3,     UK003E,       0,  0.168060, 2459521.627777076792,  64.98860, -27.64628,              199.44483,   8.69939,       199.44351,        8.69845,     64.98860,     -27.64628,      64.99048,      -27.64750,   426243.74,  4420906.11,  4706489.43,      46.848785,       -4.105496,  104405.66,  542510.38,    6829.57,            10716.84,  -117.50,  62602.08,           57313.91,     15.08,     -2.22,           5.79,  +0.07,  -3.60
  4,     UK003E,       0,  0.208280, 2459521.627777541988,  64.77724, -27.83298,              199.58418,   8.47386,       199.59973,        8.48488,     64.77724,     -27.83298,      64.76417,      -27.81863,   427045.27,  4418179.89,  4705777.92,      46.861506,       -4.119340,  102083.41,  540961.75,    9758.90,            13646.17,    97.62,  72832.82,           61142.71,   -176.67,     26.05,          68.09,  -0.47,  -4.14
  5,     UK003E,       0,  0.248480, 2459521.627778007183,  64.55538, -27.98245,              199.74075,   8.28205,       199.74551,        8.28543,     64.55538,     -27.98245,      64.55214,      -27.97805,   427789.47,  4415648.64,  4705117.29,      46.873325,       -4.132220,   99927.66,  539534.45,   12478.74,            16366.01,   104.59,  67657.57,           63166.81,    -54.02,      7.95,          20.87,  -0.29,  -3.95
  6,     UK003E,       0,  0.288660, 2459521.627778472379,  64.36154, -28.11948,              199.87534,   8.10800,       199.87523,        8.10792,     64.36154,     -28.11948,      64.36283,      -28.11958,   428448.30,  4413407.78,  4704532.45,      46.883792,       -4.143653,   98019.56,  538279.69,   14886.54,            18773.82,  -199.13,  59925.49,           63542.21,      1.18,     -0.17,           0.46,  -0.63,  -4.29
  7,     UK003E,       0,  0.328868, 2459521.627778937574,  64.17159, -28.29852,              199.99567,   7.89382,       200.01922,        7.91049,     64.17159,     -28.29852,      64.15186,      -28.27668,   429177.36,  4410928.07,  4703885.27,      46.895382,       -4.156300,   95908.45,  536899.97,   17551.00,            21438.27,  -248.08,  66266.81,           63925.77,   -265.77,     39.23,         103.21,  -0.16,  -3.81
  8,     UK003E,       0,  0.369012, 2459521.627779402304,  63.95970, -28.38061,              200.15807,   7.76876,       200.13476,        7.75223,     63.95970,     -28.38061,      63.98210,      -28.40229,   429758.88,  4408950.13,  4703369.06,      46.904631,       -4.166432,   94224.78,  535807.21,   19676.30,            23563.57,  -831.87,  52941.85,           63373.42,    262.83,    -38.48,         102.26,  +2.44,  -1.21

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.