Orbital Analysis for matched events on 20211103_213834.524_UK

Back to daily index
Summary for Event
-----------------
shower ID 630 TAR
Lg 54.33° Bg 1.95° Vg 27.52km/s
mass 0.05427g, abs. mag 1.1
best visual mag 1.3
Path Details
------------
start -3.22° 49.95° 97.72km
end   -3.43° 50.00° 82.10km

Orbit Details
-------------
Semimajor axis 1.86A.U., eccentricity 0.81, inclination 2.25°, Period 2.55Y, LA Sun 221.39°, last Perihelion 2019-06-01

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: 2459522.401788477786
Time: 2021-11-03 21:38:34.524481 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK000H and UK0021
 Convergence angle = 13.18470 deg
 R.A. =  52.05321  Dec = +22.21472 deg

Best intersection: Stations UK000H and UK0021 with Qconv = 13.18 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   4160325.54 +/- 144.74 m
 Y =    348147.26 +/- 74.03 m
 Z =   4934172.37 +/- 21.32 m
 Vx =    17471.11 +/- 310.04 m/s
 Vy =    21205.15 +/- 242.22 m/s
 Vz =    11203.47 +/- 102.94 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+2.103864e+04, -8.622563e+03, -1.737946e+03, +2.941045e+04, -2.974298e+04, -1.030108e+04
-8.622563e+03, +5.304649e+03, +9.165802e+02, -1.135776e+04, +1.189694e+04, +3.060223e+03
-1.737946e+03, +9.165802e+02, +4.744260e+02, -2.703277e+03, +2.690254e+03, +1.453290e+03
+2.941045e+04, -1.135776e+04, -2.703277e+03, +5.037665e+04, -4.922323e+04, -1.863047e+04
-2.974298e+04, +1.189694e+04, +2.690254e+03, -4.922323e+04, +5.487469e+04, +2.077477e+04
-1.030108e+04, +3.060223e+03, +1.453290e+03, -1.863047e+04, +2.077477e+04, +9.962157e+03

Timing offsets (from input data):
    UK000H: 0.000000 s
    UK0021: 0.000213 s

Reference point on the trajectory:
  Time: 2021-11-03 21:38:34.524481 UTC
  Lon     = +-3.221795 +/- 0.0012 deg
  Lat     = +49.951804 +/- 0.0010 deg
  Lat geo = +49.765008 +/- 0.0010 deg
  Ht      =   97703.19 +/- 81.37 m

  JD dynamic   = 2459522.402589218691 
  LST apparent = 4.7835200407 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  50.51460 +/- 0.6556 deg
  Dec       = +22.18384 +/- 0.1464 deg
  Azimuth   = 110.79749 +/- 0.7625 deg
  Elevation = +44.82350 +/- 0.3074 deg
  Vavg      =  29.29372 +/- 0.1862 km/s
  Vinit     =  29.67180 +/- 0.0868 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  50.95425 +/- 0.6556 deg
  Dec       = +22.02538 +/- 0.1464 deg
  Azimuth   = 110.50714 +/- 0.7625 deg
  Elevation = +44.43836 +/- 0.3074 deg
  Vavg      =  29.49645 +/- 0.1862 km/s
  Vinit     =  29.87453 +/- 0.0868 km/s
Radiant (geocentric, J2000):
  R.A.   =  51.45210 +/- 0.7029 deg
  Dec    = +20.74402 +/- 0.1461 deg
  Vg     =  27.51506 +/- 0.0935 km/s
  Vinf   =  29.67180 +/- 0.0868 km/s
  Zc     =  45.11044 +/- 0.3433 deg
  Zg     =  46.90528 +/- 0.3508 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  54.33054 +/- 0.6644 deg
  Bg     =  +1.95187 +/- 0.1090 deg
  Vh     =  36.23363 +/- 0.2226 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =   0.14618 +/- 0.3936 deg
  Bh     =  +1.48204 +/- 0.0778 deg
  Vh_x   = -36.22139 +/- 0.2234 km/s
  Vh_y   =  -0.09241 +/- 0.2474 km/s
  Vh_z   =  -0.93713 +/- 0.0518 km/s
Orbit:
  La Sun = 221.389756 +/- -0.0000 deg
  a      =   1.864403 +/- 0.0621 AU
  e      =   0.812566 +/- 0.0017
  i      =   2.247823 +/- 0.1142 deg
  peri   = 296.420755 +/- 1.4177 deg
  node   = 221.379876 +/- 0.0005 deg
  Pi     = 157.800632 +/- 1.4177 deg
  q      =   0.349452 +/- 0.0093 AU
  f      = 243.588728 +/- 1.4177 deg
  M      = 343.224096 +/- 0.8573 deg
  Q      =   3.379354 +/- 0.1151 AU
  n      =   0.387164 +/- 0.0197 deg/day
  T      =   2.545718 +/- 0.1268 years
  Last perihelion JD = 2458635.893186 (2019-06-01 09:26:11.265869) +/- 46.3061 days
  Tj     =   3.488584 +/- 0.0851
Shower association:
  IAU No.  =  630
  IAU code =  TAR

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +3.229472e-06, +9.587873e-06, -6.229788e-02, +3.072581e-07, -1.595874e-03, +8.410225e-05
q   , +9.587873e-06, +9.061584e-05, -4.348124e-01, +5.670524e-07, -1.368139e-02, +1.992793e-04
Tp  , -6.229788e-02, -4.348124e-01, +2.207180e+03, -4.734102e-03, +6.672976e+01, -1.473157e+00
node, +3.072581e-07, +5.670524e-07, -4.734102e-03, +2.337352e-07, -1.000562e-04, +5.887008e-05
peri, -1.595874e-03, -1.368139e-02, +6.672976e+01, -1.000562e-04, +2.075689e+00, -3.373598e-02
i   , +8.410225e-05, +1.992793e-04, -1.473157e+00, +5.887008e-05, -3.373598e-02, +1.494671e-02

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.383682
 a2 = 8.844261

Mean time residuals from time vs. length:
  Station with reference time: UK000H
  Avg. res. = 1.326e-05 s
  Stddev    = 3.64e-03 s

Begin point on the trajectory:
  Lon =    -3.221538 +/- 0.0011 deg
  Lat =    49.951741 +/- 0.0010 deg
  Ht  = 97723.10 +/- 74.49 m
End point on the trajectory:
  Lon =    -3.427277 +/- 0.0010 deg
  Lat =    50.001150 +/- 0.0008 deg
  Ht  = 82102.22 +/- 44.73 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
    UK000H,   False,    -1.778230,    50.857470,   24.00,   0.139898,  10.218689,    97723.10,    82102.22,          0.015200,     45.90,      4.14,              81.61, 1.0000,    True,    True, {"ff_name": "FF_UK000H_20211103_213834_169_0399104.fits"}
    UK0021,   False,    -3.515726,    50.691998,   17.00,   0.751719,   7.913900,    90659.95,    82293.73,          0.009691,     19.84,      1.50,              37.78, 1.0000,   False,    True, {"ff_name": "FF_UK0021_20211103_213828_084_0386304.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,     UK000H,       0,  0.000000, 2459522.401788477786, 329.14499,   3.49113,              226.10081,  33.35938,       226.08010,       33.34436,    329.14499,      +3.49113,     329.15356,       +3.46988,  4160342.17,   348167.44,  4934183.03,      49.951741,       -3.221538,   97723.10,  174755.22,       0.00,               28.25,   193.50,      0.00,           29353.74,     -6.28,     69.59,          82.47,  +6.05,  +4.84
  1,     UK000H,       0,  0.040236, 2459522.401788943447, 328.71572,   3.32946,              226.46793,  33.01973,       226.43909,       32.99886,    328.71572,      +3.32946,     328.72785,       +3.29983,  4159515.53,   347164.13,  4933652.94,      49.954872,       -3.234484,   96733.49,  174540.92,    1403.91,             1375.66,   347.04,  34891.92,           29353.74,     -8.76,     96.92,         115.00,  +5.86,  +4.65
  2,     UK000H,       0,  0.080400, 2459522.401789408177, 328.47825,   3.19600,              226.64584,  32.79232,       226.64970,       32.79510,    328.47825,      +3.19600,     328.47698,       +3.19996,  4159031.66,   346576.84,  4933342.66,      49.956704,       -3.242134,   96154.27,  174423.63,    2225.69,             2197.44,   -22.92,  20460.58,           29353.74,      1.17,    -12.97,          15.40,  +4.74,  +3.53
  3,     UK000H,       0,  0.120644, 2459522.401789874304, 328.04270,   3.01891,              227.00708,  32.43466,       227.01325,       32.43911,    328.04270,      +3.01891,     328.04064,       +3.02526,  4158186.97,   345551.61,  4932800.99,      49.959902,       -3.255368,   95143.26,  174222.73,    3660.26,             3632.02,   217.55,  35646.90,           29353.74,      1.86,    -20.74,          24.65,  +3.98,  +2.77
  4,     UK000H,       0,  0.160796, 2459522.401790339034, 327.77400,   2.91101,              227.22937,  32.21474,       227.23612,       32.21959,    327.77400,      +2.91101,     327.77186,       +2.91795,  4157669.73,   344923.83,  4932469.31,      49.961860,       -3.263540,   94524.24,  174108.32,    4538.70,             4510.45,   -95.40,  21877.78,           28194.26,      2.04,    -22.67,          26.97,  +4.62,  +3.42
  5,     UK000H,       0,  0.201004, 2459522.401790804230, 327.36763,   2.76774,              227.57463,  31.89910,       227.56500,       31.89219,    327.36763,      +2.76774,     327.37249,       +2.75782,  4156899.38,   343988.82,  4931975.31,      49.964776,       -3.275633,   93602.39,  173942.53,    5847.03,             5818.78,    19.88,  32538.96,           28483.53,     -2.92,     32.38,          38.55,  +3.87,  +2.67
  6,     UK000H,       0,  0.241196, 2459522.401791269425, 327.00576,   2.63062,              227.87499,  31.60887,       227.85873,       31.59724,    327.00576,      +2.63062,     327.01356,       +2.61386,  4156208.67,   343150.50,  4931532.40,      49.967391,       -3.286496,   92775.96,  173802.98,    7020.07,             6991.83,     0.36,  29186.06,           28662.11,     -4.93,     54.65,          65.12,  +3.72,  +2.52
  7,     UK000H,       0,  0.281412, 2459522.401791735087, 326.61471,   2.47387,              228.19290,  31.28695,       228.17643,       31.27520,    326.61471,      +2.47387,     326.62278,       +2.45688,  4155457.21,   342238.43,  4931050.52,      49.970234,       -3.298305,   91876.94,  173659.50,    8296.30,             8268.06,    83.31,  31734.42,           28992.68,     -5.00,     55.34,          66.00,  +2.94,  +1.74
  8,     UK000H,       0,  0.321568, 2459522.401792199817, 326.38485,   2.34450,              228.35831,  31.06457,       228.37303,       31.07506,    326.38485,      +2.34450,     326.38002,       +2.35970,  4154993.12,   341675.15,  4930752.91,      49.971990,       -3.305665,   91321.72,  173578.42,    9084.50,             9056.25,  -320.00,  19628.23,           28523.33,      4.45,    -49.50,          59.06,  +3.93,  +2.73
  9,     UK000H,       0,  0.361816, 2459522.401792665478, 325.92492,   2.16865,              228.73294,  30.69209,       228.73989,       30.69703,    325.92492,      +2.16865,     325.92352,       +2.17584,  4154116.29,   340610.92,  4930190.64,      49.975308,       -3.319425,   90272.96,  173428.37,   10573.64,            10545.39,   -25.08,  36999.25,           28747.26,      2.10,    -23.38,          27.92,  +2.51,  +1.31
 10,     UK000H,       0,  0.402016, 2459522.401793130673, 325.52736,   2.02957,              229.06174,  30.38067,       229.05127,       30.37325,    325.52736,      +2.02957,     325.53344,       +2.01875,  4153368.87,   339703.76,  4929711.36,      49.978135,       -3.331184,   89379.09,  173311.69,   11843.00,            11814.75,    51.47,  31576.13,           28997.99,     -3.18,     35.20,          42.06,  +2.85,  +1.66
 11,     UK000H,       0,  0.442228, 2459522.401793596335, 325.16255,   1.86283,              229.34007,  30.05989,       229.34607,       30.06414,    325.16255,      +1.86283,     325.16187,       +1.86905,  4152657.95,   338840.89,  4929255.47,      49.980824,       -3.342382,   88528.95,  173209.74,   13050.39,            13022.14,    65.69,  30025.52,           29182.17,      1.82,    -20.20,          24.15,  +2.16,  +0.97
 12,     UK000H,       0,  0.482428, 2459522.401794061530, 324.77050,   1.72225,              229.65869,  29.74840,       229.65022,       29.74242,    324.77050,      +1.72225,     324.77608,       +1.71347,  4151920.35,   337945.64,  4928782.48,      49.983614,       -3.353997,   87647.02,  173112.62,   14303.09,            14274.84,   125.59,  31161.73,           29358.73,     -2.57,     28.53,          34.13,  +2.38,  +1.19
 13,     UK000H,       0,  0.522588, 2459522.401794526260, 324.49524,   1.59871,              229.86750,  29.50752,       229.86967,       29.50905,    324.49524,      +1.59871,     324.49650,       +1.60097,  4151387.76,   337299.23,  4928440.96,      49.985628,       -3.362434,   87010.24,  173050.31,   15207.59,            15179.34,  -161.53,  22522.47,           29274.59,      0.66,     -7.31,           8.75,  +2.74,  +1.55
 14,     UK000H,       0,  0.562756, 2459522.401794990990, 324.13186,   1.48546,              230.16939,  29.23264,       230.14403,       29.21481,    324.13186,      +1.48546,     324.14493,       +1.45913,  4150717.04,   336485.15,  4928010.85,      49.988164,       -3.373018,   86208.41,  172976.62,   16346.71,            16318.46,  -214.26,  28358.88,           29197.02,     -7.73,     85.48,         102.34,  +2.56,  +1.37
 15,     UK000H,       0,  0.603024, 2459522.401795457117, 323.69652,   1.26632,              230.48260,  28.82960,       230.49294,       28.83686,    323.69652,      +1.26632,     323.69466,       +1.27707,  4149857.16,   335441.50,  4927459.44,      49.991414,       -3.386546,   85180.64,  172891.03,   17807.08,            17778.83,    51.28,  36266.13,           29301.32,      3.14,    -34.88,          41.78,  +2.83,  +1.64
 16,     UK000H,       0,  0.643196, 2459522.401795922313, 323.36536,   1.14100,              230.74232,  28.55865,       230.74582,       28.56110,    323.36536,      +1.14100,     323.36657,       +1.14464,  4149232.52,   334683.35,  4927058.89,      49.993776,       -3.396422,   84434.07,  172838.79,   18867.93,            18839.68,   -79.85,  26407.74,           29316.19,      1.06,    -11.81,          14.15,  +2.67,  +1.48
 17,     UK000H,       0,  0.683388, 2459522.401796387509, 323.01794,   0.99115,              231.00319,  28.25788,       231.01456,       28.26584,    323.01794,      +0.99115,     323.01597,       +1.00300,  4148564.98,   333873.15,  4926630.83,      49.996299,       -3.406969,   83636.34,  172789.71,   20001.62,            19973.37,  -138.72,  28206.94,           29307.17,      3.46,    -38.41,          46.04,  +2.45,  +1.26
 18,     UK000H,       0,  0.723552, 2459522.401796852238, 322.67338,   0.87541,              231.27884,  27.98772,       231.27093,       27.98220,    322.67338,      +0.87541,     322.67977,       +0.86717,  4147925.34,   333096.79,  4926220.65,      49.998716,       -3.417085,   82872.00,  172750.05,   21087.96,            21059.71,  -244.13,  27047.50,           29265.07,     -2.41,     26.73,          32.05,  +3.50,  +2.31
 19,     UK000H,       0,  0.763752, 2459522.401797317434, 322.34509,   0.71249,              231.51084,  27.68406,       231.52788,       27.69594,    322.34509,      +0.71249,     322.34103,       +0.73027,  4147281.07,   332314.83,  4925807.51,      50.001150,       -3.427277,   82102.22,  172717.06,   22182.13,            22153.89,  -342.75,  27218.37,           29205.16,      5.18,    -57.65,          69.13,  +3.99,  +2.80
  0,     UK0021,       0,  0.346116, 2459522.401792495511,  11.46507,   8.68873,              169.74427,  47.60137,       169.74409,       47.60100,     11.46507,      +8.68873,      11.46669,       +8.68837,  4154439.85,   341003.63,  4930398.13,      49.974084,       -3.314347,   90659.95,  122034.50,       0.00,             9995.88,  -108.74,      0.00,           31180.43,      0.06,      0.84,           1.42,  +2.42,  +1.99
  1,     UK0021,       0,  0.386352, 2459522.401792961173,  11.09829,   8.52048,              170.30580,  47.47441,       170.30825,       47.47943,     11.09829,      +8.52048,      11.09769,       +8.52529,  4153673.63,   340073.65,  4929906.78,      49.976982,       -3.326396,   89743.55,  121036.62,    1301.29,            11297.18,    -1.32,  32341.55,           31180.43,     -0.84,    -11.14,          19.04,  +1.77,  +1.36
  2,     UK0021,       0,  0.426592, 2459522.401793426834,  10.73251,   8.34302,              170.86494,  47.33583,       170.87409,       47.35416,     10.73251,      +8.34302,      10.72617,       +8.36063,  4152914.14,   339151.84,  4929419.76,      49.979855,       -3.338346,   88835.30,  120053.40,    2591.16,            12587.04,    94.55,  32054.30,           31180.43,     -3.07,    -40.43,          69.67,  +1.60,  +1.20
  3,     UK0021,       0,  0.466800, 2459522.401793892030,  10.38515,   8.20866,              171.38876,  47.23606,       171.38943,       47.23738,     10.38515,      +8.20866,      10.38652,       +8.20993,  4152231.08,   338322.78,  4928981.74,      49.982439,       -3.349113,   88018.53,  119174.11,    3751.24,            13747.12,    61.58,  28851.92,           31180.43,     -0.22,     -2.89,           5.02,  +1.32,  +0.94
  4,     UK0021,       0,  0.507016, 2459522.401794357691,  10.06409,   8.04968,              171.87604,  47.10737,       171.88402,       47.12277,     10.06409,      +8.04968,      10.05935,       +8.06452,  4151582.59,   337535.70,  4928565.89,      49.984891,       -3.359348,   87243.18,  118343.89,    4852.58,            14848.46,   -30.36,  27385.66,           30218.11,     -2.55,    -33.63,          58.79,  +1.52,  +1.15
  5,     UK0021,       0,  0.547244, 2459522.401794823352,   9.69073,   7.89691,              172.43619,  46.98747,       172.43804,       46.99097,      9.69073,      +7.89691,       9.69145,       +7.90029,  4150862.27,   336661.43,  4928103.98,      49.987615,       -3.370702,   86382.06,  117427.22,    6075.93,            16071.81,    -0.64,  30410.38,           29970.54,     -0.57,     -7.60,          13.39,  +1.43,  +1.08
  6,     UK0021,       0,  0.587456, 2459522.401795288548,   9.36018,   7.74532,              172.93217,  46.86305,       172.93589,       46.86997,      9.36018,      +7.74532,       9.35953,       +7.75203,  4150222.62,   335885.07,  4927693.80,      49.990033,       -3.380806,   85617.43,  116617.94,    7162.26,            17158.15,  -107.47,  27015.23,           29565.58,     -1.13,    -14.97,          26.55,  +1.87,  +1.54
  7,     UK0021,       0,  0.627692, 2459522.401795754209,   8.99212,   7.58325,              173.48137,  46.72901,       173.48378,       46.73343,      8.99212,      +7.58325,       8.99276,       +7.58753,  4149524.44,   335037.67,  4927246.09,      49.992672,       -3.391824,   84782.95,  115740.05,    8348.01,            18343.89,  -115.60,  29469.75,           29388.83,     -0.72,     -9.50,          16.98,  +1.63,  +1.31
  8,     UK0021,       0,  0.667928, 2459522.401796219870,   8.62607,   7.41806,              174.02560,  46.58946,       174.02839,       46.59446,      8.62607,      +7.41806,       8.62660,       +7.42292,  4148837.46,   334203.86,  4926805.56,      49.995269,       -3.402671,   83961.94,  114881.77,    9514.74,            19510.62,  -142.75,  28997.11,           29280.23,     -0.81,    -10.70,          19.26,  +1.89,  +1.59
  9,     UK0021,       0,  0.708120, 2459522.401796685066,   8.32715,   7.28376,              174.46816,  46.47441,       174.47109,       46.47959,      8.32715,      +7.28376,       8.32776,       +7.28880,  4148286.04,   333534.59,  4926451.96,      49.997353,       -3.411414,   83302.96,  114196.73,   10451.23,            20447.11,  -398.83,  23300.38,           28899.05,     -0.83,    -11.04,          20.00,  +2.74,  +2.45
 10,     UK0021,       0,  0.748428, 2459522.401797151659,   7.86956,   7.06659,              175.14334,  46.28385,       175.15116,       46.29736,      7.86956,      +7.06659,       7.86652,       +7.07979,  4147441.33,   332509.35,  4925910.28,      50.000545,       -3.424723,   82293.73,  113155.04,   11885.82,            21881.71,  -160.24,  35590.92,           28995.94,     -2.17,    -28.66,          52.39,  +2.52,  +2.25

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.