Orbital Analysis for matched events on 20211111_182159.632_UK

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Summary for Event
-----------------
shower ID -1 spo (Sporadic)
Lg 207.75° Bg 72.29° Vg 25.09km/s
mass 0.06069g, abs. mag 0.8
best visual mag 0.9
Path Details
------------
start -0.22° 50.87° 86.73km
end   -0.14° 50.83° 79.36km

Orbit Details
-------------
Semimajor axis 2.05A.U., eccentricity 0.54, inclination 41.22°, Period 2.95Y, LA Sun 229.28°, last Perihelion 2021-10-19

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

Uncertainties type:
 Purely geometric uncertainties

Reference JD: 2459530.265273528639
Time: 2021-11-11 18:21:59.673228 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK002B and UK002N
 Convergence angle = 34.70584 deg
 R.A. = 246.08754  Dec = +56.47409 deg

Best intersection: Stations UK002B and UK002N with Qconv = 34.71 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3404529.57 +/- 22.72 m
 Y =  -2263543.32 +/- 13.67 m
 Z =   4992511.40 +/- 18.43 m
 Vx =    -6372.81 +/- 112.78 m/s
 Vy =   -14004.09 +/- 19.46 m/s
 Vz =    22725.66 +/- 41.18 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+5.511839e+02, +1.310963e+01, +2.857460e+02, +2.157130e+03, -1.264354e+02, +9.252505e+02
+1.310963e+01, +2.020950e+02, -1.403305e+02, -5.422941e+02, +2.887174e+02, -1.343891e+01
+2.857460e+02, -1.403305e+02, +3.651733e+02, +1.210932e+03, -7.781133e+01, +5.230819e+02
+2.157130e+03, -5.422941e+02, +1.210932e+03, +1.366210e+04, -2.335939e+03, +4.347942e+03
-1.264354e+02, +2.887174e+02, -7.781133e+01, -2.335939e+03, +9.262684e+02, -2.956569e+02
+9.252505e+02, -1.343891e+01, +5.230819e+02, +4.347942e+03, -2.956569e+02, +1.776438e+03

Timing offsets (from input data):
    UK002B: 0.000000 s
    UK002N: -0.000013 s

Reference point on the trajectory:
  Time: 2021-11-11 18:21:59.673228 UTC
  Lon     = +-0.229293 +/- 0.0002 deg
  Lat     = +50.872171 +/- 0.0001 deg
  Lat geo = +50.686205 +/- 0.0001 deg
  Ht      =   87520.74 +/- 25.57 m

  JD dynamic   = 2459530.266074736603 
  LST apparent = 326.3815650719 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 245.53124 +/- 0.4168 deg
  Dec       = +55.90084 +/- 0.1068 deg
  Azimuth   = 309.32294 +/- 0.0956 deg
  Elevation = +44.31661 +/- 0.2472 deg
  Vavg      =  26.17603 +/- 0.0140 km/s
  Vinit     =  27.44417 +/- 0.0152 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 245.71122 +/- 0.4168 deg
  Dec       = +56.41260 +/- 0.1068 deg
  Azimuth   = 309.88072 +/- 0.0956 deg
  Elevation = +44.65365 +/- 0.2472 deg
  Vavg      =  26.01214 +/- 0.0140 km/s
  Vinit     =  27.28029 +/- 0.0152 km/s
Radiant (geocentric, J2000):
  R.A.   = 242.12408 +/- 0.4233 deg
  Dec    = +54.85442 +/- 0.1224 deg
  Vg     =  25.09271 +/- 0.0166 km/s
  Vinf   =  27.44417 +/- 0.0152 km/s
  Zc     =  45.80142 +/- 0.2473 deg
  Zg     =  47.96777 +/- 0.2627 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 207.75457 +/- 0.4600 deg
  Bg     = +72.29330 +/- 0.2348 deg
  Vh     =  36.88425 +/- 0.0808 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 305.51212 +/- 0.1753 deg
  Bh     = +40.39827 +/- 0.0348 deg
  Vh_x   = -16.31649 +/- 0.1079 km/s
  Vh_y   =  22.86464 +/- 0.0267 km/s
  Vh_z   = -23.90457 +/- 0.0463 km/s
Orbit:
  La Sun = 229.284185 +/- 0.0000 deg
  a      =   2.054584 +/- 0.0300 AU
  e      =   0.540864 +/- 0.0057
  i      =  41.224889 +/- 0.0444 deg
  peri   = 149.972417 +/- 0.5717 deg
  node   = 229.283228 +/- 0.0000 deg
  Pi     =  19.255645 +/- 0.5717 deg
  q      =   0.943333 +/- 0.0014 AU
  f      =  30.027502 +/- 0.5717 deg
  M      =   7.774923 +/- 0.2997 deg
  Q      =   3.165834 +/- 0.0585 AU
  n      =   0.334671 +/- 0.0069 deg/day
  T      =   2.945007 +/- 0.0652 years
  Last perihelion JD = 2459507.034549 (2021-10-19 12:49:45.046291) +/- 0.4546 days
  Tj     =   3.327985 +/- 0.0326
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +3.504581e-05, +8.301999e-06, +2.712174e-03, +4.977906e-10, +3.390280e-03, -2.320207e-04
q   , +8.301999e-06, +2.152259e-06, +6.868615e-04, +9.650125e-11, +8.652605e-04, -4.499479e-05
Tp  , +2.712174e-03, +6.868615e-04, +2.205041e-01, +3.340235e-08, +2.772291e-01, -1.557064e-02
node, +4.977906e-10, +9.650125e-11, +3.340235e-08, +9.711059e-15, +4.098362e-08, -4.508787e-09
peri, +3.390280e-03, +8.652605e-04, +2.772291e-01, +4.098362e-08, +3.487752e-01, -1.910568e-02
i   , -2.320207e-04, -4.499479e-05, -1.557064e-02, -4.508787e-09, -1.910568e-02, +2.103767e-03

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 1.283054
 a2 = 14.037940

Mean time residuals from time vs. length:
  Station with reference time: UK002B
  Avg. res. = 4.522e-06 s
  Stddev    = 2.13e-03 s

Begin point on the trajectory:
  Lon =    -0.220503 +/- 0.0002 deg
  Lat =    50.867614 +/- 0.0001 deg
  Ht  = 86729.11 +/- 17.60 m
End point on the trajectory:
  Lon =    -0.140352 +/- 0.0002 deg
  Lat =    50.825106 +/- 0.0002 deg
  Ht  = 79363.38 +/- 26.68 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
    UK002B,   False,    -1.367130,    50.815550,   22.00,   2.829342,  11.929776,    86729.11,    80043.19,          0.012889,     25.84,      6.14,              79.64, 1.0000,    True,    True, {"ff_name": "FF_UK002B_20211111_182157_931_0124160.fits"}
    UK002N,   False,    -0.727590,    51.263100,   57.00,   0.977966,  14.580709,    86698.86,    79363.38,          0.004992,      8.91,      0.78,              76.86, 1.0000,    True,    True, {"ff_name": "FF_UK002N_20211111_182200_463_0129536.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,     UK002B,       1,  0.000000, 2459530.265273528639,  23.84961,  37.08106,               85.06270,  46.87999,        85.05525,       46.87706,     23.84961,     +37.08106,      23.85643,      +37.08328,  3404522.71, -2263558.39,  4992535.85,      50.872289,       -0.229354,   87541.37,  119204.01,       0.00,               29.53,   -27.52,      0.00,           28309.93,      2.82,    -11.89,          21.15,  +5.53,  +5.15
  1,     UK002B,       0,  0.040352, 2459530.265273995697,  24.11923,  36.57703,               85.44614,  46.39904,        85.45362,       46.40197,     24.11923,     +36.57703,      24.11256,      +36.57480,  3404792.71, -2262965.08,  4991573.02,      50.867614,       -0.220503,   86729.11,  119009.22,    1162.74,             1133.20,   -31.28,  28814.82,           28309.93,     -2.85,     11.99,          21.35,  +2.21,  +1.83
  2,     UK002B,       0,  0.080700, 2459530.265274462756,  24.36768,  36.04671,               85.86451,  45.91187,        85.85813,       45.90938,     24.36768,     +36.04671,      24.37386,      +36.04861,  3405070.86, -2262353.83,  4990581.11,      50.862795,       -0.211379,   85892.40,  118820.23,    2360.60,             2331.07,    59.27,  29688.32,           28309.93,      2.44,    -10.27,          18.33,  +1.62,  +1.25
  3,     UK002B,       0,  0.121012, 2459530.265274929348,  24.59108,  35.58481,               86.21537,  45.48047,        86.20669,       45.47709,     24.59108,     +35.58481,      24.59954,      +35.58740,  3405313.91, -2261819.74,  4989714.39,      50.858583,       -0.203428,   85161.37,  118663.57,    3407.28,             3377.75,    -0.38,  25964.43,           28309.93,      3.33,    -14.04,          25.07,  +1.42,  +1.05
  4,     UK002B,       0,  0.161348, 2459530.265275395941,  24.82924,  35.08270,               86.59154,  45.01173,        86.57873,       45.00675,     24.82924,     +35.08270,      24.84165,      +35.08651,  3405576.80, -2261242.06,  4988776.94,      50.854025,       -0.194813,   84370.77,  118504.86,    4539.38,             4509.84,    24.73,  28066.68,           28072.81,      4.94,    -20.80,          37.20,  +1.07,  +0.70
  5,     UK002B,       0,  0.201684, 2459530.265275862999,  25.07403,  34.59909,               86.93414,  44.54792,        86.93483,       44.54819,     25.07403,     +34.59909,      25.07424,      +34.59888,  3405831.88, -2260681.52,  4987867.30,      50.849601,       -0.186459,   83603.71,  118360.61,    5637.88,             5608.35,    16.24,  27233.80,           27885.19,     -0.27,      1.13,           2.02,  +1.10,  +0.73
  6,     UK002B,       0,  0.242012, 2459530.265276329592,  25.30059,  34.11668,               87.28099,  44.09392,        87.28125,       44.09402,     25.30059,     +34.11668,      25.30136,      +34.11661,  3406083.37, -2260128.88,  4986970.49,      50.845237,       -0.178224,   82847.54,  118227.98,    6720.90,             6691.36,    -7.51,  26855.20,           27707.85,     -0.10,      0.42,           0.76,  +1.23,  +0.87
  7,     UK002B,       0,  0.282352, 2459530.265276796650,  25.54818,  33.63576,               87.60288,  43.62522,        87.62587,       43.63410,     25.54818,     +33.63576,      25.52824,      +33.62893,  3406336.89, -2259571.77,  4986066.41,      50.840837,       -0.169921,   82085.32,  118104.10,    7812.69,             7783.16,   -22.81,  27064.86,           27580.36,     -8.99,     37.83,          67.91,  +1.65,  +1.29
  8,     UK002B,       0,  0.322652, 2459530.265277263243,  25.74644,  33.18538,               87.92277,  43.20542,        87.93772,       43.21118,     25.74644,     +33.18538,      25.73405,      +33.18094,  3406569.27, -2259061.13,  4985237.76,      50.836802,       -0.162324,   81386.75,  117998.48,    8813.39,             8783.86,  -128.11,  24831.28,           27337.76,     -5.87,     24.69,          44.35,  +2.16,  +1.80
  9,     UK002B,       0,  0.362952, 2459530.265277729370,  25.95925,  32.76268,               88.19710,  42.79275,        88.23191,       42.80614,     25.95925,     +32.76268,      25.92876,      +32.75234,  3406791.11, -2258573.65,  4984446.67,      50.832949,       -0.155079,   80719.91,  117904.99,    9768.73,             9739.20,  -278.77,  23705.68,           27016.31,    -13.72,     57.72,         103.80,  +2.78,  +2.42
 10,     UK002B,       0,  0.403236, 2459530.265278195497,  26.13449,  32.32002,               88.51466,  42.38888,        88.52701,       42.39362,     26.13449,     +32.32002,      26.12481,      +32.31635,  3407016.25, -2258078.90,  4983643.80,      50.829037,       -0.147723,   80043.19,  117817.97,   10738.31,            10708.77,  -414.76,  24068.45,           26707.12,     -4.88,     20.56,          37.00,  +3.42,  +3.06
 11,     UK002B,       1,  0.443580, 2459530.265278662555,  26.41116,  31.89016,               88.73641,  41.92770,        88.82990,       41.96355,     26.41116,     +31.89016,      26.32688,      +31.86239,  3407250.12, -2257564.97,  4982809.81,      50.824972,       -0.140075,   79340.31,  117736.16,   11745.46,            11715.93,  -514.82,  24964.10,           26461.62,    -37.25,    156.40,         281.65,  +5.33,  +4.98
  0,     UK002N,       0,  0.043571, 2459530.265274032950, 348.07107,  22.41573,              140.86729,  56.41568,       140.86268,       56.41607,    348.07107,     +22.41573,     348.07356,      +22.41717,  3404802.76, -2262942.98,  4991537.18,      50.867440,       -0.220181,   86698.86,  103696.00,       0.00,             1176.50,   -76.33,      0.00,           28331.63,     -0.41,     -4.65,           9.29,  +1.54,  +1.46
  1,     UK002N,       1,  0.084063, 2459530.265274501871, 348.42123,  21.89038,              140.74361,  55.80216,       140.70501,       55.80543,    348.42123,     +21.89038,     348.44122,      +21.90260,  3405068.78, -2262358.41,  4990588.53,      50.862831,       -0.211463,   85898.65,  103465.02,    1145.62,             2322.11,   -41.98,  28292.40,           28331.63,     -3.45,    -39.47,          78.99,  +1.38,  +1.31
  2,     UK002N,       0,  0.124555, 2459530.265274970327, 348.81040,  21.38794,              140.54476,  55.19338,       140.55177,       55.19279,    348.81040,     +21.38794,     348.80730,      +21.38570,  3405334.43, -2261774.65,  4989641.21,      50.858227,       -0.202757,   85099.65,  103246.38,    2289.62,             3466.12,    -9.24,  28252.67,           28331.63,      0.63,      7.26,          14.56,  +1.04,  +0.97
  3,     UK002N,       0,  0.165059, 2459530.265275439247, 349.16513,  20.85569,              140.41952,  54.57081,       140.40131,       54.57235,    349.16513,     +20.85569,     349.17533,      +20.86159,  3405602.26, -2261186.10,  4988686.12,      50.853583,       -0.193978,   84294.19,  103038.21,    3443.02,             4619.51,    32.55,  28476.10,           28331.63,     -1.67,    -19.12,          38.41,  +1.09,  +1.03
  4,     UK002N,       0,  0.205527, 2459530.265275907703, 349.51352,  20.37403,              140.26637,  53.99606,       140.26623,       53.99607,    349.51352,     +20.37403,     349.51446,      +20.37408,  3405850.13, -2260641.41,  4987802.22,      50.849284,       -0.185865,   83548.83,  102856.24,    4510.45,             5686.94,   -10.63,  26377.07,           27952.80,     -0.01,     -0.15,           0.31,  +0.88,  +0.82
  5,     UK002N,       0,  0.246023, 2459530.265276376158, 349.87002,  19.85937,              140.12586,  53.38778,       140.12724,       53.38766,    349.87002,     +19.85937,     349.87031,      +19.85891,  3406110.76, -2260068.70,  4986872.82,      50.844762,       -0.177325,   82765.19,  102676.59,    5632.82,             6809.31,     0.36,  27715.64,           27810.65,      0.13,      1.49,           3.00,  +1.02,  +0.96
  6,     UK002N,       0,  0.286487, 2459530.265276844613, 350.19386,  19.37679,              140.00902,  52.82119,       140.00210,       52.82178,    350.19386,     +19.37679,     350.19880,      +19.37910,  3406352.42, -2259537.65,  4986011.04,      50.840567,       -0.169419,   82038.64,  102520.24,    6673.52,             7850.02,   -69.44,  25719.18,           27535.94,     -0.66,     -7.53,          15.21,  +1.56,  +1.51
  7,     UK002N,       0,  0.326935, 2459530.265277312603, 350.51348,  18.91600,              139.88285,  52.27566,       139.88466,       52.27551,    350.51348,     +18.91600,     350.51386,      +18.91539,  3406585.03, -2259026.49,  4985181.54,      50.836528,       -0.161815,   81339.36,  102379.21,    7675.26,             8851.75,  -177.76,  24766.10,           27190.90,      0.17,      1.98,           4.01,  +1.92,  +1.87
  8,     UK002N,       0,  0.367439, 2459530.265277781524, 350.86223,  18.39202,              139.76004,  51.66084,       139.75513,       51.66126,    350.86223,     +18.39202,     350.86648,      +18.39370,  3406845.63, -2258453.83,  4984252.23,      50.832002,       -0.153276,   80556.03,  102233.04,    8797.52,             9974.02,  -167.10,  27707.44,           27064.26,     -0.48,     -5.47,          11.07,  +2.44,  +2.39
  9,     UK002N,       0,  0.407843, 2459530.265278249048, 351.14568,  17.97572,              139.65370,  51.16948,       139.65543,       51.16934,    351.14568,     +17.97572,     351.14642,      +17.97512,  3407054.06, -2257995.82,  4983508.98,      50.828380,       -0.146479,   79929.57,  102123.78,    9695.09,            10871.58,  -378.39,  22214.74,           26735.84,      0.17,      1.94,           3.94,  +2.56,  +2.51
 10,     UK002N,       0,  0.448211, 2459530.265278716572, 351.40429,  17.60070,              139.55358,  50.72531,       139.56774,       50.72410,    351.40429,     +17.60070,     351.39818,      +17.59580,  3407242.43, -2257581.86,  4982837.21,      50.825106,       -0.140352,   79363.38,  102031.14,   10506.33,            11682.83,  -675.01,  20096.29,           26255.80,      1.40,     16.05,          32.57,  +3.81,  +3.77

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.