Orbital Analysis for matched events on 20210810_013612.573_UK

Summary for Event
-----------------
shower ID -1 spo
Lg 3.93° Bg 51.59° Vg 42.42km/s
mass 0.03928g, abs. mag -0.4
Path Details
------------
start -1.23° 52.95° 101.41km
end   -1.22° 52.95° 91.14km

Orbit Details
-------------
Semimajor axis 4.40A.U., eccentricity 0.83, inclination 72.85°, Period 9.23Y, LA Sun 137.37°, last Perihelion 2012-06-25

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: 2459436.566812192556
Time: 2021-08-10 01:36:12.583213 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001L and UK0027
 Convergence angle = 20.59534 deg
 R.A. = 337.69022  Dec = +50.47953 deg
Intersection 2 - Stations: UK001L and UK002Z
 Convergence angle = 37.72420 deg
 R.A. = 337.58073  Dec = +47.56723 deg
Intersection 3 - Stations: UK0027 and UK002Z
 Convergence angle = 17.18289 deg
 R.A. = 334.49609  Dec = +44.83178 deg

Best intersection: Stations UK001L and UK002Z with Qconv = 37.72 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3712229.24 +/- 124.48 m
 Y =  -1236181.69 +/- 88.12 m
 Z =   5147972.05 +/- 118.35 m
 Vx =    27137.40 +/- 724.23 m/s
 Vy =   -11764.35 +/- 242.40 m/s
 Vz =    32365.58 +/- 915.49 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.748278e+04, -9.594302e+03, +1.446815e+04, +6.555024e+02, -1.881650e+04, -3.211401e+04
-9.594302e+03, +7.075835e+03, -5.621711e+03, -4.850713e+03, +2.317951e+04, +2.827782e+04
+1.446815e+04, -5.621711e+03, +1.829271e+04, -4.776765e+03, +2.461765e+03, +6.567883e+03
+6.555024e+02, -4.850713e+03, -4.776765e+03, +8.994892e+04, -7.785669e+04, +5.267910e+04
-1.881650e+04, +2.317951e+04, +2.461765e+03, -7.785669e+04, +1.454420e+05, +8.597796e+04
-3.211401e+04, +2.827782e+04, +6.567883e+03, +5.267910e+04, +8.597796e+04, +3.521718e+05

Timing offsets (from input data):
    UK001L: -0.000417 s
    UK0027: 0.000000 s
    UK002F: 0.000000 s
    UK002Z: 0.001562 s

Reference point on the trajectory:
  Time: 2021-08-10 01:36:12.583213 UTC
  Lon     = +-1.229368 +/- 0.0008 deg
  Lat     = +52.946182 +/- 0.0007 deg
  Lat geo = +52.763852 +/- 0.0007 deg
  Ht      =  101489.84 +/- 166.01 m

  JD dynamic   = 2459436.567613046616 
  LST apparent = 341.5821117323 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 336.56276 +/- 0.6243 deg
  Dec       = +47.57701 +/- 0.7111 deg
  Azimuth   = 212.82174 +/- 1.6093 deg
  Elevation = +83.74858 +/- 0.8080 deg
  Vavg      =  44.09853 +/- 0.0705 km/s
  Vinit     =  43.84483 +/- 0.7451 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 337.11378 +/- 0.6243 deg
  Dec       = +47.59978 +/- 0.7111 deg
  Azimuth   = 209.85068 +/- 1.6093 deg
  Elevation = +83.94147 +/- 0.8080 deg
  Vavg      =  44.08262 +/- 0.0705 km/s
  Vinit     =  43.82891 +/- 0.7451 km/s
Radiant (geocentric, J2000):
  R.A.   = 336.26381 +/- 0.6324 deg
  Dec    = +47.37908 +/- 0.7234 deg
  Vg     =  42.41560 +/- 0.7696 km/s
  Vinf   =  43.84483 +/- 0.7451 km/s
  Zc     =   6.09899 +/- 0.8079 deg
  Zg     =   6.20014 +/- 0.8218 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =   3.93199 +/- 1.2102 deg
  Bg     = +51.58693 +/- 0.3769 deg
  Vh     =  39.35218 +/- 0.6353 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 288.24841 +/- 1.1667 deg
  Bh     = +57.62659 +/- 0.9141 deg
  Vh_x   =  -6.59797 +/- 0.4856 km/s
  Vh_y   =  20.01085 +/- 0.5335 km/s
  Vh_z   = -33.23593 +/- 0.6752 km/s
Orbit:
  La Sun = 137.373237 +/- nan deg
  a      =   4.399960 +/- 1.6677 AU
  e      =   0.825533 +/- 0.0438
  i      =  72.850645 +/- 0.9028 deg
  peri   = 242.403111 +/- 2.0804 deg
  node   = 137.375522 +/- 0.0001 deg
  Pi     =  19.778632 +/- 2.0805 deg
  q      =   0.767648 +/- 0.0118 AU
  f      = 297.593204 +/- 2.0804 deg
  M      = 355.902006 +/- 1.5226 deg
  Q      =   8.032272 +/- 3.3298 AU
  n      =   0.106790 +/- 0.0377 deg/day
  T      =   9.229406 +/- 6.0653 years
  Last perihelion JD = 2456103.842744 (2012-06-25 08:13:33.039739) +/- 2216.6383 days
  Tj     =   1.488817 +/- 0.3021
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +8.145695e-04, +8.127935e-05, -4.040048e+01, -1.306265e-08, -5.040393e-04, +1.960427e-04
q   , +8.127935e-05, +1.148844e-04, -7.707982e+00, -8.955127e-09, -3.081755e-04, +1.328902e-04
Tp  , -4.040048e+01, -7.707982e+00, +2.286230e+06, +9.234659e-04, +3.376992e+01, -1.383689e+01
node, -1.306265e-08, -8.955127e-09, +9.234659e-04, +8.352675e-13, +2.652600e-08, -1.241526e-08
peri, -5.040393e-04, -3.081755e-04, +3.376992e+01, +2.652600e-08, +9.348203e-04, -3.944449e-04
i   , +1.960427e-04, +1.328902e-04, -1.383689e+01, -1.241526e-08, -3.944449e-04, +1.845513e-04

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.034117
 a2 = 36.012506

Mean time residuals from time vs. length:
  Station with reference time: UK0027
  Avg. res. = 2.582e-06 s
  Stddev    = 1.61e-03 s

Begin point on the trajectory:
  Lon =    -1.229294 +/- 0.0008 deg
  Lat =    52.946251 +/- 0.0007 deg
  Ht  = 101405.14 +/- 110.21 m
End point on the trajectory:
  Lon =    -1.221363 +/- 0.0007 deg
  Lat =    52.954623 +/- 0.0006 deg
  Ht  = 91139.01 +/- 84.02 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
    UK001L,   False,    -1.306160,    51.883100,   80.00,   0.000000,   0.000000,   100747.21,    92234.82,          0.011686,     31.41,      1.90,              54.02, 0.6548,    True,    True, {"ff_name": "FF_UK001L_20210810_013603_521_0458752.fits"}
    UK0027,   False,    -2.374601,    51.371449,   48.00,   0.000000,   0.000000,   100756.47,    93167.62,          0.034472,    119.51,     51.16,              66.90, 0.8460,    True,    True, {"ff_name": "FF_UK0027_20210810_013607_435_0470784.fits"}
    UK002F,    True,    -1.306160,    51.883100,   80.00,  46.875592,   0.000000,   100786.67,    93560.42,          0.226822,       nan,       nan,              54.02, 0.0000,    True,    True, {"ff_name": "FF_UK002F_20210810_013612_515_0450304.fits"}
    UK002Z,   False,    -0.382830,    53.537790,   34.00,   0.000000,   0.000000,   101405.14,    91139.01,          0.023359,     40.80,     33.54,              34.94, 0.3280,    True,    True, {"ff_name": "FF_UK002Z_20210810_013612_331_0469248.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,     UK001L,       0,  0.023843, 2459436.566812473349, 152.42867,  77.59153,                2.52144,  39.59802,         2.51617,       39.59775,    152.42867,     +77.59153,     152.44767,      +77.59178,  3711766.85, -1235981.23,  5147420.58,      52.946787,       -1.228783,  100747.21,  156183.23,       0.00,              747.07,    97.40,      0.00,           44325.35,     -0.67,     11.07,          14.65,  +1.96,  +0.99
  1,     UK001L,       0,  0.064247, 2459436.566812941339, 152.51902,  77.09294,                2.57683,  39.10088,         2.55388,       39.09969,    152.51902,     +77.09294,     152.59908,      +77.09396,  3710742.25, -1235537.06,  5146198.58,      52.948127,       -1.227520,   99101.65,  155234.60,    1655.40,             2402.47,   -18.70,  40971.20,           44325.35,     -2.93,     48.28,          64.26,  +0.93,  -0.02
  2,     UK001L,       0,  0.104691, 2459436.566813409328, 152.67894,  76.54988,                2.61591,  38.55745,         2.59484,       38.55635,    152.67894,     +76.54988,     152.75026,      +76.55078,  3709638.58, -1235058.61,  5144882.29,      52.949572,       -1.226146,   97329.07,  154226.12,    3438.56,             4185.63,    -8.81,  44089.50,           44325.35,     -2.69,     44.36,          59.44,  +0.42,  -0.52
  3,     UK001L,       0,  0.145183, 2459436.566813877784, 152.84823,  75.95001,                2.65630,  37.95707,         2.63985,       37.95621,    152.84823,     +75.95001,     152.90231,      +75.95068,  3708436.00, -1234537.28,  5143448.02,      52.951147,       -1.224633,   95397.64,  153143.36,    5381.51,             6128.59,   158.78,  47983.75,           44325.35,     -2.09,     34.68,          46.80,  +0.51,  -0.42
  4,     UK001L,       0,  0.185603, 2459436.566814345773, 153.03312,  75.44613,                2.67297,  37.45129,         2.67623,       37.45146,    153.03312,     +75.44613,     153.02358,      +75.44600,  3707437.45, -1234104.40,  5142257.10,      52.952455,       -1.223404,   93793.88,  152257.18,    6994.83,             7741.90,    -0.11,  39913.85,           43801.89,      0.41,     -6.88,           9.34,  +0.97,  +0.06
  5,     UK001L,       0,  0.226011, 2459436.566814813297, 153.15757,  74.95000,                2.70391,  36.95476,         2.71138,       36.95515,    153.15757,     +74.95000,     153.13552,      +74.94972,  3706466.75, -1233683.58,  5141099.38,      52.953728,       -1.222213,   92234.82,  151407.19,    8563.16,             9310.23,  -203.46,  38812.40,           42940.24,      0.94,    -15.77,          21.53,  +2.46,  +1.56
  0,     UK0027,       1,  0.000000, 2459436.566812192556, 115.37497,  59.68569,               23.60977,  26.86109,        23.64617,       26.86163,    115.37497,     +59.68569,     115.31856,      +59.67007,  3712374.34, -1236244.59,  5148145.10,      52.945992,       -1.229530,  101722.87,  218532.68,       0.00,              234.43,   630.16,      0.00,           44476.98,     48.80,   -113.86,         116.92,  +5.45,  +3.75
  1,     UK0027,       0,  0.040192, 2459436.566812657751, 115.56007,  59.46864,               23.63859,  26.62606,        23.64759,       26.62620,    115.56007,     +59.46864,     115.54633,      +59.46479,  3711772.61, -1235983.73,  5147427.45,      52.946779,       -1.228857,  100756.47,  218159.93,     972.18,              737.76,  -628.72,  24188.42,           44476.98,     12.08,    -28.16,          28.97,  +4.71,  +3.02
  2,     UK0027,       0,  0.080704, 2459436.566813126672, 116.18863,  58.94584,               23.61043,  26.01270,        23.65607,       26.01339,    116.18863,     +58.94584,     116.11880,      +58.92655,  3710218.21, -1235309.88,  5145573.59,      52.948813,       -1.226854,   98260.01,  217220.81,    3483.56,             3249.14,   106.42,  61991.09,           44476.98,     61.24,   -142.97,         147.69,  +1.93,  +0.25
  3,     UK0027,       0,  0.121036, 2459436.566813593265, 116.53013,  58.57770,               23.63537,  25.60479,        23.66065,       25.60517,    116.53013,     +58.57770,     116.49194,      +58.56709,  3709189.61, -1234863.98,  5144346.82,      52.950160,       -1.225584,   96608.00,  216611.70,    5145.43,             4911.01,    -0.06,  41204.72,           44476.98,     33.96,    -79.22,          82.07,  +1.41,  -0.27
  4,     UK0027,       0,  0.161412, 2459436.566814060789, 116.92637,  58.17515,               23.64604,  25.15189,        23.66600,       25.15220,    116.92637,     +58.17515,     116.89662,      +58.16683,  3708055.04, -1234372.12,  5142993.66,      52.951646,       -1.224166,   94785.77,  215953.09,    6978.52,             6744.10,    62.76,  45400.52,           44919.04,     26.84,    -62.61,          65.06,  +1.58,  -0.09
  5,     UK0027,       0,  0.201752, 2459436.566814527847, 117.34676,  57.83486,               23.60671,  24.74676,        23.67041,       24.74771,    117.34676,     +57.83486,     117.25088,      +57.80852,  3707047.53, -1233935.36,  5141792.05,      52.952967,       -1.222924,   93167.62,  215379.14,    8606.32,             8371.89,   -78.15,  40351.80,           44393.28,     85.54,   -199.96,         208.28,  +2.20,  +0.53
  0,     UK002F,       1,  0.030073, 2459436.566812540404, 151.74770,  77.59421,                2.70926,  39.61986,         2.51435,       39.60964,    151.74770,     +77.59421,     152.44720,      +77.60375,  3711791.41, -1235991.88,  5147449.88,      52.946755,       -1.228841,  100786.67,  156206.05,       0.00,              707.38,  -215.44,      0.00,           44758.23,    -26.03,    409.47,         541.78,  +1.86,  +0.89
  1,     UK002F,       1,  0.070601, 2459436.566813009791, 151.56237,  76.95799,                2.87373,  38.99516,         2.56347,       38.97879,    151.56237,     +76.95799,     152.63233,      +76.97306,  3710495.43, -1235430.06,  5145904.22,      52.948450,       -1.227200,   98705.24,  155007.89,    2093.86,             2801.24,   101.48,  51664.65,           44758.23,    -42.65,    652.55,         870.18,  +0.78,  -0.17
  2,     UK002F,       1,  0.110993, 2459436.566813477315, 151.81242,  76.45964,                2.88693,  38.49361,         2.60064,       38.47852,    151.81242,     +76.45964,     152.77099,      +76.47296,  3709481.64, -1234990.57,  5144695.11,      52.949777,       -1.225951,   97077.02,  154083.86,    3731.81,             4439.19,   -31.56,  40551.18,           44758.23,    -39.11,    602.76,         808.58,  +0.37,  -0.57
  3,     UK002F,       1,  0.151429, 2459436.566813945305, 151.95999,  75.91678,                2.93320,  37.95083,         2.64080,       37.93541,    151.95999,     +75.91678,     152.90930,      +75.92994,  3708394.59, -1234519.33,  5143398.64,      52.951201,       -1.224599,   95331.13,  153106.32,    5488.11,             6195.49,   -48.16,  43434.19,           44758.23,    -39.99,    616.27,         831.99,  +0.50,  -0.42
  4,     UK002F,       1,  0.191885, 2459436.566814413294, 151.97722,  75.35716,                3.01920,  37.39535,         2.68153,       37.37749,    151.97722,     +75.35716,     153.04065,      +75.37204,  3707292.10, -1234041.38,  5142083.74,      52.952646,       -1.223225,   93560.42,  152129.18,    7269.37,             7976.75,   -40.69,  44029.53,           44339.78,    -46.70,    712.44,         968.04,  +1.13,  +0.22
  0,     UK002Z,       0,  0.011437, 2459436.566812305711, 315.42923,  18.05701,              220.96751,  48.82735,       220.98146,       48.82758,    315.42923,     +18.05701,     315.42055,      +18.06098,  3712176.50, -1236158.82,  5147909.15,      52.946251,       -1.229294,  101405.14,  133878.61,       0.00,               85.21,   -20.52,      0.00,           44628.59,    -13.64,     16.58,          33.08,  +2.31,  +1.68
  1,     UK002Z,       0,  0.051745, 2459436.566812772304, 315.23467,  17.67002,              220.98339,  48.39846,       221.00339,       48.39879,    315.23467,     +17.67002,     315.22230,      +17.67575,  3711091.13, -1235688.30,  5146614.68,      52.947671,       -1.227946,   99661.97,  132436.83,    1753.60,             1838.80,   -34.22,  43504.93,           44628.59,    -19.51,     23.72,          47.83,  +1.42,  +0.81
  2,     UK002Z,       0,  0.092073, 2459436.566813238896, 315.04097,  17.24153,              220.97379,  47.93188,       221.02646,       47.93274,    315.04097,     +17.24153,     315.00798,      +17.25672,  3709937.17, -1235188.05,  5145238.41,      52.949181,       -1.226502,   97808.64,  130911.95,    3618.00,             3703.20,    62.00,  46230.87,           44628.59,    -51.21,     62.32,         127.09,  +0.70,  +0.12
  3,     UK002Z,       0,  0.132401, 2459436.566813705955, 314.83754,  16.83563,              220.99183,  47.48194,       221.04865,       47.48287,    314.83754,     +16.83563,     314.80184,      +16.85212,  3708848.51, -1234716.10,  5143940.00,      52.950607,       -1.225148,   96060.16,  129481.75,    5376.91,             5462.12,    52.74,  43615.23,           44628.59,    -55.12,     67.07,         138.30,  +0.56,  -0.00
  4,     UK002Z,       0,  0.172705, 2459436.566814172082, 314.62712,  16.48681,              221.05388,  47.08127,       221.06883,       47.08152,    314.62712,     +16.48681,     314.61824,      +16.49118,  3707897.82, -1234303.97,  5142806.15,      52.951852,       -1.223986,   94533.26,  128240.09,    6912.91,             6998.11,  -178.38,  38110.27,           43277.57,    -14.49,     17.60,          36.66,  +0.53,  -0.01
  5,     UK002Z,       0,  0.213085, 2459436.566814639606, 314.39910,  16.00617,              221.06058,  46.55314,       221.09331,       46.55368,    314.39910,     +16.00617,     314.37882,      +16.01580,  3706673.23, -1233773.10,  5141345.65,      52.953457,       -1.222440,   92566.47,  126648.76,    8891.42,             8976.62,    29.67,  48997.29,           43709.85,    -31.62,     38.42,          81.05,  +0.84,  +0.33
  6,     UK002Z,       0,  0.253373, 2459436.566815105733, 314.21379,  15.65649,              221.09102,  46.16120,       221.11271,       46.16156,    314.21379,     +15.65649,     314.20073,      +15.66292,  3705784.47, -1233387.81,  5140285.66,      52.954623,       -1.221363,   91139.01,  125502.06,   10327.35,            10412.56,  -300.81,  35641.72,           43000.54,    -20.93,     25.42,          54.12,  +2.03,  +1.54

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.