Orbital Analysis for matched events on 20210929_002421.812_UK

Summary for Event
-----------------
shower ID 210 BAU
Lg 96.21° Bg 18.89° Vg 64.91km/s
mass 0.00498g, abs. mag 0.5
Path Details
------------
start -0.68° 50.83° 113.35km
end   -0.84° 50.78° 104.51km

Orbit Details
-------------
Semimajor axis 2.73A.U., eccentricity 0.63, inclination 146.45°, Period 4.51Y, LA Sun 185.79°, last Perihelion 2017-03-27

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: 2459486.516919121612
Time: 2021-09-29 00:24:21.812107 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK0001 and UK002C
 Convergence angle = 17.52845 deg
 R.A. =  97.71504  Dec = +42.21825 deg

Best intersection: Stations UK0001 and UK002C with Qconv = 17.53 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3996079.37 +/- 111.67 m
 Y =    952295.01 +/- 184.60 m
 Z =   5009839.27 +/- 160.65 m
 Vx =    -6661.79 +/- 951.97 m/s
 Vy =    48157.45 +/- 1184.63 m/s
 Vz =    44421.17 +/- 1080.43 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.156546e+04, +1.874322e+04, +1.713246e+04, +7.467665e+04, +7.968510e+04, +7.325106e+04
+1.874322e+04, +3.124768e+04, +2.829711e+04, +1.127278e+05, +1.213293e+05, +1.100436e+05
+1.713246e+04, +2.829711e+04, +2.589848e+04, +1.045737e+05, +1.116122e+05, +1.025156e+05
+7.467665e+04, +1.127278e+05, +1.045737e+05, +7.927379e+05, +8.282950e+05, +7.735038e+05
+7.968510e+04, +1.213293e+05, +1.116122e+05, +8.282950e+05, +8.760528e+05, +8.114676e+05
+7.325106e+04, +1.100436e+05, +1.025156e+05, +7.735038e+05, +8.114676e+05, +7.596240e+05

Timing offsets (from input data):
    UK0001: 0.000000 s
    UK002C: -0.002011 s

Reference point on the trajectory:
  Time: 2021-09-29 00:24:21.812107 UTC
  Lon     = +-0.678769 +/- 0.0021 deg
  Lat     = +50.834111 +/- 0.0002 deg
  Lat geo = +50.648837 +/- 0.0002 deg
  Ht      =  113364.57 +/- 219.63 m

  JD dynamic   = 2459486.517719862517 
  LST apparent = 13.4039973504 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  97.87595 +/- 1.3050 deg
  Dec       = +42.41839 +/- 0.0810 deg
  Azimuth   =  63.21851 +/- 0.7119 deg
  Elevation = +34.60387 +/- 0.7756 deg
  Vavg      =  64.76733 +/- 1.4909 km/s
  Vinit     =  65.85407 +/- 1.5000 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  97.90975 +/- 1.3050 deg
  Dec       = +42.24398 +/- 0.0810 deg
  Azimuth   =  63.36048 +/- 0.7119 deg
  Elevation = +34.47210 +/- 0.7756 deg
  Vavg      =  64.98776 +/- 1.4909 km/s
  Vinit     =  66.07450 +/- 1.5000 km/s
Radiant (geocentric, J2000):
  R.A.   =  97.93684 +/- 1.3275 deg
  Dec    = +42.15588 +/- 0.0908 deg
  Vg     =  64.91312 +/- 1.5202 km/s
  Vinf   =  65.85407 +/- 1.5000 km/s
  Zc     =  55.47977 +/- 0.7776 deg
  Zg     =  55.91341 +/- 0.8016 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  96.21094 +/- 1.0403 deg
  Bg     = +18.88914 +/- 0.0675 deg
  Vh     =  38.02515 +/- 1.5139 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  95.73166 +/- 1.8695 deg
  Bh     = +33.55360 +/- 0.5226 deg
  Vh_x   =   3.16477 +/- 1.0411 km/s
  Vh_y   = -31.53056 +/- 1.5161 km/s
  Vh_z   = -21.01714 +/- 0.5188 km/s
Orbit:
  La Sun = 185.792757 +/- 0.0000 deg
  a      =   2.729133 +/- 41.9070 AU
  e      =   0.632904 +/- 0.1383
  i      = 146.446390 +/- 0.4768 deg
  peri   = 180.132959 +/- 3.0273 deg
  node   = 185.792120 +/- 0.0000 deg
  Pi     =   5.925079 +/- 3.0273 deg
  q      =   1.001854 +/- 0.0026 AU
  f      = 359.865161 +/- 3.0273 deg
  M      = 359.976530 +/- nan deg
  Q      =   4.456411 +/- 83.8129 AU
  n      =   0.218609 +/- 0.0709 deg/day
  T      =   4.508557 +/- 442216627.3440 years
  Last perihelion JD = 2457839.845833 (2017-03-27 08:17:59.986230) +/- 11175.0272 days
  Tj     =   0.972451 +/- 0.7605
Shower association:
  IAU No.  =  210
  IAU code =  BAU

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +1.195432e-02, -1.961643e-04, -9.150356e+02, -4.064346e-08, +5.438575e-03, +6.665046e-04
q   , -1.961643e-04, +3.292466e-06, +1.615022e+01, +6.652576e-10, -8.758843e-05, -1.089803e-05
Tp  , -9.150356e+02, +1.615022e+01, +1.103790e+08, +3.163982e-03, -3.710868e+02, -5.157898e+01
node, -4.064346e-08, +6.652576e-10, +3.163982e-03, +1.486083e-13, -1.841899e-08, -2.436285e-09
peri, +5.438575e-03, -8.758843e-05, -3.710868e+02, -1.841899e-08, +2.551904e-03, +3.024850e-04
i   , +6.665046e-04, -1.089803e-05, -5.157898e+01, -2.436285e-09, +3.024850e-04, +3.994396e-05

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: UK0001
  Avg. res. = 8.939e-06 s
  Stddev    = 2.99e-03 s

Begin point on the trajectory:
  Lon =    -0.678949 +/- 0.0023 deg
  Lat =    50.834053 +/- 0.0001 deg
  Ht  = 113354.57 +/- 227.62 m
End point on the trajectory:
  Lon =    -0.839792 +/- 0.0026 deg
  Lat =    50.782797 +/- 0.0002 deg
  Ht  = 104511.61 +/- 290.84 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
    UK0001,   False,    -1.778230,    50.857470,   24.00,   0.000000,   0.000000,   113354.57,   104511.61,          0.007164,     14.23,      8.45,              27.61, 1.0000,    True,    True, {"ff_name": "FF_UK0001_20210929_002411_903_0539648.fits"}
    UK002C,   False,    -1.801980,    51.351940,  130.00,   0.000000,   0.000000,   112205.67,   106409.60,          0.018494,     31.37,     34.80,              46.35, 1.0000,    True,    True, {"ff_name": "FF_UK002C_20210929_002417_217_0539648.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,     UK0001,       0,  0.000000, 2459486.516919121612,  59.56198,  38.77475,               91.50594,  55.05746,        91.50090,       55.06167,     59.56198,     +38.77475,      59.55978,      +38.77956,  3996081.15,   952282.14,  5009827.40,      50.834053,       -0.678949,  113354.57,  137661.94,       0.00,               17.60,   131.45,      0.00,           64250.96,     -6.26,    -10.55,          18.38,  +3.32,  +2.63
  1,     UK0001,       0,  0.039676, 2459486.516919580754,  58.93399,  38.59319,               92.26892,  55.34674,        92.25605,       55.35767,     58.93399,     +38.59319,      58.92840,      +38.60555,  3996337.19,   950431.27,  5008120.13,      50.825758,       -0.705055,  111917.52,  135448.73,    2531.02,             2548.62,    49.65,  63792.16,           64250.96,    -15.88,    -26.74,          47.35,  +1.87,  +1.21
  2,     UK0001,       0,  0.079324, 2459486.516920039896,  58.26981,  38.42298,               93.05456,  55.66476,        93.05769,       55.66207,     58.26981,     +38.42298,      58.27157,      +38.41996,  3996596.27,   948558.43,  5006392.59,      50.817354,       -0.731472,  110464.07,  133221.16,    5092.08,             5109.68,    -0.27,  64595.00,           64250.96,      3.82,      6.45,          11.60,  +1.48,  +0.86
  3,     UK0001,       0,  0.118968, 2459486.516920498572,  57.59536,  38.23339,               93.88668,  55.97678,        93.89494,       55.96953,     57.59536,     +38.23339,      57.59974,      +38.22535,  3996853.94,   946695.74,  5004674.41,      50.808987,       -0.757749,  109019.15,  131018.04,    7639.27,             7656.87,   -63.81,  64251.47,           64250.96,     10.02,     16.92,          30.96,  +1.16,  +0.57
  4,     UK0001,       0,  0.158556, 2459486.516920956783,  56.80584,  37.98779,               94.90871,  56.32630,        94.90788,       56.32704,     56.80584,     +37.98779,      56.80610,      +37.98860,  3997149.56,   944558.74,  5002703.21,      50.799375,       -0.787873,  107362.29,  128507.53,   10561.55,            10579.15,   251.45,  73817.53,           66172.55,     -0.99,     -1.68,           3.13,  +2.11,  +1.57
  5,     UK0001,       0,  0.198232, 2459486.516921415925,  56.19737,  37.80326,               95.70023,  56.59718,        95.69997,       56.59742,     56.19737,     +37.80326,      56.19807,      +37.80351,  3997369.32,   942970.14,  5001237.86,      50.792222,       -0.810311,  106131.15,  126651.29,   12733.93,            12751.53,  -189.00,  54752.80,           65089.33,     -0.30,     -0.51,           0.97,  +3.24,  +2.73
  6,     UK0001,       0,  0.237792, 2459486.516921873670,  55.37987,  37.53778,               96.80412,  56.94833,        96.79616,       56.95583,     55.37987,     +37.53778,      55.37675,      +37.54580,  3997658.54,   940879.38,  4999309.31,      50.782797,       -0.839792,  104511.61,  124226.40,   15592.99,            15610.59,    64.87,  72271.55,           65470.38,     -9.58,    -16.15,          31.18,  +3.32,  +2.85
  0,     UK002C,       0,  0.028124, 2459486.516919470392,  46.66706,  19.75721,              126.64981,  48.50914,       126.64852,       48.50269,     46.66706,     +19.75721,      46.67161,      +19.75220,  3996285.84,   950802.47,  5008462.52,      50.827422,       -0.699813,  112205.67,  148636.77,       0.00,             2041.02,   302.80,      0.00,           62452.49,     12.54,     11.30,          23.42,  +5.20,  +4.34
  1,     UK002C,       0,  0.068052, 2459486.516919932328,  46.11919,  19.35514,              127.63143,  48.44053,       127.62590,       48.41537,     46.11919,     +19.35514,      46.13677,      +19.33564,  3996512.05,   949167.26,  5006954.19,      50.820087,       -0.722899,  110936.49,  147156.99,    2236.10,             4277.12,   -90.52,  56003.29,           62452.49,     48.48,     43.73,          91.51,  +1.79,  +0.95
  2,     UK002C,       0,  0.107984, 2459486.516920394730,  45.44664,  18.82066,              128.86696,  48.31352,       128.86168,       48.29186,     45.44664,     +18.82066,      45.46204,      +18.80388,  3996793.12,   947135.43,  5005079.99,      50.810963,       -0.751547,  109360.17,  145347.02,    5014.58,             7055.60,    58.28,  69580.39,           62452.49,     41.33,     37.27,          78.97,  +1.10,  +0.29
  3,     UK002C,       0,  0.147940, 2459486.516920857131,  44.86976,  18.34272,              129.93911,  48.18055,       129.93725,       48.17353,     44.86976,     +18.34272,      44.87524,      +18.33728,  3997033.20,   945399.86,  5003479.07,      50.803160,       -0.776045,  108014.31,  143824.83,    7387.93,             9428.95,  -199.64,  59399.00,           62452.49,     13.29,     11.98,          25.66,  +1.52,  +0.73
  4,     UK002C,       0,  0.187896, 2459486.516921319533,  44.17835,  17.74834,              131.23592,  47.99331,       131.24224,       48.01503,     44.17835,     +17.74834,      44.16403,      +17.76515,  3997319.61,   943329.48,  5001569.33,      50.793840,       -0.805238,  106409.60,  142041.03,   10219.11,            12260.13,     0.27,  70857.50,           64066.32,    -40.76,    -36.70,          79.65,  +3.65,  +2.89

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.