Orbital Analysis for matched events on 20211103_021036.631_UK

Back to daily index
Summary for Event
-----------------
shower ID 388 CTA
Lg 63.53° Bg 5.93° Vg 45.45km/s
mass 0.03929g, abs. mag -0.4
best visual mag 0.6
Path Details
------------
start -5.83° 50.94° 95.69km
end   -5.80° 50.98° 84.15km

Orbit Details
-------------
Semimajor axis -5.67A.U., eccentricity 1.02, inclination 20.73°, Period nanY, LA Sun 220.58°, 

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: 2459521.590701748151
Time: 2021-11-03 02:10:36.631040 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001K and UK0024
 Convergence angle = 20.19016 deg
 R.A. =  60.35186  Dec = +26.87595 deg

Best intersection: Stations UK001K and UK0024 with Qconv = 20.19 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   1439111.17 +/- 132.32 m
 Y =   3826194.14 +/- 29.32 m
 Z =   5003435.06 +/- 40.31 m
 Vx =    20393.05 +/- 814.96 m/s
 Vy =    36319.44 +/- 716.69 m/s
 Vz =    21302.28 +/- 375.50 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+nan, +nan, +nan, +nan, +nan, +nan
+nan, +nan, +nan, +nan, +nan, +nan
+nan, +nan, +nan, +nan, +nan, +nan
+nan, +nan, +nan, +nan, +nan, +nan
+nan, +nan, +nan, +nan, +nan, +nan
+nan, +nan, +nan, +nan, +nan, +nan

Timing offsets (from input data):
    UK001K: 0.000153 s
    UK0024: 0.000000 s

Reference point on the trajectory:
  Time: 2021-11-03 02:10:36.631040 UTC
  Lon     = +-5.826983 +/- 0.0018 deg
  Lat     = +50.936283 +/- 0.0002 deg
  Lat geo = +50.750639 +/- 0.0002 deg
  Ht      =   95708.04 +/- 50.14 m

  JD dynamic   = 2459521.591502489056 
  LST apparent = 69.3876759992 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  60.68617 +/- 0.9528 deg
  Dec       = +27.08619 +/- 0.2171 deg
  Azimuth   = 198.76793 +/- 2.0343 deg
  Elevation = +65.25074 +/- 0.2158 deg
  Vavg      =  46.17738 +/- 0.4484 km/s
  Vinit     =  46.78424 +/- 0.4768 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  61.09192 +/- 0.9528 deg
  Dec       = +27.11078 +/- 0.2171 deg
  Azimuth   = 197.93827 +/- 2.0343 deg
  Elevation = +65.35522 +/- 0.2158 deg
  Vavg      =  46.13816 +/- 0.4484 km/s
  Vinit     =  46.74502 +/- 0.4768 km/s
Radiant (geocentric, J2000):
  R.A.   =  60.25986 +/- 0.9621 deg
  Dec    = +26.67388 +/- 0.2182 deg
  Vg     =  45.44649 +/- 0.4904 km/s
  Vinf   =  46.78424 +/- 0.4768 km/s
  Zc     =  24.57356 +/- 0.2163 deg
  Zg     =  24.93555 +/- 0.2168 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  63.53466 +/- 0.8384 deg
  Bg     =  +5.92732 +/- 0.3062 deg
  Vh     =  44.09916 +/- 0.6717 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  24.15154 +/- 0.6585 deg
  Bh     =  +6.10927 +/- 0.2862 deg
  Vh_x   = -40.01048 +/- 0.7033 km/s
  Vh_y   = -17.94076 +/- 0.4382 km/s
  Vh_z   =  -4.69325 +/- 0.2498 km/s
Orbit:
  La Sun = 220.577141 +/- -0.0000 deg
  a      =  -5.672015 +/- 26.3214 AU
  e      =   1.017049 +/- 0.0052
  i      =  20.733638 +/- 0.8176 deg
  peri   = 322.181681 +/- 2.0143 deg
  node   = 220.576050 +/- 0.0001 deg
  Pi     = 182.757731 +/- 2.0143 deg
  q      =   0.096702 +/- 0.0077 AU
  f      = 217.820814 +/- 2.0143 deg
  M      =        nan +/- nan deg
  Q      = -11.440731 +/- 52.6446 AU
  n      =   0.072962 +/- 0.0314 deg/day
  T      =        nan +/- nan years
  Last perihelion JD = NaN 
  Tj     =  -0.555418 +/- 0.3322
Shower association:
  IAU No.  =  388
  IAU code =  CTA

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +nan, +nan, +nan, +nan, +nan, +nan
q   , +nan, +nan, +nan, +nan, +nan, +nan
Tp  , +nan, +nan, +nan, +nan, +nan, +nan
node, +nan, +nan, +nan, +nan, +nan, +nan
peri, +nan, +nan, +nan, +nan, +nan, +nan
i   , +nan, +nan, +nan, +nan, +nan, +nan

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.172103
 a2 = 26.716832

Mean time residuals from time vs. length:
  Station with reference time: UK0024
  Avg. res. = 5.259e-06 s
  Stddev    = 2.29e-03 s

Begin point on the trajectory:
  Lon =    -5.826938 +/- 0.0018 deg
  Lat =    50.936367 +/- 0.0002 deg
  Ht  = 95686.36 +/- 57.85 m
End point on the trajectory:
  Lon =    -5.804072 +/- 0.0022 deg
  Lat =    50.981031 +/- 0.0003 deg
  Ht  = 84153.47 +/- 58.44 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
    UK001K,   False,    -3.557111,    51.483925,   37.50,  59.216711,   0.000001,    93908.28,    85256.62,          0.018253,     59.04,     15.03,              48.89, 1.0000,    True,    True, {"ff_name": "FF_UK001K_20211103_021029_473_0785664.fits"}
    UK0024,   False,    -2.949770,    50.877440,   82.00,   0.134355,  27.668379,    95686.36,    84153.47,          0.011214,     43.31,      2.74,              61.64, 1.0000,    True,    True, {"ff_name": "FF_UK0024_20211103_021029_485_0796928.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,     UK001K,       0,  0.049961, 2459521.590702318121,  14.13929,  10.40407,              250.07078,  28.04909,       250.08613,       28.05567,     14.13929,     +10.40407,      14.13241,      +10.41742,  1438247.29,  3824655.60,  5002532.67,      50.943242,       -5.823446,   93908.28,  194745.87,       0.00,             1981.84,  -210.88,      0.00,           49253.02,    -12.64,    -49.60,          54.22,  +1.00,  -0.45
  1,     UK001K,       0,  0.090237, 2459521.590702784713,  13.71684,  10.21539,              250.32133,  27.65000,       250.31151,       27.64579,     13.71684,     +10.21539,      13.72176,      +10.20682,  1437331.94,  3823025.38,  5001576.51,      50.950620,       -5.819644,   92001.37,  193324.29,    2099.94,             4081.78,     4.78,  52138.68,           49253.02,      8.04,     31.60,          34.79,  +0.85,  -0.58
  2,     UK001K,       0,  0.130525, 2459521.590703250840,  13.36199,   9.99196,              250.48744,  27.26240,       250.51441,       27.27394,     13.36199,      +9.99196,      13.34997,      +10.01552,  1436514.03,  3821568.71,  5000722.13,      50.957216,       -5.816263,   90297.54,  192065.55,    3976.33,             5958.17,    -3.68,  46574.45,           49253.02,    -22.05,    -86.42,          95.79,  +0.78,  -0.64
  3,     UK001K,       0,  0.170785, 2459521.590703716967,  12.93726,   9.82386,              250.75205,  26.87795,       250.73314,       26.86986,     12.93726,      +9.82386,      12.94680,       +9.80731,  1435637.62,  3820007.85,  4999806.64,      50.964287,       -5.812624,   88471.94,  190727.31,    5986.92,             7968.77,   123.39,  49940.26,           49253.02,     15.33,     60.35,          67.34,  +0.59,  -0.81
  4,     UK001K,       0,  0.211013, 2459521.590704182163,  12.61616,   9.65451,              250.92316,  26.55319,       250.90713,       26.54634,     12.61616,      +9.65451,      12.62456,       +9.64045,  1434945.87,  3818775.86,  4999084.05,      50.969871,       -5.809784,   87031.05,  189681.43,    7573.88,             9555.72,  -171.69,  39449.11,           47273.97,     12.96,     50.99,          57.21,  +1.13,  -0.26
  5,     UK001K,       0,  0.251297, 2459521.590704648755,  12.21353,   9.44909,              251.14167,  26.15131,       251.12236,       26.14306,     12.21353,      +9.44909,      12.22367,       +9.43212,  1434093.95,  3817258.61,  4998194.15,      50.976752,       -5.806246,   85256.62,  188401.47,    9528.30,            11510.14,  -101.93,  48516.04,           46885.59,     15.54,     61.17,          69.10,  +1.69,  +0.31
  0,     UK0024,       0,  0.000000, 2459521.590701748151, 355.96075,  20.36216,              272.97553,  24.20495,       272.97160,       24.20307,    355.96075,     +20.36216,     355.96223,      +20.35836,  1439100.76,  3826175.60,  5003424.19,      50.936367,       -5.826938,   95686.36,  225267.86,       0.00,               23.88,   168.53,      0.00,           45825.32,     -1.00,     15.87,          14.56,  +3.93,  +2.17
  1,     UK0024,       0,  0.040292, 2459521.590702214278, 355.57297,  20.21370,              273.16133,  23.85065,       273.17030,       23.85493,    355.57297,     +20.21370,     355.56973,      +20.22237,  1438321.42,  3824787.61,  5002610.10,      50.942645,       -5.823729,   94062.70,  224363.47,    1787.92,             1811.80,    71.41,  44373.97,           45825.32,      2.28,    -36.15,          33.30,  +2.81,  +1.06
  2,     UK0024,       0,  0.080556, 2459521.590702680405, 355.19470,  20.09903,              273.36481,  23.52734,       273.35796,       23.52407,    355.19470,     +20.09903,     355.19766,      +20.09240,  1437587.20,  3823479.98,  5001843.14,      50.948562,       -5.820714,   92533.11,  223521.78,    3472.32,             3496.19,  -127.91,  41833.88,           45825.32,     -1.74,     27.55,          25.48,  +2.07,  +0.32
  3,     UK0024,       0,  0.120892, 2459521.590703147464, 354.71877,  19.94394,              273.61295,  23.11250,       273.59495,       23.10391,    354.71877,     +19.94394,     354.72623,      +19.92647,  1436662.63,  3821833.36,  5000877.35,      50.956017,       -5.816870,   90607.10,  222472.64,    5593.38,             5617.26,   106.07,  52584.91,           45825.32,     -4.59,     72.28,          67.15,  +2.04,  +0.30
  4,     UK0024,       0,  0.161180, 2459521.590703613590, 354.34773,  19.78096,              273.77594,  22.75781,       273.78605,       22.76263,    354.34773,     +19.78096,     354.34446,      +19.79079,  1435919.06,  3820509.07,  5000100.63,      50.962016,       -5.813809,   89058.17,  221642.08,    7299.24,             7323.12,   -72.92,  42341.62,           45672.27,      2.55,    -40.53,          37.80,  +1.78,  +0.05
  5,     UK0024,       0,  0.201492, 2459521.590704080183, 353.89512,  19.64766,              274.02247,  22.37377,       274.00676,       22.36628,    353.89512,     +19.64766,     353.90212,      +19.63238,  1435062.60,  3818983.76,  4999205.99,      50.968929,       -5.810255,   87274.20,  220696.21,    9264.05,             9287.93,     5.93,  48740.13,           46066.99,     -3.99,     62.82,          58.83,  +2.40,  +0.68
  6,     UK0024,       0,  0.241784, 2459521.590704546776, 353.50317,  19.49117,              274.20642,  22.01063,       274.20412,       22.00953,    353.50317,     +19.49117,     353.50509,      +19.48893,  1434298.73,  3817623.32,  4998408.06,      50.975097,       -5.807101,   85683.14,  219865.12,   11016.47,            11040.35,  -126.68,  43493.04,           45932.20,     -0.58,      9.17,           8.62,  +2.81,  +1.10
  7,     UK0024,       0,  0.282068, 2459521.590705012903, 353.12423,  19.33877,              274.38369,  21.65867,       274.39432,       21.66373,    353.12423,     +19.33877,     353.12118,      +19.34913,  1433564.30,  3816315.32,  4997640.88,      50.981031,       -5.804072,   84153.47,  219076.67,   12701.35,            12725.23,  -326.46,  41824.90,           45533.90,      2.66,    -42.35,          39.96,  +4.96,  +3.26

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.