Orbital Analysis for matched events on 20211103_060023.681_UK

Back to daily index
Summary for Event
-----------------
shower ID 8 ORI
Lg 107.47° Bg -3.94° Vg 64.28km/s
mass 0.01382g, abs. mag -0.2
best visual mag 0.3
Path Details
------------
start -4.91° 52.86° 111.82km
end   -4.85° 52.93° 99.86km

Orbit Details
-------------
Semimajor axis 3.28A.U., eccentricity 0.84, inclination 171.32°, Period 5.93Y, LA Sun 220.74°, last Perihelion 2016-01-09

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: 2459521.750274093356
Time: 2021-11-03 06:00:23.694782 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK0042 and UK004M
 Convergence angle = 8.89430 deg
 R.A. = 109.46761  Dec = +17.65039 deg

Best intersection: Stations UK0042 and UK004M with Qconv = 8.89 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =  -2412314.95 +/- 18.03 m
 Y =   3098498.79 +/- 73.25 m
 Z =   5150440.16 +/- 124.46 m
 Vx =   -19935.40 +/- 202.12 m/s
 Vy =    58514.78 +/- 517.73 m/s
 Vz =    20830.62 +/- 846.27 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+3.487161e+02, +1.124970e+03, +2.132917e+03, +3.295483e+03, +5.170435e+03, +1.374419e+04
+1.124970e+03, +5.650744e+03, +9.555018e+03, +1.294304e+04, +2.148056e+04, +5.789412e+04
+2.132917e+03, +9.555018e+03, +1.671153e+04, +2.320534e+04, +3.809372e+04, +1.027928e+05
+3.295483e+03, +1.294304e+04, +2.320534e+04, +4.528370e+04, +6.762664e+04, +1.905216e+05
+5.170435e+03, +2.148056e+04, +3.809372e+04, +6.762664e+04, +1.038942e+05, +2.896976e+05
+1.374419e+04, +5.789412e+04, +1.027928e+05, +1.905216e+05, +2.896976e+05, +8.179071e+05

Timing offsets (from input data):
    UK0042: 0.000108 s
    UK004M: 0.000000 s

Reference point on the trajectory:
  Time: 2021-11-03 06:00:23.694782 UTC
  Lon     = +-4.915741 +/- 0.0008 deg
  Lat     = +52.859377 +/- 0.0003 deg
  Lat geo = +52.677189 +/- 0.0004 deg
  Ht      =  112006.56 +/- 127.96 m

  JD dynamic   = 2459521.751074986067 
  LST apparent = 127.9022963777 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 108.81346 +/- 0.2619 deg
  Dec       = +18.62226 +/- 0.6453 deg
  Azimuth   = 210.74199 +/- 0.6995 deg
  Elevation = +52.67931 +/- 0.5374 deg
  Vavg      =  65.31655 +/- 0.4965 km/s
  Vinit     =  65.23278 +/- 0.4525 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 109.06465 +/- 0.2619 deg
  Dec       = +18.64840 +/- 0.6453 deg
  Azimuth   = 210.38413 +/- 0.6995 deg
  Elevation = +52.78115 +/- 0.5374 deg
  Vavg      =  65.22837 +/- 0.4965 km/s
  Vinit     =  65.14460 +/- 0.4525 km/s
Radiant (geocentric, J2000):
  R.A.   = 108.39759 +/- 0.2634 deg
  Dec    = +18.39391 +/- 0.6540 deg
  Vg     =  64.28242 +/- 0.4595 km/s
  Vinf   =  65.23278 +/- 0.4525 km/s
  Zc     =  37.16420 +/- 0.5363 deg
  Zg     =  37.44688 +/- 0.5452 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 107.46915 +/- 0.3358 deg
  Bg     =  -3.93508 +/- 0.6159 deg
  Vh     =  38.95821 +/- 0.5051 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  88.99761 +/- 0.2844 deg
  Bh     =  -6.50172 +/- 1.0928 deg
  Vh_x   =  -0.67716 +/- 0.1893 km/s
  Vh_y   = -38.70173 +/- 0.6090 km/s
  Vh_z   =   4.41136 +/- 0.6350 km/s
Orbit:
  La Sun = 220.736986 +/- -0.0000 deg
  a      =   3.277153 +/- 0.2786 AU
  e      =   0.843220 +/- 0.0216
  i      = 171.316550 +/- 1.3756 deg
  peri   =  93.081348 +/- 1.1048 deg
  node   =  40.734257 +/- 0.0004 deg
  Pi     = 133.815605 +/- 1.1053 deg
  q      =   0.513791 +/- 0.0013 AU
  f      = 266.913828 +/- 1.1044 deg
  M      = 352.951034 +/- 1.9766 deg
  Q      =   6.040514 +/- 0.5562 AU
  n      =   0.166134 +/- 0.0404 deg/day
  T      =   5.932608 +/- 0.6740 years
  Last perihelion JD = 2457397.257711 (2016-01-09 18:11:06.198398) +/- 246.9328 days
  Tj     =   0.744662 +/- 0.2341
Shower association:
  IAU No.  =    8
  IAU code =  ORI

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +5.595000e-04, +2.618053e-05, -6.622801e+00, -1.195635e-05, -2.793974e-02, +3.559285e-02
q   , +2.618053e-05, +1.879416e-06, -2.992909e-01, -5.382948e-07, -1.403915e-03, +1.664425e-03
Tp  , -6.622801e+00, -2.992909e-01, +8.071034e+04, +1.450798e-01, +3.274213e+02, -4.211304e+02
node, -1.195635e-05, -5.382948e-07, +1.450798e-01, +2.617681e-07, +5.912422e-04, -7.628772e-04
peri, -2.793974e-02, -1.403915e-03, +3.274213e+02, +5.912422e-04, +1.410921e+00, -1.777136e+00
i   , +3.559285e-02, +1.664425e-03, -4.211304e+02, -7.628772e-04, -1.777136e+00, +2.272853e+00

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: UK004M
  Avg. res. = 1.477e-06 s
  Stddev    = 1.22e-03 s

Begin point on the trajectory:
  Lon =    -4.914702 +/- 0.0007 deg
  Lat =    52.860434 +/- 0.0005 deg
  Ht  = 111823.94 +/- 97.23 m
End point on the trajectory:
  Lon =    -4.847339 +/- 0.0007 deg
  Lat =    52.929831 +/- 0.0004 deg
  Ht  = 99856.16 +/- 107.38 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
    UK0042,   False,    -4.169906,    52.265619,  152.00,   0.000000,   0.000000,   111823.94,   101204.54,          0.001901,      4.42,      1.05,              61.29, 1.0000,    True,    True, {"ff_name": "FF_UK0042_20211103_060016_049_1132032.fits"}
    UK004M,   False,    -3.939979,    52.538916,   19.00,   0.000000,   0.000000,   110392.44,    99856.16,          0.010507,     23.52,      1.79,              49.07, 1.0000,    True,    True, {"ff_name": "FF_UK004M_20211103_060018_075_1129984.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,     UK0042,       0,  0.013183, 2459521.750274245162,  54.54042,  67.67718,              322.94902,  52.67806,       322.95051,       52.67883,     54.54042,     +67.67718,      54.54189,      +67.67824, -2412244.77,  3098292.80,  5150366.84,      52.860434,       -4.914702,  111823.94,  139728.88,       0.00,              229.63,     1.22,      0.00,           64868.23,      0.67,     -2.82,           4.27,  +2.75,  +2.02
  1,     UK0042,       0,  0.053987, 2459521.750274717342,  52.28587,  68.08871,              323.94879,  51.95952,       323.94500,       51.95755,     52.28587,     +68.08871,      52.28266,      +68.08594, -2411437.06,  3095921.99,  5149522.85,      52.872600,       -4.902913,  109722.28,  138415.64,    2643.01,             2872.64,   -17.53,  64773.24,           64868.23,     -1.70,      7.17,          10.98,  +1.00,  +0.29
  2,     UK0042,       0,  0.094767, 2459521.750275189523,  50.01497,  68.45075,              324.87933,  51.24969,       324.87948,       51.24977,     50.01497,     +68.45075,      50.01549,      +68.45085, -2410667.43,  3093662.98,  5148718.67,      52.884198,       -4.891674,  107720.09,  137200.07,    5161.37,             5391.00,  -159.36,  61754.77,           64868.23,      0.06,     -0.27,           0.42,  +0.63,  -0.06
  3,     UK0042,       0,  0.135659, 2459521.750275662635,  47.33482,  68.82750,              325.91070,  50.43079,       325.91354,       50.43223,     47.33482,     +68.82750,      47.33760,      +68.82967, -2409803.91,  3091128.33,  5147816.36,      52.897219,       -4.879028,  105474.01,  135878.13,    7987.01,             8216.64,    -1.22,  69100.22,           64868.23,      1.26,     -5.34,           8.33,  +0.54,  -0.13
  4,     UK0042,       0,  0.176571, 2459521.750276136212,  44.52383,  69.17246,              326.93221,  49.59255,       326.92958,       49.59123,     44.52383,     +69.17246,      44.52273,      +69.17040, -2408941.81,  3088597.88,  5146915.55,      52.910226,       -4.866387,  103232.08,  134604.44,   10807.98,            11037.61,   150.95,  68952.12,           66006.96,     -1.17,      4.94,           7.77,  +1.14,  +0.49
  5,     UK0042,       0,  0.217415, 2459521.750276608858,  41.85577,  69.44091,              327.83261,  48.80854,       327.83378,       48.80913,     41.85577,     +69.44091,      41.85740,      +69.44185, -2408162.01,  3086309.00,  5146100.73,      52.921997,       -4.854954,  101204.54,  133493.47,   13359.65,            13589.28,    38.25,  62473.47,           65826.95,      0.52,     -2.20,           3.50,  +1.98,  +1.35
  6,     UK0042,       1,  0.258159, 2459521.750277080573,  39.46730,  69.65049,              328.61041,  48.11969,       328.60385,       48.11646,     39.46730,     +69.65049,      39.46490,      +69.64519, -2407487.65,  3084329.62,  5145396.10,      52.932182,       -4.845079,   99451.45,  132565.24,   15566.27,            15795.90,  -412.98,  54158.16,           64515.96,     -2.90,     12.25,          19.58,  +4.18,  +3.57
  0,     UK004M,       1,  0.000000, 2459521.750274093356,  68.94676,  55.15872,              298.81495,  55.64689,       298.78899,       55.62561,     68.94676,     +55.15872,      68.92129,      +55.13737, -2412312.94,  3098492.91,  5150438.07,      52.859407,       -4.915656,  112001.35,  135133.20,       0.00,                6.55,   638.09,      0.00,           60761.58,     -4.68,     60.75,          93.00,  +5.54,  +4.89
  1,     UK004M,       0,  0.040480, 2459521.750274561811,  67.97872,  55.48192,              299.69695,  55.24987,       299.70575,       55.25694,     67.97872,     +55.48192,      67.98733,      +55.48915, -2411694.63,  3096678.02,  5149791.99,      52.868720,       -4.906672,  110392.44,  133776.14,    2023.26,             2029.81,    20.73,  49981.70,           60761.58,      1.54,    -20.18,          31.20,  +1.13,  +0.50
  2,     UK004M,       0,  0.081076, 2459521.750275031663,  66.75386,  55.92462,              300.85228,  54.76678,       300.86115,       54.77374,     66.75386,     +55.92462,      66.76248,      +55.93191, -2410917.16,  3094395.98,  5148979.61,      52.880434,       -4.895321,  108369.72,  132092.36,    4567.29,             4573.84,   -83.43,  62667.06,           60761.58,      1.51,    -19.87,          31.12,  +0.47,  -0.13
  3,     UK004M,       0,  0.121752, 2459521.750275502447,  65.33545,  56.41227,              302.12872,  54.20850,       302.13621,       54.21425,     65.33545,     +56.41227,      65.34275,      +56.41845, -2410060.20,  3091880.63,  5148084.17,      52.893354,       -4.882776,  106140.61,  130268.02,    7371.43,             7377.98,    67.30,  68938.48,           60761.58,      1.24,    -16.39,          26.03,  +0.34,  -0.23
  4,     UK004M,       0,  0.162384, 2459521.750275972765,  63.96356,  56.87449,              303.32881,  53.67587,       303.31906,       53.66855,     63.96356,     +56.87449,      63.95566,      +56.86643, -2409264.98,  3089546.47,  5147253.24,      52.905349,       -4.871132,  104072.45,  128606.90,    9973.58,             9980.12,    18.91,  64041.70,           62300.64,     -1.59,     20.88,          33.59,  +0.65,  +0.10
  5,     UK004M,       0,  0.203040, 2459521.750276443549,  62.50687,  57.32665,              304.52394,  53.10796,       304.50567,       53.09452,     62.50687,     +57.32665,      62.49219,      +57.31147, -2408466.50,  3087202.74,  5146418.90,      52.917400,       -4.859427,  101996.20,  126970.59,   12586.38,            12592.92,   -20.40,  64266.06,           63020.97,     -2.92,     38.32,          62.44,  +1.64,  +1.12
  6,     UK004M,       0,  0.243744, 2459521.750276914332,  60.91210,  57.77102,              305.73591,  52.48134,       305.72689,       52.47484,     60.91210,     +57.77102,      60.90573,      +57.76348, -2407643.33,  3084786.58,  5145558.77,      52.929831,       -4.847339,   99856.16,  125318.02,   15279.94,            15286.48,    17.93,  66174.35,           63616.68,     -1.41,     18.56,          30.64,  +2.94,  +2.45
  7,     UK004M,       1,  0.284464, 2459521.750277385581,  59.22229,  58.24372,              307.00495,  51.83418,       306.97236,       51.81117,     59.22229,     +58.24372,      59.19789,      +58.21627, -2406801.58,  3082315.83,  5144679.21,      52.942549,       -4.834959,   97668.19,  123665.65,   18034.35,            18040.89,   116.06,  67642.66,           64201.01,     -5.03,     65.82,         110.10,  +5.63,  +5.17

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.