Orbital Analysis for matched events on 20211103_053736.050_UK

Back to daily index
Summary for Event
-----------------
shower ID -1 spo
Lg 119.20° Bg -19.18° Vg 66.31km/s
mass 0.00322g, abs. mag 1.2
best visual mag 1.9
Path Details
------------
start -3.06° 50.90° 113.09km
end   -3.04° 50.98° 106.04km

Orbit Details
-------------
Semimajor axis 5.41A.U., eccentricity 0.84, inclination 145.19°, Period 12.59Y, LA Sun 220.72°, last Perihelion 2009-04-29

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: 2459521.734445032664
Time: 2021-11-03 05:37:36.055167 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK003E and UK003Z
 Convergence angle = 5.62954 deg
 R.A. = 118.22218  Dec =  +1.81073 deg

Best intersection: Stations UK003E and UK003Z with Qconv = 5.63 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =  -2296363.18 +/- 186.20 m
 Y =   3398340.91 +/- 1344.92 m
 Z =   5014685.06 +/- 614.65 m
 Vx =   -31305.79 +/- 5037.82 m/s
 Vy =    59465.18 +/- 24829.51 m/s
 Vz =     2132.64 +/- 6372.90 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+2.405725e+04, +1.125126e+05, +5.623195e+04, -7.067667e+05, +1.308597e+06, +2.220190e+04
+1.125126e+05, +7.915129e+05, +3.729930e+05, -3.671069e+06, +7.094437e+06, +2.194005e+05
+5.623195e+04, +3.729930e+05, +1.797939e+05, -1.675275e+06, +3.261420e+06, +1.233919e+05
-7.067667e+05, -3.671069e+06, -1.675275e+06, +1.436396e+08, -2.178209e+08, +1.239417e+07
+1.308597e+06, +7.094437e+06, +3.261420e+06, -2.178209e+08, +3.692671e+08, -4.040088e+06
+2.220190e+04, +2.194005e+05, +1.233919e+05, +1.239417e+07, -4.040088e+06, +7.080099e+06

Timing offsets (from input data):
    UK003E: -0.000073 s
    UK003Z: -0.004381 s

Reference point on the trajectory:
  Time: 2021-11-03 05:37:36.055167 UTC
  Lon     = +-3.055836 +/- 0.0099 deg
  Lat     = +50.905779 +/- 0.0034 deg
  Lat geo = +50.720590 +/- 0.0034 deg
  Ht      =  113004.88 +/- 940.72 m

  JD dynamic   = 2459521.735245823860 
  LST apparent = 124.0481006511 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      = 117.76483 +/- 4.0683 deg
  Dec       =  +1.81765 +/- 3.0880 deg
  Azimuth   = 188.28667 +/- 5.2008 deg
  Elevation = +40.62544 +/- 2.9829 deg
  Vavg      =  65.39232 +/- 4.6902 km/s
  Vinit     =  67.23622 +/- 22.6592 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      = 118.01841 +/- 4.0683 deg
  Dec       =  +1.81852 +/- 3.0880 deg
  Azimuth   = 187.95410 +/- 5.2008 deg
  Elevation = +40.64889 +/- 2.9829 deg
  Vavg      =  65.36027 +/- 4.6902 km/s
  Vinit     =  67.20416 +/- 22.6592 km/s
Radiant (geocentric, J2000):
  R.A.   = 117.44906 +/- 4.0966 deg
  Dec    =  +1.51360 +/- 3.1683 deg
  Vg     =  66.31483 +/- 5.1003 km/s
  Vinf   =  67.23622 +/- 5.0274 km/s
  Zc     =  49.19131 +/- 2.9821 deg
  Zg     =  49.55319 +/- 3.0691 deg
Radiant (ecliptic geocentric, J2000):
  Lg     = 119.20231 +/- 5.0534 deg
  Bg     = -19.18474 +/- 2.1890 deg
  Vh     =  40.30519 +/- 4.7317 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 108.28062 +/- 9.3263 deg
  Bh     = -32.72950 +/- 5.9124 deg
  Vh_x   =  10.63535 +/- 1.7444 km/s
  Vh_y   = -32.19485 +/- 7.4117 km/s
  Vh_z   =  21.79195 +/- 0.9954 km/s
Orbit:
  La Sun = 220.721129 +/- -0.0000 deg
  a      =   5.411790 +/- 12.8216 AU
  e      =   0.837448 +/- 0.3971
  i      = 145.186164 +/- 5.2302 deg
  peri   =  41.281446 +/- 22.1167 deg
  node   =  40.722021 +/- 0.0002 deg
  Pi     =  82.003468 +/- 22.1166 deg
  q      =   0.879695 +/- 0.0386 AU
  f      = 318.717114 +/- 22.1168 deg
  M      = 357.832991 +/- nan deg
  Q      =   9.943884 +/- 25.6383 AU
  n      =   0.078288 +/- 0.2761 deg/day
  T      =  12.589601 +/- nan years
  Last perihelion JD = 2454950.983350 (2009-04-29 11:36:01.399435) +/- 32145.4129 days
  Tj     =   0.046544 +/- 2.3909
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +5.831331e-02, -4.088974e-03, -3.744050e+03, -2.868490e-05, +1.887646e+00, +8.559716e-01
q   , -4.088974e-03, +1.125398e-03, +1.258357e+02, +2.981089e-06, -2.552358e-01, -8.466825e-02
Tp  , -3.744050e+03, +1.258357e+02, +1.180677e+09, +1.673283e+00, -3.616206e+04, -4.650182e+04
node, -2.868490e-05, +2.981089e-06, +1.673283e+00, +1.792841e-08, -1.867314e-03, -5.420104e-04
peri, +1.887646e+00, -2.552358e-01, -3.616206e+04, -1.867314e-03, +4.490737e+02, +6.109527e+01
i   , +8.559716e-01, -8.466825e-02, -4.650182e+04, -5.420104e-04, +6.109527e+01, +1.654962e+01

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: UK003Z
  Avg. res. = 1.409e-05 s
  Stddev    = 3.75e-03 s

Begin point on the trajectory:
  Lon =    -3.056043 +/- 0.0120 deg
  Lat =    50.904882 +/- 0.0036 deg
  Ht  = 113092.95 +/- 1094.68 m
End point on the trajectory:
  Lon =    -3.040111 +/- 0.0085 deg
  Lat =    50.976841 +/- 0.0011 deg
  Ht  = 106042.21 +/- 667.22 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
    UK003E,   False,    -1.802002,    51.351948,  130.00,   0.000000,   0.000000,   113092.95,   106042.21,          0.026287,     57.21,     34.11,              42.11, 1.0000,    True,    True, {"ff_name": "FF_UK003E_20211103_053732_625_1114112.fits"}
    UK003Z,   False,    -1.639327,    51.011519,   64.00,   0.335335,  38.647510,   112906.44,   106268.83,          0.035960,     84.07,     39.90,              56.54, 1.0000,    True,    True, {"ff_name": "FF_UK003Z_20211103_053735_539_1115904.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,     UK003E,       0,  0.004290, 2459521.734445082955,  85.82882,  21.80419,              240.95609,  47.53529,       240.95416,       47.52557,     85.82882,     +21.80419,      85.82379,      +21.79555, -2296426.16,  3398460.53,  5014689.35,      50.904882,       -3.056043,  113092.95,  152058.00,       0.00,              135.26,   160.54,      0.00,           67091.97,     13.35,     22.37,          35.34,  +4.45,  +3.54
  1,     UK003E,       0,  0.044414, 2459521.734445547685,  85.15510,  22.09942,              241.95977,  47.40371,       241.96478,       47.42657,     85.15510,     +22.09942,      85.16700,      +22.11981, -2295034.46,  3395817.00,  5014594.54,      50.924715,       -3.051640,  111147.14,  149686.61,    2989.00,             2853.73,   181.23,  74493.97,           67091.97,    -30.99,    -51.83,          83.22,  +2.06,  +1.18
  2,     UK003E,       0,  0.084490, 2459521.734446011484,  84.63940,  22.36131,              242.75593,  47.32837,       242.75903,       47.34164,     84.63940,     +22.36131,      84.64653,      +22.37318, -2293967.99,  3393791.26,  5014521.89,      50.939921,       -3.048301,  109656.58,  147886.15,    5279.46,             5144.20,  -222.87,  57153.01,           67091.97,    -17.79,    -29.77,          48.38,  +2.08,  +1.23
  3,     UK003E,       0,  0.124602, 2459521.734446475748,  83.95224,  22.68846,              243.79264,  47.20583,       243.79692,       47.22269,     83.95224,     +22.68846,      83.96134,      +22.70362, -2292606.00,  3391204.17,  5014429.11,      50.959351,       -3.043984,  107753.64,  145604.73,    8204.64,             8069.38,     5.34,  72925.41,           67091.97,    -22.32,    -37.33,          61.61,  +2.71,  +1.89
  4,     UK003E,       0,  0.164650, 2459521.734446939081,  83.34668,  23.05014,              244.76763,  47.15151,       244.75476,       47.10382,     83.34668,     +23.05014,      83.32305,      +23.00711, -2291380.62,  3388876.56,  5014345.63,      50.976841,       -3.040111,  106042.21,  143572.74,   10836.43,            10701.16,   -55.56,  65715.67,           67069.36,     62.17,    104.39,         174.55,  +4.00,  +3.21
  0,     UK003Z,       0,  0.000000, 2459521.734445093665,  73.38168,  31.98873,              263.87364,  47.70472,       263.87143,       47.70082,     73.38168,     +31.98873,      73.37947,      +31.98500, -2296292.79,  3398207.19,  5014680.26,      50.906782,       -3.055609,  112906.44,  151488.17,       0.00,              151.18,   464.88,      0.00,           64354.92,      4.73,      9.99,          15.05,  +5.34,  +4.44
  1,     UK003Z,       0,  0.040308, 2459521.734445560258,  72.71364,  32.20969,              264.68076,  47.43538,       264.70661,       47.47979,     72.71364,     +32.20969,      72.73881,      +32.25248, -2295351.44,  3396419.11,  5014616.13,      50.920196,       -3.052686,  111590.26,  150245.60,    2021.76,             2172.94,  -223.52,  50157.67,           64354.92,    -53.66,   -113.08,         171.84,  +2.53,  +1.65
  2,     UK003Z,       0,  0.080688, 2459521.734446027782,  71.76760,  32.61750,              265.91537,  47.11523,       265.93188,       47.14251,     71.76760,     +32.61750,      71.78319,      +32.64406, -2293983.19,  3393820.13,  5014522.93,      50.939704,       -3.048357,  109677.82,  148466.36,    4960.37,             5111.55,     0.10,  72774.02,           64354.92,    -32.76,    -69.10,         106.24,  +1.93,  +1.07
  3,     UK003Z,       0,  0.121084, 2459521.734446495306,  70.84135,  32.95626,              267.04420,  46.75880,       267.07702,       46.81117,     70.84135,     +32.95626,      70.87088,      +33.00779, -2292717.50,  3391415.96,  5014436.70,      50.957760,       -3.044358,  107909.40,  146854.19,    7678.73,             7829.91,     2.38,  67292.70,           64354.92,    -62.67,   -131.95,         205.17,  +2.06,  +1.23
  4,     UK003Z,       0,  0.161392, 2459521.734446961433,  70.00208,  33.35263,              268.15332,  46.49303,       268.14911,       46.48652,     70.00208,     +33.35263,      69.99917,      +33.34616, -2291542.91,  3389184.82,  5014356.69,      50.974524,       -3.040655,  106268.83,  145388.04,   10201.43,            10352.62,  -185.07,  62585.76,           64575.96,      7.74,     16.36,          25.67,  +3.03,  +2.22
  5,     UK003Z,       1,  0.201692, 2459521.734447428025,  69.26452,  33.63370,              269.04563,  46.21369,       269.04015,       46.20541,     69.26452,     +33.63370,      69.26084,      +33.62541, -2290573.62,  3387343.67,  5014290.65,      50.988365,       -3.037624,  104915.42,  144201.54,   12283.19,            12434.37,  -812.94,  51656.50,           62796.23,      9.81,     20.72,          32.79,  +5.82,  +5.03

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.