Orbital Analysis for matched events on 20211015_035423.172_UK

Back to daily index
Summary for Event
-----------------
shower ID -1 spo
Lg 70.56° Bg 6.81° Vg 59.54km/s
mass 0.05276g, abs. mag -1.2
best visual mag -0.0
Path Details
------------
start 1.08° 54.40° 106.16km
end   1.13° 54.46° 91.41km

Orbit Details
-------------
Semimajor axis -23.07A.U., eccentricity 1.01, inclination 154.28°, Period nanY, LA Sun 201.72°, 

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: 2459502.662768200971
Time: 2021-10-15 03:54:23.172564 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK002X and UK004B
 Convergence angle = 54.82338 deg
 R.A. =  68.64764  Dec = +29.03987 deg

Best intersection: Stations UK002X and UK004B with Qconv = 54.82 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =    423091.86 +/- 38.09 m
 Y =   3758878.50 +/- 12.37 m
 Z =   5249351.10 +/- 53.72 m
 Vx =    19588.33 +/- 243.99 m/s
 Vy =    49197.72 +/- 117.16 m/s
 Vz =    29392.65 +/- 271.38 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
-1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00

Timing offsets (from input data):
    UK002X: -0.000012 s
    UK004B: 0.000000 s

Reference point on the trajectory:
  Time: 2021-10-15 03:54:23.172564 UTC
  Lon     = ++1.075470 +/- 0.0006 deg
  Lat     = +54.403320 +/- 0.0003 deg
  Lat geo = +54.223965 +/- 0.0004 deg
  Ht      =  106147.54 +/- 39.16 m

  JD dynamic   = 2459502.663568941876 
  LST apparent = 83.5779314382 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  68.28977 +/- 0.2084 deg
  Dec       = +29.03294 +/- 0.2611 deg
  Azimuth   = 209.75331 +/- 0.2212 deg
  Elevation = +62.31888 +/- 0.3010 deg
  Vavg      =  57.86379 +/- 0.0480 km/s
  Vinit     =  60.56440 +/- 0.0609 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  68.57805 +/- 0.2084 deg
  Dec       = +29.06606 +/- 0.2611 deg
  Azimuth   = 209.26327 +/- 0.2212 deg
  Elevation = +62.43282 +/- 0.3010 deg
  Vavg      =  57.80080 +/- 0.0480 km/s
  Vinit     =  60.50141 +/- 0.0609 km/s
Radiant (geocentric, J2000):
  R.A.   =  67.85755 +/- 0.2090 deg
  Dec    = +28.76152 +/- 0.2645 deg
  Vg     =  59.53856 +/- 0.0619 km/s
  Vinf   =  60.56440 +/- 0.0609 km/s
  Zc     =  27.52554 +/- 0.3012 deg
  Zg     =  27.76528 +/- 0.3044 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  70.56388 +/- 0.2192 deg
  Bg     =  +6.80555 +/- 0.2370 deg
  Vh     =  42.63412 +/- 0.0465 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  42.11518 +/- 0.2926 deg
  Bh     =  +9.52672 +/- 0.3491 deg
  Vh_x   = -31.18975 +/- 0.2023 km/s
  Vh_y   = -28.19711 +/- 0.1067 km/s
  Vh_z   =  -7.05627 +/- 0.2515 km/s
Orbit:
  La Sun = 201.723050 +/- -0.0000 deg
  a      = -23.069850 +/- 3.1640 AU
  e      =   1.006403 +/- 0.0005
  i      = 154.281404 +/- 0.5798 deg
  peri   = 314.292409 +/- 0.7340 deg
  node   = 201.724521 +/- 0.0000 deg
  Pi     = 156.016930 +/- 0.7340 deg
  q      =   0.147714 +/- 0.0047 AU
  f      = 225.707103 +/- 0.7340 deg
  M      =        nan +/- nan deg
  Q      = -46.287414 +/- 6.3316 AU
  n      =   0.008895 +/- 0.0013 deg/day
  T      =        nan +/- nan years
  Last perihelion JD = NaN 
  Tj     =  -0.655583 +/- 0.0190
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
q   , -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
Tp  , -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
node, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
peri, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00
i   , -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00, -1.000000e+00

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = -0.009925
 a2 = 37.614589

Mean time residuals from time vs. length:
  Station with reference time: UK004B
  Avg. res. = 3.187e-06 s
  Stddev    = 1.79e-03 s

Begin point on the trajectory:
  Lon =     1.075421 +/- 0.0006 deg
  Lat =    54.403269 +/- 0.0003 deg
  Ht  = 106160.04 +/- 41.16 m
End point on the trajectory:
  Lon =     1.132586 +/- 0.0004 deg
  Lat =    54.462755 +/- 0.0002 deg
  Ht  = 91413.42 +/- 20.03 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
    UK002X,   False,    -3.059440,    54.994170,   18.00,   0.000000,   0.000000,   101710.29,    91413.42,          0.007467,     37.92,      5.71,              76.47, 1.0000,    True,    True, {"ff_name": "FF_UK002X_20211015_035418_979_0518400.fits"}
    UK004B,   False,    -0.382770,    53.537630,   36.00,   0.111759,  30.075186,   106160.04,    93651.49,          0.004941,      8.95,     11.82,              78.44, 1.0000,    True,    True, {"ff_name": "FF_UK004B_20211015_035418_631_0917248.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,     UK002X,       0,  0.090502, 2459502.662769248709, 149.12064,   8.92796,              101.70902,  18.90116,       101.70473,       18.90326,    149.12064,      +8.92796,     149.12319,       +8.93200,   421471.09,  3754807.79,  5246919.09,      54.421190,       +1.092611,  101710.29,  295304.76,       0.00,             5011.21,   -27.52,      0.00,           60202.06,     -3.51,    -23.33,          16.48,  +3.02,  +0.67
  1,     UK002X,       0,  0.130770, 2459502.662769714836, 149.52198,   8.70962,              101.49569,  18.49603,       101.48515,       18.50119,    149.52198,      +8.70962,     149.52787,       +8.71955,   420698.53,  3752867.44,  5245759.86,      54.429716,       +1.100807,   99595.51,  294795.32,    2388.64,             7399.85,   -77.69,  59318.55,           60202.06,     -8.61,    -57.22,          40.49,  +1.76,  -0.59
  2,     UK002X,       0,  0.171050, 2459502.662770180963, 149.95782,   8.48775,              101.25531,  18.06844,       101.25120,       18.07045,    149.95782,      +8.48775,     149.96062,       +8.49163,   419874.40,  3750797.57,  5244523.23,      54.438816,       +1.109571,   97339.74,  294272.90,    4936.74,             9947.95,    30.87,  63259.66,           60202.06,     -3.36,    -22.31,          15.81,  +1.08,  -1.26
  3,     UK002X,       0,  0.211306, 2459502.662770646624, 150.34488,   8.27534,              101.05138,  17.67590,       101.04085,       17.68106,    150.34488,      +8.27534,     150.35114,       +8.28530,   419132.18,  3748933.42,  5243409.52,      54.447017,       +1.117456,   95308.34,  293819.51,    7231.58,            12242.79,  -112.37,  57006.19,           60202.06,     -8.61,    -57.24,          40.63,  +1.33,  -1.01
  4,     UK002X,       0,  0.251586, 2459502.662771113217, 150.78263,   8.04929,              100.81269,  17.24345,       100.80711,       17.24618,    150.78263,      +8.04929,     150.78653,       +8.05457,   418306.54,  3746859.77,  5242170.63,      54.456144,       +1.126256,   93048.84,  293336.50,    9784.33,            14795.55,     0.85,  63375.23,           60619.31,     -4.56,    -30.33,          21.57,  +1.59,  -0.75
  5,     UK002X,       0,  0.291786, 2459502.662771578413, 151.10187,   7.88876,              100.63631,  16.93151,       100.63829,       16.93054,    151.10187,      +7.88876,     151.10207,       +7.88688,   417708.91,  3745358.78,  5241273.88,      54.462755,       +1.132586,   91413.42,  292997.46,   11632.12,            16643.33,  -586.05,  45964.74,           58648.82,      1.63,     10.80,           7.69,  +4.45,  +2.12
  0,     UK004B,       0,  0.000000, 2459502.662768200971, 182.35249,  55.62200,               44.21224,  37.16818,        44.21421,       37.16798,    182.35249,     +55.62200,     182.35086,      +55.62071,   423096.43,  3758889.97,  5249357.95,      54.403269,       +1.075421,  106160.04,  173223.04,       0.00,               14.12,   456.60,      0.00,           57256.45,      3.81,      2.89,           5.70,  +2.88,  +1.69
  1,     UK004B,       0,  0.040548, 2459502.662768670358, 183.29062,  55.23459,               44.11064,  36.51485,        44.10609,       36.51532,    183.29062,     +55.23459,     183.29461,      +55.23756,   422439.73,  3757240.62,  5248372.56,      54.410507,       +1.082345,  104362.09,  172823.65,    2030.41,             2016.29,     3.01,  50074.30,           57256.45,     -8.86,     -6.71,          13.27,  +1.40,  +0.21
  2,     UK004B,       0,  0.081192, 2459502.662769140676, 184.37513,  54.76804,               43.99276,  35.74316,        43.98133,       35.74434,    184.37513,     +54.76804,     184.38525,      +54.77550,   421668.14,  3755302.71,  5247214.78,      54.419016,       +1.090517,  102249.74,  172384.79,    4416.05,             4401.94,   -72.93,  58696.05,           57256.45,    -22.44,    -16.99,          33.68,  +0.56,  -0.62
  3,     UK004B,       0,  0.121888, 2459502.662769611925, 185.52697,  54.27074,               43.84887,  34.91826,        43.85052,       34.91809,    185.52697,     +54.27074,     185.52604,      +54.26967,   420845.66,  3753236.98,  5245980.63,      54.428091,       +1.099250,   99998.25,  171952.52,    6959.06,             6944.94,     5.34,  62487.76,           57256.45,      3.26,      2.47,           4.90,  +0.19,  -0.99
  4,     UK004B,       0,  0.162572, 2459502.662770082708, 186.62430,  53.76418,               43.72037,  34.10522,        43.72427,       34.10482,    186.62430,     +53.76418,     186.62152,      +53.76165,   420040.05,  3751213.62,  5244771.80,      54.436986,       +1.107810,   97793.14,  171564.41,    9449.89,             9435.77,    32.18,  61223.94,           58622.57,      7.77,      5.88,          11.72,  +0.03,  -1.14
  5,     UK004B,       0,  0.203240, 2459502.662770553492, 187.67258,  53.25846,               43.59742,  33.30906,        43.60292,       33.30849,    187.67258,     +53.25846,     187.66848,      +53.25490,   419254.67,  3749241.07,  5243593.32,      54.445663,       +1.116160,   95643.58,  171219.85,   11878.19,            11864.07,    -2.56,  59710.18,           59167.87,     11.03,      8.35,          16.67,  -0.02,  -1.19
  6,     UK004B,       0,  0.243860, 2459502.662771023344, 188.62551,  52.78004,               43.48499,  32.56841,        43.49179,       32.56771,    188.62551,     +52.78004,     188.62032,      +52.77565,   418526.76,  3747412.88,  5242501.08,      54.453709,       +1.123895,   93651.49,  170930.15,   14128.76,            14114.64,  -212.11,  55405.68,           58959.76,     13.74,     10.40,          20.80,  +0.07,  -1.09
  7,     UK004B,       1,  0.284452, 2459502.662771493196, 189.53600,  52.35324,               43.33951,  31.88045,        43.38936,       31.87536,    189.53600,     +52.35324,     189.49119,      +52.32117,   417848.55,  3745709.48,  5241483.41,      54.461210,       +1.131098,   91795.52,  170685.98,   16225.71,            16211.59,  -573.59,  51659.16,           58265.70,    101.32,     76.61,         153.50,  +1.21,  +0.05

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.