Orbital Analysis for matched events on 20210929_032507.686_UK

Summary for Event
-----------------
shower ID -1 spo
Lg 87.99° Bg 31.54° Vg 53.96km/s
mass 0.01686g, abs. mag -0.3
Path Details
------------
start -2.57° 53.32° 109.40km
end   -2.61° 53.31° 100.63km

Orbit Details
-------------
Semimajor axis 1.31A.U., eccentricity 0.31, inclination 119.27°, Period 1.50Y, LA Sun 185.92°, last Perihelion 2020-05-14

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: 2459486.642450072337
Time: 2021-09-29 03:25:07.686250 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001L and UK003R
 Convergence angle = 25.08514 deg
 R.A. =  87.27090  Dec = +54.94451 deg
Intersection 2 - Stations: UK001L and UK003X
 Convergence angle = 22.05559 deg
 R.A. =  87.78954  Dec = +53.65411 deg
Intersection 3 - Stations: UK003R and UK003X
 Convergence angle = 3.07539 deg
 R.A. =  91.55794  Dec = +64.00882 deg

Best intersection: Stations UK001L and UK003R with Qconv = 25.09 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   2124830.88 +/- 27.91 m
 Y =   3250592.22 +/- 90.90 m
 Z =   5179923.98 +/- 173.29 m
 Vx =     1573.37 +/- 292.73 m/s
 Vy =    31569.10 +/- 1468.98 m/s
 Vz =    45113.48 +/- 1263.13 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+8.708024e+02, +8.047731e+02, -1.018338e+03, +7.465091e+03, +8.025138e+02, +1.296664e+03
+8.047731e+02, +9.403919e+03, -1.018388e+04, +3.268068e+03, +5.866819e+04, -8.815432e+04
-1.018338e+03, -1.018388e+04, +3.217336e+04, -7.124583e+03, -5.599270e+04, +1.402589e+05
+7.465091e+03, +3.268068e+03, -7.124583e+03, +8.655798e+04, +3.416482e+02, +2.170304e+04
+8.025138e+02, +5.866819e+04, -5.599270e+04, +3.416482e+02, +5.718736e+05, -9.088972e+05
+1.296664e+03, -8.815432e+04, +1.402589e+05, +2.170304e+04, -9.088972e+05, +1.692130e+06

Timing offsets (from input data):
    UK001L: 0.000129 s
    UK003R: 0.000000 s
    UK003T: 0.000000 s
    UK003X: -0.000189 s

Reference point on the trajectory:
  Time: 2021-09-29 03:25:07.686250 UTC
  Lon     = +-2.569281 +/- 0.0007 deg
  Lat     = +53.322022 +/- 0.0013 deg
  Lat geo = +53.140607 +/- 0.0013 deg
  Ht      =  109540.19 +/- 118.92 m

  JD dynamic   = 2459486.643250813242 
  LST apparent = 56.8283582476 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  87.14681 +/- 0.5366 deg
  Dec       = +54.98340 +/- 1.3032 deg
  Azimuth   =  72.39177 +/- 4.2576 deg
  Elevation = +72.30782 +/- 0.2759 deg
  Vavg      =  51.88637 +/- 0.7296 km/s
  Vinit     =  55.08457 +/- 0.7191 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  87.58792 +/- 0.5366 deg
  Dec       = +54.86100 +/- 1.3032 deg
  Azimuth   =  72.68032 +/- 4.2576 deg
  Elevation = +72.04053 +/- 0.2759 deg
  Vavg      =  51.96907 +/- 0.7296 km/s
  Vinit     =  55.16727 +/- 0.7191 km/s
Radiant (geocentric, J2000):
  R.A.   =  87.01639 +/- 0.5434 deg
  Dec    = +54.95585 +/- 1.3159 deg
  Vg     =  53.95530 +/- 0.7337 km/s
  Vinf   =  55.08457 +/- 0.7191 km/s
  Zc     =  17.74788 +/- 0.2745 deg
  Zg     =  17.93317 +/- 0.2779 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  87.99036 +/- 0.3472 deg
  Bg     = +31.53897 +/- 1.3166 deg
  Vh     =  33.06686 +/- 1.2134 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  72.58323 +/- 0.9242 deg
  Bh     = +58.60292 +/- 1.3359 deg
  Vh_x   =  -5.15630 +/- 0.2773 km/s
  Vh_y   = -16.43691 +/- 0.2781 km/s
  Vh_z   = -28.22512 +/- 1.4337 km/s
Orbit:
  La Sun = 185.916020 +/- -0.0000 deg
  a      =   1.309155 +/- 0.2793 AU
  e      =   0.308796 +/- 0.0820
  i      = 119.266860 +/- 1.3056 deg
  peri   = 233.844004 +/- 7.3574 deg
  node   = 185.917435 +/- 0.0000 deg
  Pi     =  59.761438 +/- 7.3574 deg
  q      =   0.904893 +/- 0.0149 AU
  f      = 306.155151 +/- 7.3574 deg
  M      = 330.980887 +/- 6.6310 deg
  Q      =   1.713416 +/- 0.5461 AU
  n      =   0.657988 +/- 0.1103 deg/day
  T      =   1.497915 +/- 0.5557 years
  Last perihelion JD = 2458983.623152 (2020-05-14 02:57:20.344338) +/- 208.7341 days
  Tj     =   3.508859 +/- 0.4964
Shower association:
  IAU No.  =   -1
  IAU code =  ...

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +6.975114e-03, +1.138924e-03, -1.727139e+01, +2.896630e-08, -1.040723e-02, -1.796813e-03
q   , +1.138924e-03, +2.496155e-04, -2.730988e+00, +5.303056e-09, -2.110945e-03, -3.272624e-04
Tp  , -1.727139e+01, -2.730988e+00, +4.377602e+04, -7.100243e-05, +2.498822e+01, +4.410345e+00
node, +2.896630e-08, +5.303056e-09, -7.100243e-05, +1.442225e-13, -4.679899e-08, -8.930297e-09
peri, -1.040723e-02, -2.110945e-03, +2.498822e+01, -4.679899e-08, +1.824472e-02, +2.891243e-03
i   , -1.796813e-03, -3.272624e-04, +4.410345e+00, -8.930297e-09, +2.891243e-03, +5.530708e-04

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.011052
 a2 = 59.594346

Mean time residuals from time vs. length:
  Station with reference time: UK003R
  Avg. res. = 6.697e-07 s
  Stddev    = 8.18e-04 s

Begin point on the trajectory:
  Lon =    -2.569907 +/- 0.0006 deg
  Lat =    53.321903 +/- 0.0013 deg
  Ht  = 109400.73 +/- 89.33 m
End point on the trajectory:
  Lon =    -2.610079 +/- 0.0008 deg
  Lat =    53.314407 +/- 0.0013 deg
  Ht  = 100627.12 +/- 73.23 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
    UK001L,   False,    -1.306160,    51.883100,   80.00,   0.000000,   0.000000,   108552.22,   100627.12,          0.017522,     45.36,     45.66,              60.41, 0.7562,    True,    True, {"ff_name": "FF_UK001L_20210929_032500_407_0791552.fits"}
    UK003R,   False,    -2.379340,    51.361330,  169.00,   2.071530,  28.070475,   109400.73,   101406.69,          0.023414,     33.48,     93.61,              56.85, 0.7010,    True,    True, {"ff_name": "FF_UK003R_20210929_032504_265_0414208.fits"}
    UK003T,    True,    -1.740490,    53.069201,  240.00,   0.000000,   0.000000,   110769.97,    98286.99,          0.418307,       nan,       nan,              42.31, 0.0000,    True,    True, {"ff_name": "FF_UK003T_20210929_032505_390_0804352.fits"}
    UK003X,   False,    -2.362458,    51.684814,  132.00,   0.000000,   0.000000,   106921.66,   100905.09,          0.010847,     15.27,     37.00,              53.26, 0.6422,    True,    True, {"ff_name": "FF_UK003X_20210929_032500_369_0806400.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,     UK001L,       0,  0.021776, 2459486.642450322863, 291.68812,  59.92055,              332.29392,  29.81482,       332.28067,       29.81889,    291.68812,     +59.92055,     291.71165,      +59.91730,  2124801.26,  3249997.91,  5179074.69,      53.321180,       -2.573804,  108552.22,  212860.88,       0.00,             1037.00,    -1.73,      0.00,           55682.74,    -32.16,     31.91,          43.90,  +2.74,  +1.10
  1,     UK001L,       0,  0.062200, 2459486.642450790852, 291.47206,  59.40962,              332.06185,  29.33293,       332.07869,       29.32777,    291.47206,     +59.40962,     291.44281,      +59.41371,  2124739.86,  3248765.81,  5177313.97,      53.319432,       -2.583166,  106504.06,  211913.18,    2149.87,             3186.88,   -78.59,  53183.09,           55682.74,     40.83,    -40.56,          56.02,  +1.71,  +0.08
  2,     UK001L,       0,  0.102680, 2459486.642451259308, 291.13907,  58.86806,              331.87260,  28.78970,       331.86137,       28.79314,    291.13907,     +58.86806,     291.15897,      +58.86537,  2124673.66,  3247437.57,  5175415.86,      53.317546,       -2.593251,  104296.13,  210911.01,    4467.50,             5504.51,     9.21,  57253.73,           55682.74,    -27.23,     27.02,          37.52,  +1.08,  -0.54
  3,     UK001L,       0,  0.143136, 2459486.642451727763, 290.93462,  58.31626,              331.62084,  28.27306,       331.64875,       28.26451,    290.93462,     +58.31626,     290.88728,      +58.32289,  2124608.85,  3246137.24,  5173557.64,      53.315697,       -2.603133,  102134.66,  209950.20,    6736.43,             7773.43,    49.64,  56083.80,           55682.74,     67.66,    -67.25,          93.72,  +1.29,  -0.32
  4,     UK001L,       0,  0.183468, 2459486.642452194355, 290.73607,  57.93586,              331.47943,  27.89873,       331.49965,       27.89253,    290.73607,     +57.93586,     290.70235,      +57.94063,  2124563.65,  3245230.31,  5172261.60,      53.314407,       -2.610079,  100627.12,  209293.52,    8318.93,             9355.93,  -589.53,  39236.82,           52496.11,     49.01,    -48.70,          68.10,  +5.01,  +3.41
  0,     UK003R,       0,  0.000000, 2459486.642450072337, 243.88001,  63.89225,              356.66401,  25.37833,       356.66842,       25.37688,    243.88001,     +63.89225,     243.87073,      +63.89114,  2124826.70,  3250508.32,  5179804.09,      53.321903,       -2.569907,  109400.73,  245990.92,       0.00,              146.38,   307.17,      0.00,           51955.67,     17.11,     -6.13,          15.24,  +4.82,  +2.87
  1,     UK003R,       0,  0.040320, 2459486.642450538930, 244.04262,  63.49886,              356.54840,  24.99232,       356.51583,       25.00298,    244.04262,     +63.49886,     244.11073,      +63.50699,  2124770.50,  3249380.62,  5178192.55,      53.320304,       -2.578487,  107526.07,  245006.81,    1967.72,             2114.11,    53.89,  48802.70,           51955.67,   -126.38,     45.19,         113.00,  +3.17,  +1.22
  2,     UK003R,       0,  0.080636, 2459486.642451005522, 244.33702,  63.10292,              356.36577,  24.60919,       356.35742,       24.61193,    244.33702,     +63.10292,     244.35461,      +63.10498,  2124712.22,  3248211.22,  5176521.44,      53.318645,       -2.587383,  105582.16,  243998.92,    4008.19,             4154.57,  -126.43,  50611.87,           51955.67,    -32.37,     11.59,          29.07,  +1.99,  +0.05
  3,     UK003R,       0,  0.121004, 2459486.642451473046, 244.57433,  62.64236,              356.20256,  24.16006,       356.17911,       24.16774,    244.57433,     +62.64236,     244.62272,      +62.64808,  2124646.62,  3246895.01,  5174640.53,      53.316775,       -2.597380,  103394.25,  242879.98,    6304.83,             6451.21,   -53.45,  56892.50,           51955.67,    -90.73,     32.47,          81.84,  +2.03,  +0.10
  4,     UK003R,       0,  0.161340, 2459486.642451939639, 244.79043,  62.22047,              356.05151,  23.74904,       356.01653,       23.76048,    244.79043,     +62.22047,     244.86179,      +62.22890,  2124587.02,  3245699.30,  5172931.80,      53.315074,       -2.606482,  101406.69,  241878.00,    8391.22,             8537.60,  -188.95,  51725.23,           52358.83,   -135.15,     48.34,         122.40,  +2.21,  +0.29
  0,     UK003T,       1, -0.018501, 2459486.642449858133,   5.22554,  56.32387,              297.59989,  60.26786,       297.51233,       60.28199,      5.22554,     +56.32387,       5.27177,      +56.28613,  2124867.75,  3251331.98,  5180981.14,      53.323070,       -2.563688,  110769.97,  126920.06,       0.00,             1290.82,  2470.72,     -0.00,           56112.86,    -10.02,    100.64,         164.36,  +2.48,  +1.96
  1,     UK003T,       1,  0.022135, 2459486.642450328451,   4.26416,  55.80814,              296.92614,  59.60448,       297.06112,       59.58273,      4.26416,     +55.80814,       4.19063,      +55.86671,  2124801.42,  3250001.15,  5179079.32,      53.321184,       -2.573782,  108557.61,  125248.85,    2322.16,             1031.35,   -27.16,  57145.47,           56112.86,     15.06,   -156.00,         258.10,  +1.52,  +1.03
  2,     UK003T,       1,  0.062767, 2459486.642450798769,   3.34884,  55.28676,              296.27416,  58.94949,       296.63401,       58.89156,      3.34884,     +55.28676,       3.14716,      +55.44389,  2124737.70,  3248722.46,  5177252.02,      53.319370,       -2.583492,  106431.99,  123663.24,    4553.34,             3262.52,   -34.18,  54911.77,           56112.86,     39.09,   -418.16,         700.51,  +1.02,  +0.56
  3,     UK003T,       1,  0.103431, 2459486.642451269552,   2.39300,  54.73666,              295.63158,  58.24883,       296.19964,       58.15747,      2.39300,     +54.73666,       2.06549,      +54.98627,  2124671.86,  3247401.52,  5175364.35,      53.317495,       -2.593523,  104236.21,  122046.40,    6858.22,             5567.40,    30.74,  56681.07,           56112.86,     60.15,   -663.89,        1126.62,  +0.85,  +0.42
  4,     UK003T,       1,  0.144103, 2459486.642451740336,   1.48301,  54.16672,              294.98421,  57.55142,       295.78335,       57.42298,      1.48301,     +54.16672,       1.00990,      +54.51990,  2124607.81,  3246116.39,  5173527.85,      53.315668,       -2.603293,  102100.00,  120495.12,    9100.63,             7809.82,    32.75,  55134.08,           55933.79,     82.07,   -939.25,        1613.95,  +0.93,  +0.53
  5,     UK003T,       1,  0.184719, 2459486.642452210188,   0.67784,  53.62804,              294.39176,  56.90922,       295.41409,       56.74498,      0.67784,     +53.62804,       0.05857,      +54.08207,  2124550.24,  3244961.25,  5171877.10,      53.314024,       -2.612096,  100179.90,  119120.19,   11116.23,             9825.41,  -188.97,  49625.67,           54982.28,    101.75,  -1207.77,        2098.78,  +1.70,  +1.32
  6,     UK003T,       1,  0.225351, 2459486.642452680506, 359.90494,  53.06685,              293.78576,  56.26388,       295.05488,       56.06004,    359.90494,     +53.06685,     359.11931,      +53.63300,  2124493.48,  3243822.43,  5170249.69,      53.312402,       -2.620782,   98286.99,  117782.92,   13103.33,            11812.52,  -440.06,  48904.91,           53991.52,    121.71,  -1507.03,        2647.81,  +4.10,  +3.74
  0,     UK003X,       0,  0.054445, 2459486.642450704705, 247.46190,  67.35539,              355.41719,  29.29885,       355.41801,       29.29858,    247.46190,     +67.35539,     247.46020,      +67.35522,  2124752.38,  3249017.03,  5177672.97,      53.319788,       -2.581260,  106921.66,  212798.45,       0.00,             2748.53,   -89.75,      0.00,           52430.56,      2.62,     -1.08,           2.75,  +2.06,  +0.42
  1,     UK003X,       0,  0.094797, 2459486.642451171763, 247.83033,  66.84341,              355.17810,  28.80997,       355.20021,       28.80267,    247.83033,     +66.84341,     247.77944,      +66.83873,  2124685.57,  3247676.68,  5175757.56,      53.317886,       -2.591434,  104693.60,  211527.08,    2338.76,             5087.29,    26.23,  57958.91,           52430.56,     70.66,    -29.16,          74.54,  +1.33,  -0.30
  2,     UK003X,       0,  0.135149, 2459486.642451638822, 248.08602,  66.34830,              354.98808,  28.33290,       354.99478,       28.33069,    248.08602,     +66.34830,     248.07128,      +66.34691,  2124622.77,  3246416.59,  5173956.84,      53.316095,       -2.601014,  102598.99,  210348.66,    4537.48,             7286.01,     2.18,  54488.55,           52430.56,     21.38,     -8.82,          22.67,  +1.40,  -0.21
  3,     UK003X,       0,  0.175433, 2459486.642452104948, 248.30518,  65.94493,              354.82626,  27.94534,       354.82765,       27.94488,    248.30518,     +65.94493,     248.30277,      +65.94464,  2124571.98,  3245397.53,  5172500.57,      53.314645,       -2.608797,  100905.09,  209407.90,    6315.62,             9064.15,  -438.71,  44139.98,           52430.56,      4.44,     -1.83,           4.73,  +2.78,  +1.18

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.