Orbital Analysis for matched events on 20211111_224521.599_UK

Back to daily index
Summary for Event
-----------------
shower ID 17 NTA (Northern Taurids)
Lg 55.52° Bg 2.66° Vg 24.49km/s
mass 0.07217g, abs. mag 0.9
best visual mag 1.5
Path Details
------------
start -0.61° 52.08° 91.33km
end   -0.68° 52.13° 79.73km

Orbit Details
-------------
Semimajor axis 2.10A.U., eccentricity 0.78, inclination 2.36°, Period 3.04Y, LA Sun 229.47°, last Perihelion 2018-12-11

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: 2459530.448166665155
Time: 2021-11-11 22:45:21.599869 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK000C and UK003X
 Convergence angle = 52.16495 deg
 R.A. =  52.92226  Dec = +23.39374 deg

Best intersection: Stations UK000C and UK003X with Qconv = 52.16 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3378234.77 +/- 41.43 m
 Y =   2112447.01 +/- 56.20 m
 Z =   5080257.95 +/- 83.96 m
 Vx =    15161.65 +/- 181.79 m/s
 Vy =    19517.17 +/- 128.00 m/s
 Vz =    10608.74 +/- 214.03 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.877462e+03, +1.025715e+03, +1.973288e+02, +9.556629e+02, -2.181502e+03, -3.509248e+03
+1.025715e+03, +3.250243e+03, +3.575068e+03, -2.212466e+03, +2.899492e+03, +5.296785e+03
+1.973288e+02, +3.575068e+03, +7.227220e+03, -3.670689e+03, +4.550982e+03, +1.572445e+04
+9.556629e+02, -2.212466e+03, -3.670689e+03, +3.732351e+03, -5.536927e+03, -1.066498e+04
-2.181502e+03, +2.899492e+03, +4.550982e+03, -5.536927e+03, +9.588229e+03, +1.459472e+04
-3.509248e+03, +5.296785e+03, +1.572445e+04, -1.066498e+04, +1.459472e+04, +4.738913e+04

Timing offsets (from input data):
    UK000C: 0.000288 s
    UK003X: 0.000000 s

Reference point on the trajectory:
  Time: 2021-11-11 22:45:21.599869 UTC
  Lon     = +-0.614297 +/- 0.0006 deg
  Lat     = +52.077796 +/- 0.0004 deg
  Lat geo = +51.893707 +/- 0.0004 deg
  Ht      =   91390.13 +/- 86.70 m

  JD dynamic   = 2459530.448967406061 
  LST apparent = 32.0181907850 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  52.15864 +/- 0.2417 deg
  Dec       = +23.23169 +/- 0.3958 deg
  Azimuth   = 144.16454 +/- 0.6229 deg
  Elevation = +57.28662 +/- 0.3064 deg
  Vavg      =  26.22344 +/- 0.0902 km/s
  Vinit     =  26.89500 +/- 0.1114 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  52.78844 +/- 0.2417 deg
  Dec       = +23.14666 +/- 0.3958 deg
  Azimuth   = 143.24687 +/- 0.6229 deg
  Elevation = +56.97941 +/- 0.3064 deg
  Vavg      =  26.31678 +/- 0.0902 km/s
  Vinit     =  26.98833 +/- 0.1114 km/s
Radiant (geocentric, J2000):
  R.A.   =  52.50516 +/- 0.2440 deg
  Dec    = +21.71867 +/- 0.4259 deg
  Vg     =  24.49220 +/- 0.1223 km/s
  Vinf   =  26.89500 +/- 0.1114 km/s
  Zc     =  32.56430 +/- 0.3055 deg
  Zg     =  34.12922 +/- 0.3324 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  55.52209 +/- 0.3008 deg
  Bg     =  +2.65609 +/- 0.3771 deg
  Vh     =  37.01109 +/- 0.0394 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =   1.44146 +/- 0.2592 deg
  Bh     =  +1.75832 +/- 0.2614 deg
  Vh_x   = -36.98195 +/- 0.0475 km/s
  Vh_y   =  -0.93060 +/- 0.1659 km/s
  Vh_z   =  -1.13564 +/- 0.1678 km/s
Orbit:
  La Sun = 229.468102 +/- 0.0000 deg
  a      =   2.099964 +/- 0.0141 AU
  e      =   0.775503 +/- 0.0013
  i      =   2.364995 +/- 0.3630 deg
  peri   = 281.503329 +/- 0.6012 deg
  node   = 229.453808 +/- 0.0016 deg
  Pi     = 150.957136 +/- 0.6024 deg
  q      =   0.471437 +/- 0.0048 AU
  f      = 258.510974 +/- 0.6024 deg
  M      = 345.481789 +/- 0.1502 deg
  Q      =   3.728491 +/- 0.0243 AU
  n      =   0.323882 +/- 0.0034 deg/day
  T      =   3.043115 +/- 0.0306 years
  Last perihelion JD = 2458463.757586 (2018-12-11 06:10:55.439857) +/- 11.1662 days
  Tj     =   3.279671 +/- 0.0136
Shower association:
  IAU No.  =   17
  IAU code =  NTA

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +1.712475e-06, -5.177560e-06, +5.601143e-03, +2.035034e-06, +6.111183e-04, +4.360259e-04
q   , -5.177560e-06, +2.412873e-05, -4.697583e-02, -6.704734e-06, -2.996545e-03, -1.502735e-03
Tp  , +5.601143e-03, -4.697583e-02, +1.248101e+02, +8.614104e-03, +6.071338e+00, +2.080699e+00
node, +2.035034e-06, -6.704734e-06, +8.614104e-03, +2.812132e-06, +8.009128e-04, +6.169626e-04
peri, +6.111183e-04, -2.996545e-03, +6.071338e+00, +8.009128e-04, +3.738306e-01, +1.805716e-01
i   , +4.360259e-04, -1.502735e-03, +2.080699e+00, +6.169626e-04, +1.805716e-01, +1.375224e-01

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.104593
 a2 = 16.528137

Mean time residuals from time vs. length:
  Station with reference time: UK003X
  Avg. res. = 1.253e-05 s
  Stddev    = 3.54e-03 s

Begin point on the trajectory:
  Lon =    -0.614617 +/- 0.0006 deg
  Lat =    52.078069 +/- 0.0004 deg
  Ht  = 91330.95 +/- 64.43 m
End point on the trajectory:
  Lon =    -0.679730 +/- 0.0003 deg
  Lat =    52.131674 +/- 0.0003 deg
  Ht  = 79732.60 +/- 37.71 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
    UK000C,   False,    -0.727590,    51.263100,   57.00,   0.074129,  17.843950,    89437.91,    80596.98,          0.013399,     22.68,     19.50,              71.29, 1.0000,    True,    True, {"ff_name": "FF_UK000C_20211111_224518_890_0520192.fits"}
    UK003X,   False,    -2.362458,    51.684814,  132.00,   0.001687,  24.460947,    91330.95,    79732.60,          0.026272,     66.95,     19.20,              50.84, 1.0000,    True,    True, {"ff_name": "FF_UK003X_20211111_224513_825_0516096.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,     UK000C,       0,  0.072307, 2459530.448167698923, 189.22305,  81.77943,                4.36567,  43.58744,         4.37755,       43.58406,    189.22305,     +81.77943,     189.17459,      +81.77337,  3376926.72,  2110763.20,  5079342.69,      52.086806,       -0.625233,   89437.91,  128673.77,       0.00,             2320.33,   -35.99,      0.00,           28673.63,     13.54,     15.75,          33.29,  +3.80,  +3.25
  1,     UK000C,       0,  0.112563, 2459530.448168164585, 190.90044,  81.44375,                4.19470,  43.19109,         4.16329,       43.20003,    190.90044,     +81.44375,     191.02918,      +81.45928,  3376381.21,  2110060.97,  5078960.99,      52.090565,       -0.629809,   88623.79,  128391.76,     967.68,             3288.01,  -150.99,  24038.24,           28673.63,    -35.91,    -41.78,          88.50,  +3.74,  +3.20
  2,     UK000C,       0,  0.152895, 2459530.448168631643, 193.22208,  80.99418,                3.90964,  42.65812,         3.87404,       42.66823,    193.22208,     +80.99418,     193.36633,      +81.01103,  3375630.72,  2109094.88,  5078435.86,      52.095737,       -0.636045,   87503.84,  128015.04,    2298.96,             4619.29,    95.56,  33008.06,           28673.63,    -40.87,    -47.55,         101.03,  +2.36,  +1.82
  3,     UK000C,       0,  0.193151, 2459530.448169097304, 195.15990,  80.62679,                3.63295,  42.22337,         3.63470,       42.22287,    195.15990,     +80.62679,     195.15381,      +80.62600,  3375006.25,  2108291.03,  5077998.92,      52.100042,       -0.641265,   86572.00,  127711.26,    3406.69,             5727.02,   120.60,  27517.04,           28673.63,      2.02,      2.35,           5.00,  +2.27,  +1.74
  4,     UK000C,       0,  0.233391, 2459530.448169563431, 196.71305,  80.28120,                3.40348,  41.82752,         3.42178,       41.82234,    196.71305,     +80.28120,     196.64211,      +80.27314,  3374447.68,  2107571.99,  5077608.08,      52.103893,       -0.645954,   85738.51,  127447.07,    4397.53,             6717.86,    29.19,  24623.23,           27893.47,     21.16,     24.60,          52.52,  +2.02,  +1.49
  5,     UK000C,       0,  0.273667, 2459530.448170029558, 198.03671,  79.89494,                3.21402,  41.40205,         3.20327,       41.40509,    198.03671,     +79.89494,     198.07951,      +79.89953,  3373868.81,  2106826.83,  5077203.04,      52.107886,       -0.650809,   84874.76,  127180.91,    5424.38,             7744.71,   -27.19,  25495.31,           27327.80,    -12.47,    -14.51,          31.03,  +1.93,  +1.41
  6,     UK000C,       0,  0.313927, 2459530.448170495220, 199.48731,  79.50633,                2.97326,  40.97144,         2.97882,       40.96987,    199.48731,     +79.50633,     199.46756,      +79.50404,  3373268.14,  2106053.60,  5076782.75,      52.112029,       -0.655842,   83978.52,  126913.00,    6489.90,             8810.23,   -44.46,  26466.03,           27033.43,      6.47,      7.53,          16.13,  +1.71,  +1.19
  7,     UK000C,       0,  0.354203, 2459530.448170961346, 200.73766,  79.10215,                2.76141,  40.53390,         2.75764,       40.53496,    200.73766,     +79.10215,     200.75328,      +79.10366,  3372670.98,  2105284.89,  5076364.91,      52.116150,       -0.660850,   83087.55,  126655.04,    7549.20,             9869.53,   -68.38,  26300.97,           26849.71,     -4.41,     -5.12,          11.01,  +1.48,  +0.97
  8,     UK000C,       0,  0.394483, 2459530.448171427939, 201.98895,  78.68492,                2.53106,  40.08523,         2.53219,       40.08491,    201.98895,     +78.68492,     201.98655,      +78.68448,  3372056.13,  2104493.41,  5075934.69,      52.120393,       -0.666003,   82170.23,  126398.23,    8639.87,            10960.20,   -61.04,  27077.26,           26779.14,      1.32,      1.54,           3.30,  +1.46,  +0.95
  9,     UK000C,       0,  0.434727, 2459530.448171893600, 203.06359,  78.31379,                2.31859,  39.68893,         2.33359,       39.68471,    203.06359,     +78.31379,     203.01157,      +78.30815,  3371511.90,  2103792.85,  5075553.90,      52.124150,       -0.670586,   81358.30,  126178.34,    9605.26,            11925.59,  -178.02,  23988.29,           26591.09,     17.65,     20.52,          44.25,  +1.59,  +1.09
 10,     UK000C,       0,  0.474967, 2459530.448172359262, 203.93981,  77.95333,                2.14210,  39.30967,         2.14842,       39.30789,    203.93981,     +77.95333,     203.91956,      +77.95102,  3371001.59,  2103135.94,  5075196.83,      52.127673,       -0.674895,   80596.98,  125978.54,   10510.49,            12830.82,  -355.04,  22495.78,           26302.52,      7.45,      8.67,          18.72,  +2.17,  +1.67
  0,     UK003X,       0,  0.000000, 2459530.448166665155, 111.03002,  38.78579,               69.33667,  34.68673,        69.33429,       34.68845,    111.03002,     +38.78579,     111.03006,      +38.78840,  3378195.13,  2112395.98,  5080230.20,      52.078069,       -0.614617,   91330.95,  157956.11,       0.00,               70.33,  -341.30,      0.00,           28928.36,     -1.98,     -6.91,           9.38,  +4.25,  +3.26
  1,     UK003X,       0,  0.040352, 2459530.448167132214, 111.57058,  38.75212,               69.02484,  34.35095,        68.99525,       34.37217,    111.57058,     +38.75212,     111.57153,      +38.78447,  3377364.70,  2111326.99,  5079649.15,      52.083789,       -0.621490,   90091.55,  157041.94,    1473.08,             1543.41,    46.52,  36505.87,           28928.36,    -24.42,    -85.27,         116.50,  +2.69,  +1.71
  2,     UK003X,       0,  0.080604, 2459530.448167597875, 111.98310,  38.77810,               68.74057,  34.12979,        68.73842,       34.13133,    111.98310,     +38.77810,     111.98351,      +38.78045,  3376738.88,  2110521.39,  5079211.25,      52.088100,       -0.626714,   89157.57,  156356.50,    2583.22,             2653.54,    74.07,  27579.56,           28928.36,     -1.77,     -6.17,           8.47,  +2.62,  +1.65
  3,     UK003X,       0,  0.120812, 2459530.448168063536, 112.33168,  38.81032,               68.49150,  33.95019,        68.52251,       33.92802,    112.33168,     +38.81032,     112.33105,      +38.77637,  3376214.92,  2109846.91,  5078844.63,      52.091711,       -0.631117,   88375.64,  155784.96,    3512.66,             3582.99,   -77.88,  23115.87,           28928.36,     25.51,     88.74,         122.25,  +2.11,  +1.15
  4,     UK003X,       0,  0.161096, 2459530.448168529663, 112.76487,  38.76946,               68.25427,  33.67303,        68.25453,       33.67284,    112.76487,     +38.76946,     112.76553,      +38.76918,  3375565.38,  2109010.78,  5078390.15,      52.096187,       -0.636537,   87406.34,  155083.46,    4664.87,             4735.20,    -9.11,  28602.11,           28237.36,      0.21,      0.74,           1.02,  +2.08,  +1.13
  5,     UK003X,       0,  0.201360, 2459530.448168995790, 113.17997,  38.76015,               68.00040,  33.42791,        67.99968,       33.42843,    113.17997,     +38.76015,     113.18085,      +38.76094,  3374949.74,  2108218.28,  5077959.38,      52.100432,       -0.641686,   86487.67,  154423.15,    5756.94,             5827.26,     0.06,  27122.73,           27880.66,     -0.59,     -2.05,           2.85,  +2.07,  +1.13
  6,     UK003X,       0,  0.241612, 2459530.448169461451, 113.56169,  38.72161,               67.79337,  33.18257,        67.76542,       33.20241,    113.56169,     +38.72161,     113.56429,      +38.75225,  3374385.75,  2107492.28,  5077564.75,      52.104321,       -0.646418,   85646.09,  153821.83,    6757.39,             6827.71,   -82.07,  24854.64,           27429.14,    -22.69,    -79.16,         110.42,  +1.96,  +1.02
  7,     UK003X,       0,  0.281892, 2459530.448169927578, 114.02777,  38.75130,               67.47321,  32.93548,        67.48394,       32.92787,    114.02777,     +38.75130,     114.02827,      +38.73953,  3373709.11,  2106621.25,  5077091.30,      52.108987,       -0.652065,   84636.48,  153107.79,    7957.68,             8028.00,    34.89,  29798.68,           27438.53,      8.70,     30.27,          42.42,  +1.79,  +0.87
  8,     UK003X,       0,  0.322152, 2459530.448170393705, 114.43725,  38.74190,               67.22317,  32.69480,        67.23665,       32.68527,    114.43725,     +38.74190,     114.43766,      +38.72711,  3373116.92,  2105858.95,  5076676.94,      52.113073,       -0.657031,   83752.91,  152486.79,    9008.14,             9078.47,     2.57,  26092.06,           27353.16,     10.89,     37.90,          53.34,  +2.20,  +1.28
  9,     UK003X,       0,  0.362388, 2459530.448170859367, 114.79570,  38.71071,               67.02424,  32.46880,        67.02002,       32.47178,    114.79570,     +38.71071,     114.79754,      +38.71535,  3372600.04,  2105193.58,  5076315.27,      52.116639,       -0.661388,   82981.70,  151947.50,    9925.03,             9995.36,  -162.69,  22787.79,           27060.86,     -3.40,    -11.83,          16.71,  +1.77,  +0.86
 10,     UK003X,       0,  0.402680, 2459530.448171325959, 115.25541,  38.68902,               66.75311,  32.19186,        66.74498,       32.19759,    115.25541,     +38.68902,     115.25776,      +38.69797,  3371944.23,  2104349.37,  5075856.40,      52.121166,       -0.666874,   82003.29,  151271.00,   11088.36,            11158.69,   -83.01,  28872.51,           26983.80,     -6.53,    -22.74,          32.26,  +1.80,  +0.90
 11,     UK003X,       0,  0.442952, 2459530.448171792086, 115.67660,  38.65711,               66.51496,  31.93030,        66.49355,       31.94534,    115.67660,     +38.65711,     115.68036,      +38.68065,  3371346.79,  2103580.30,  5075438.36,      52.125290,       -0.671889,   81111.98,  150659.12,   12148.16,            12218.49,  -106.33,  26315.93,           26913.65,    -17.11,    -59.62,          84.92,  +1.76,  +0.87
 12,     UK003X,       0,  0.483220, 2459530.448172257748, 116.08821,  38.62793,               66.28034,  31.67642,        66.24906,       31.69837,    116.08821,     +38.62793,     116.09322,      +38.66234,  3370767.44,  2102834.52,  5075032.99,      52.129290,       -0.676759,   80247.70,  150070.32,   13175.85,            13246.18,  -161.65,  25521.31,           26825.35,    -24.92,    -86.85,         124.19,  +2.14,  +1.26
 13,     UK003X,       0,  0.523388, 2459530.448172722943, 116.33240,  38.58636,               66.16172,  31.50930,        66.10228,       31.55095,    116.33240,     +38.58636,     116.34053,      +38.65179,  3370422.20,  2102390.11,  5074791.42,      52.131674,       -0.679730,   79732.60,  149718.03,   13788.27,            13858.59,  -629.55,  15246.32,           26439.88,    -47.21,   -164.76,         236.13,  +4.47,  +3.59

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.