Orbital Analysis for matched events on 20211103_041233.487_UK

Back to daily index
Summary for Event
-----------------
shower ID 17 NTA
Lg 47.06° Bg 0.83° Vg 26.88km/s
mass 0.01590g, abs. mag 1.7
best visual mag 2.0
Path Details
------------
start -3.12° 51.38° 89.88km
end   -2.99° 51.40° 83.19km

Orbit Details
-------------
Semimajor axis 2.77A.U., eccentricity 0.84, inclination 0.82°, Period 4.61Y, LA Sun 220.66°, last Perihelion 2017-05-07

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: 2459521.675387592055
Time: 2021-11-03 04:12:33.487954 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001Z and UK003Z
 Convergence angle = 35.63540 deg
 R.A. =  46.14063  Dec = +20.36241 deg

Best intersection: Stations UK001Z and UK003Z with Qconv = 35.64 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   -887073.84 +/- 32.15 m
 Y =   3946759.08 +/- 33.38 m
 Z =   5030311.48 +/- 67.96 m
 Vx =    18963.87 +/- 160.70 m/s
 Vy =    19785.79 +/- 251.60 m/s
 Vz =     9743.94 +/- 271.61 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.091002e+03, +1.970654e+02, +1.437934e+03, +2.008534e+03, -7.263820e+02, +3.367340e+03
+1.970654e+02, +1.103465e+03, -1.058886e+03, -2.127016e+03, +8.265549e+02, -4.608611e+03
+1.437934e+03, -1.058886e+03, +4.221327e+03, +7.049201e+03, -1.269260e+03, +1.485338e+04
+2.008534e+03, -2.127016e+03, +7.049201e+03, +1.760339e+04, +7.886002e+02, +3.191705e+04
-7.263820e+02, +8.265549e+02, -1.269260e+03, +7.886002e+02, +5.508999e+03, +6.679742e+02
+3.367340e+03, -4.608611e+03, +1.485338e+04, +3.191705e+04, +6.679742e+02, +6.596678e+04

Timing offsets (from input data):
    UK001Z: 0.000000 s
    UK003Z: 0.002068 s

Reference point on the trajectory:
  Time: 2021-11-03 04:12:33.487954 UTC
  Lon     = +-3.117733 +/- 0.0005 deg
  Lat     = +51.380033 +/- 0.0006 deg
  Lat geo = +51.194839 +/- 0.0006 deg
  Ht      =   89886.74 +/- 41.29 m

  JD dynamic   = 2459521.676188332960 
  LST apparent = 102.6672982213 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  46.21511 +/- 0.2273 deg
  Dec       = +19.57216 +/- 0.4391 deg
  Azimuth   = 255.86619 +/- 0.5359 deg
  Elevation = +35.92520 +/- 0.2241 deg
  Vavg      =  28.15424 +/- 0.2685 km/s
  Vinit     =  29.08694 +/- 0.1847 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  46.55900 +/- 0.2273 deg
  Dec       = +19.73536 +/- 0.4391 deg
  Azimuth   = 255.68882 +/- 0.5359 deg
  Elevation = +36.25833 +/- 0.2241 deg
  Vavg      =  27.92318 +/- 0.2685 km/s
  Vinit     =  28.85588 +/- 0.1847 km/s
Radiant (geocentric, J2000):
  R.A.   =  44.34711 +/- 0.2179 deg
  Dec    = +17.71947 +/- 0.4749 deg
  Vg     =  26.88035 +/- 0.1998 km/s
  Vinf   =  29.08694 +/- 0.1847 km/s
  Zc     =  54.02978 +/- 0.2226 deg
  Zg     =  56.33295 +/- 0.2622 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  47.05763 +/- 0.1100 deg
  Bg     =  +0.82542 +/- 0.5064 deg
  Vh     =  38.31562 +/- 0.1374 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     = 355.77693 +/- 0.2258 deg
  Bh     =  +0.57924 +/- 0.3583 deg
  Vh_x   = -38.20964 +/- 0.1434 km/s
  Vh_y   =   2.82141 +/- 0.1424 km/s
  Vh_z   =  -0.38735 +/- 0.2420 km/s
Orbit:
  La Sun = 220.661970 +/- 0.0000 deg
  a      =   2.769653 +/- 0.0956 AU
  e      =   0.840882 +/- 0.0057
  i      =   0.821663 +/- 0.5121 deg
  peri   = 282.580566 +/- 0.3908 deg
  node   = 220.601235 +/- 0.2775 deg
  Pi     = 143.181801 +/- 0.2390 deg
  q      =   0.440702 +/- 0.0022 AU
  f      = 257.482040 +/- 0.2390 deg
  M      = 350.879941 +/- 0.4845 deg
  Q      =   5.098605 +/- 0.1924 AU
  n      =   0.213829 +/- 0.0105 deg/day
  T      =   4.609340 +/- 0.2417 years
  Last perihelion JD = 2457880.736760 (2017-05-07 05:40:56.051387) +/- 88.4780 days
  Tj     =   2.668602 +/- 0.0619
Shower association:
  IAU No.  =   17
  IAU code =  NTA

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (deg) ,   peri (deg) ,    i (deg)
e   , +3.060171e-05, -7.825257e-06, -4.642879e-01, +5.503195e-04, -9.391538e-04, +2.499216e-03
q   , -7.825257e-06, +5.343180e-06, +9.651656e-02, -1.344356e-04, -1.975722e-04, -5.720471e-04
Tp  , -4.642879e-01, +9.651656e-02, +7.210705e+03, -8.117718e+00, +1.687866e+01, -3.853195e+01
node, +5.503195e-04, -1.344356e-04, -8.117718e+00, +7.209479e-02, -7.999829e-02, +7.408172e-02
peri, -9.391538e-04, -1.975722e-04, +1.687866e+01, -7.999829e-02, +1.485383e-01, -1.144835e-01
i   , +2.499216e-03, -5.720471e-04, -3.853195e+01, +7.408172e-02, -1.144835e-01, +2.373567e-01

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 4.393315
 a2 = 10.977182

Mean time residuals from time vs. length:
  Station with reference time: UK001Z
  Avg. res. = 1.155e-05 s
  Stddev    = 3.40e-03 s

Begin point on the trajectory:
  Lon =    -3.117660 +/- 0.0004 deg
  Lat =    51.380045 +/- 0.0005 deg
  Ht  = 89882.86 +/- 45.54 m
End point on the trajectory:
  Lon =    -2.992150 +/- 0.0002 deg
  Lat =    51.400009 +/- 0.0003 deg
  Ht  = 83189.13 +/- 22.50 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
    UK001Z,   False,    -2.949729,    50.877448,   82.00,   3.196636,  11.777793,    89882.86,    83189.13,          0.023987,     36.06,     24.86,              60.96, 1.0000,    True,    True, {"ff_name": "FF_UK001Z_20211103_041232_303_0979968.fits"}
    UK003Z,   False,    -1.639327,    51.011519,   64.00,   2.826304,  12.228441,    88126.69,    83537.91,          0.005270,     10.90,      6.49,              27.71, 1.0000,    True,    True, {"ff_name": "FF_UK003Z_20211103_041232_175_0988416.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,     UK001Z,       0,  0.000000, 2459521.675387592055,  59.31882,  80.70537,              348.18914,  57.08901,       348.19254,       57.09340,     59.31882,     +80.70537,      59.34740,      +80.70421,  -887078.16,  3946754.57,  5030309.26,      51.380045,       -3.117660,   89882.86,  106653.75,       0.00,                6.62,     0.26,      0.00,           29609.00,      5.03,      7.30,          17.14,  +3.94,  +3.80
  1,     UK001Z,       0,  0.080620, 2459521.675388525240,  60.83916,  81.78218,              349.99475,  56.60134,       350.03209,       56.64667,     60.83916,     +81.78218,      61.17437,      +81.76869,  -888597.96,  3945168.90,  5029528.36,      51.384128,       -3.092061,   88515.45,  105559.66,    2331.08,             2337.71,   -13.65,  28914.47,           29609.00,     52.04,     75.49,         179.16,  +4.88,  +4.76
  2,     UK001Z,       0,  0.120920, 2459521.675388991367,  62.00351,  82.32267,              350.92564,  56.36929,       350.95794,       56.40737,     62.00351,     +82.32267,      62.30513,      +82.31047,  -889365.06,  3944368.56,  5029134.21,      51.386188,       -3.079133,   87825.46,  105022.42,    3507.67,             3514.29,    -9.27,  29195.54,           29609.00,     43.77,     63.48,         151.44,  +4.07,  +3.96
  3,     UK001Z,       0,  0.161236, 2459521.675389458425,  63.67174,  82.91061,              351.96179,  56.12406,       351.97087,       56.13445,     63.67174,     +82.91061,      63.76118,      +82.90696,  -890205.78,  3943491.40,  5028702.24,      51.388444,       -3.064944,   87069.39,  104445.33,    4797.17,             4803.79,   107.57,  31984.98,           29609.00,     11.95,     17.34,          41.58,  +3.01,  +2.92
  4,     UK001Z,       0,  0.201492, 2459521.675389924087,  65.05787,  83.36274,              352.74096,  55.91865,       352.74035,       55.91796,     65.05787,     +83.36274,      65.05247,      +83.36300,  -890848.67,  3942820.65,  5028371.91,      51.390168,       -3.054130,   86491.32,  104012.67,    5783.24,             5789.86,   -77.29,  24494.95,           29032.43,     -0.79,     -1.15,           2.76,  +2.49,  +2.40
  5,     UK001Z,       0,  0.241840, 2459521.675390391145,  66.89526,  83.94720,              353.70716,  55.62307,       353.71699,       55.63376,     66.89526,     +83.94720,      67.00233,      +83.94277,  -891664.94,  3941969.00,  5027952.50,      51.392356,       -3.040350,   85757.49,  103473.83,    7035.23,             7041.86,     1.11,  31029.90,           29051.19,     12.34,     17.90,          43.33,  +2.03,  +1.96
  6,     UK001Z,       0,  0.282140, 2459521.675390857738,  68.88365,  84.45272,              354.54959,  55.36213,       354.56368,       55.37710,     68.88365,     +84.45272,      69.04567,      +84.44591,  -892376.79,  3941226.30,  5027586.74,      51.394264,       -3.028351,   85117.64,  103013.91,    8127.08,             8133.70,   -79.25,  27092.92,           28882.45,     17.33,     25.14,          61.14,  +2.27,  +2.21
  7,     UK001Z,       0,  0.322452, 2459521.675391324330,  71.52542,  84.97252,              355.43578,  55.09039,       355.44522,       55.10019,     71.52542,     +84.97252,      71.64124,      +84.96757,  -893120.81,  3940450.04,  5027204.45,      51.396256,       -3.015798,   84449.00,  102543.19,    9268.26,             9274.88,  -110.63,  28308.61,           28762.70,     11.37,     16.49,          40.28,  +2.05,  +2.00
  8,     UK001Z,       0,  0.362708, 2459521.675391789991,  73.97382,  85.38271,              356.12890,  54.86168,       356.14061,       54.87362,     73.97382,     +85.38271,      74.12462,      +85.37613,  -893712.31,  3939832.89,  5026900.53,      51.397840,       -3.005850,   83917.47,  102176.42,   10175.52,            10182.14,  -374.29,  22537.29,           28331.55,     13.88,     20.13,          49.36,  +2.53,  +2.48
  9,     UK001Z,       0,  0.403068, 2459521.675392257050,  78.10103,  85.93759,              357.07175,  54.53288,       357.09308,       54.55413,     78.10103,     +85.93759,      78.39369,      +85.92424,  -894523.03,  3938987.04,  5026483.97,      51.400009,       -2.992150,   83189.13,  101684.37,   11418.99,            11425.61,  -304.76,  30809.61,           28223.56,     24.77,     35.92,          88.51,  +3.71,  +3.67
  0,     UK003Z,       1,  0.061406, 2459521.675388278905,  26.11079,  42.21443,              292.72085,  38.23294,       292.71800,       38.20550,     26.11079,     +42.21443,      26.08390,      +42.19562,  -888448.87,  3945324.46,  5029604.97,      51.383728,       -3.094517,   88649.58,  141689.23,       0.00,             2109.03,   316.55,      0.00,           27306.58,    -34.86,    -58.49,          99.12,  +6.74,  +5.98
  1,     UK003Z,       0,  0.101406, 2459521.675388741773,  25.93177,  42.32379,              292.93467,  38.19707,       292.93373,       38.18836,     25.93177,     +42.32379,      25.92358,      +42.31781,  -889030.15,  3944717.99,  5029306.30,      51.385289,       -3.084762,   88126.69,  140913.40,     891.56,             3000.59,    44.63,  22289.03,           27306.58,    -10.99,    -18.46,          31.45,  +4.12,  +3.38
  2,     UK003Z,       1,  0.141350, 2459521.675389204174,  25.76189,  42.51185,              293.22137,  38.21547,       293.21596,       38.16621,     25.76189,     +42.51185,      25.71367,      +42.47795,  -889779.66,  3943935.99,  5028921.18,      51.387300,       -3.072130,   87452.58,  139912.40,    2041.18,             4150.21,    32.40,  28780.73,           27306.58,    -61.82,   -103.69,         177.97,  +3.98,  +3.25
  3,     UK003Z,       0,  0.181366, 2459521.675389667507,  25.48593,  42.64890,              293.51846,  38.14110,       293.51855,       38.14187,     25.48593,     +42.64890,      25.48744,      +42.64943,  -890571.74,  3943109.58,  5028514.20,      51.389425,       -3.058768,   86740.32,  138856.43,    3256.07,             5365.10,    83.35,  30360.11,           27306.58,      0.95,      1.60,           2.77,  +3.01,  +2.30
  4,     UK003Z,       0,  0.221346, 2459521.675390129909,  25.29113,  42.79458,              293.77657,  38.11917,       293.77667,       38.12001,     25.29113,     +42.79458,      25.29287,      +42.79515,  -891239.38,  3942413.00,  5028171.16,      51.391216,       -3.047528,   86140.05,  137969.55,    4280.11,             6389.14,   -55.51,  25613.83,           27322.75,      1.03,      1.73,           3.01,  +3.18,  +2.48
  5,     UK003Z,       0,  0.261326, 2459521.675390592776,  25.10503,  42.93424,              294.02332,  38.09869,       294.02328,       38.09840,     25.10503,     +42.93424,      25.10584,      +42.93405,  -891870.07,  3941754.98,  5027847.10,      51.392906,       -3.036917,   85573.08,  137133.85,    5247.46,             7356.49,  -251.05,  24195.86,           26880.72,     -0.35,     -0.59,           1.03,  +2.15,  +1.46
  6,     UK003Z,       0,  0.301286, 2459521.675391055178,  24.85042,  43.13817,              294.37319,  38.07886,       294.37182,       38.06819,     24.85042,     +43.13817,      24.84109,      +43.13072,  -892746.74,  3940840.31,  5027396.65,      51.395255,       -3.022097,   84785.16,  135971.62,    6592.10,             8701.13,   -68.72,  33649.72,           27447.64,    -13.03,    -21.88,          38.62,  +3.00,  +2.33
  7,     UK003Z,       0,  0.341274, 2459521.675391518045,  24.63857,  43.27956,              294.63561,  38.04509,       294.63545,       38.04385,     24.63857,     +43.27956,      24.63876,      +43.27869,  -893402.09,  3940156.56,  5027059.92,      51.397010,       -3.011058,   84196.23,  135106.99,    7597.28,             9706.31,  -226.67,  25137.08,           27491.33,     -1.50,     -2.52,           4.48,  +2.55,  +1.90
  8,     UK003Z,       0,  0.381250, 2459521.675391980913,  24.40712,  43.44656,              294.93434,  38.01619,       294.93430,       38.01590,     24.40712,     +43.44656,      24.40841,      +43.44635,  -894134.80,  3939392.10,  5026683.45,      51.398971,       -2.998692,   83537.91,  134141.46,    8721.12,            10830.15,  -265.62,  28112.72,           27553.14,     -0.36,     -0.60,           1.08,  +3.15,  +2.51

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.