Orbital Analysis for matched events on 20210810_010753.808_UK

Summary for Event
-----------------
shower ID 7 PER
Lg 58.05° Bg 35.89° Vg 60.13km/s
mass 0.51106g, abs. mag -3.2
Path Details
------------
start -6.92° 52.85° 107.12km
end   -7.17° 52.75° 84.53km

Orbit Details
-------------
Semimajor axis 9.94A.U., eccentricity 0.90, inclination 117.67°, Period 31.33Y, LA Sun 137.35°, last Perihelion 2021-07-22

Full details below
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Input measurement type: Azimuth +east of due north for meas1, Elevation angle above the horizon for meas2

Uncertainties type:
 Purely geometric uncertainties

Reference JD: 2459436.547150566243
Time: 2021-08-10 01:07:53.808923 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK001L and UK0024
 Convergence angle = 17.83981 deg
 R.A. =  44.14407  Dec = +51.04124 deg
Intersection 2 - Stations: UK001L and UK003H
 Convergence angle = 9.56961 deg
 R.A. =  43.75938  Dec = +51.98899 deg
Intersection 3 - Stations: UK0024 and UK003H
 Convergence angle = 8.27315 deg
 R.A. =  44.02741  Dec = +49.91431 deg

Best intersection: Stations UK001L and UK0024 with Qconv = 17.84 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   3357248.86 +/- 402.60 m
 Y =  -2033493.44 +/- 457.16 m
 Z =   5145707.86 +/- 351.17 m
 Vx =    26109.13 +/- 1358.17 m/s
 Vy =    24082.98 +/- 1582.82 m/s
 Vz =    49775.33 +/- 1803.43 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+1.619967e+05, +1.810280e+05, -1.408800e+05, +4.742108e+05, +5.224341e+05, -4.179968e+05
+1.810280e+05, +2.063486e+05, -1.580240e+05, +5.283175e+05, +6.002350e+05, -4.727371e+05
-1.408800e+05, -1.580240e+05, +1.248234e+05, -4.278422e+05, -4.745329e+05, +3.769559e+05
+4.742108e+05, +5.283175e+05, -4.278422e+05, +1.948790e+06, +2.215291e+06, -1.684099e+06
+5.224341e+05, +6.002350e+05, -4.745329e+05, +2.215291e+06, +2.623164e+06, -1.948246e+06
-4.179968e+05, -4.727371e+05, +3.769559e+05, -1.684099e+06, -1.948246e+06, +1.470505e+06

Timing offsets (from input data):
    UK001L: -0.000019 s
    UK0024: -0.000394 s
    UK003H: 0.000000 s

Reference point on the trajectory:
  Time: 2021-08-10 01:07:53.808923 UTC
  Lon     = +-6.917261 +/- 0.0087 deg
  Lat     = +52.846457 +/- 0.0027 deg
  Lat geo = +52.664110 +/- 0.0027 deg
  Ht      =  107175.97 +/- 215.71 m

  JD dynamic   = 2459436.547951307148 
  LST apparent = 328.7966130535 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  42.68835 +/- 0.4526 deg
  Dec       = +54.48803 +/- 2.2151 deg
  Azimuth   =  56.94592 +/- 2.5307 deg
  Elevation = +48.25416 +/- 1.3839 deg
  Vavg      =  59.05192 +/- 0.4678 km/s
  Vinit     =  61.14949 +/- 0.3884 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  42.81546 +/- 0.4526 deg
  Dec       = +54.27878 +/- 2.2151 deg
  Azimuth   =  57.16433 +/- 2.5307 deg
  Elevation = +48.08668 +/- 1.3839 deg
  Vavg      =  59.21211 +/- 0.4678 km/s
  Vinit     =  61.30968 +/- 0.3884 km/s
Radiant (geocentric, J2000):
  R.A.   =  42.84662 +/- 0.4402 deg
  Dec    = +54.22022 +/- 2.2306 deg
  Vg     =  60.13388 +/- 0.3948 km/s
  Vinf   =  61.14949 +/- 0.3884 km/s
  Zc     =  41.84553 +/- 1.3770 deg
  Zg     =  42.21239 +/- 1.3854 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  58.05497 +/- 0.7199 deg
  Bg     = +35.88705 +/- 2.1649 deg
  Vh     =  40.75473 +/- 0.6165 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  72.71734 +/- 2.3903 deg
  Bh     = +59.87742 +/- 3.0858 deg
  Vh_x   =  -6.07625 +/- 1.3678 km/s
  Vh_y   = -19.52940 +/- 0.9878 km/s
  Vh_z   = -35.25095 +/- 1.7255 km/s
Orbit:
  La Sun = 137.354374 +/- nan deg
  a      =   9.938724 +/- 1.9243 AU
  e      =   0.902966 +/- 0.0535
  i      = 117.667004 +/- 3.4164 deg
  peri   = 153.817257 +/- 0.6755 deg
  node   = 137.353370 +/- 0.0003 deg
  Pi     = 291.170626 +/- 0.6756 deg
  q      =   0.964398 +/- 0.0023 AU
  f      =  26.178633 +/- 0.6754 deg
  M      =   0.593222 +/- 0.7501 deg
  Q      =  18.913050 +/- 3.8495 AU
  n      =   0.031456 +/- 0.0355 deg/day
  T      =  31.332610 +/- 7.4154 years
  Last perihelion JD = 2459417.689371 (2021-07-22 04:32:41.670376) +/- 0.6575 days
  Tj     =  -0.027836 +/- 0.2391
Shower association:
  IAU No.  =    7
  IAU code =  PER

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +2.970924e-03, -4.897346e-05, +2.700446e-02, +2.922233e-07, +2.374366e-04, -3.244669e-03
q   , -4.897346e-05, +5.793801e-06, +5.219121e-04, -3.960073e-09, +2.079004e-05, +4.478090e-05
Tp  , +2.700446e-02, +5.219121e-04, +4.340287e-01, +2.839348e-06, +6.965296e-03, -3.131067e-02
node, +2.922233e-07, -3.960073e-09, +2.839348e-06, +2.947198e-11, +2.786397e-08, -3.258693e-07
peri, +2.374366e-04, +2.079004e-05, +6.965296e-03, +2.786397e-08, +1.416186e-04, -3.044604e-04
i   , -3.244669e-03, +4.478090e-05, -3.131067e-02, -3.258693e-07, -3.044604e-04, +3.607396e-03

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 9.530574
 a2 = 7.731284

Mean time residuals from time vs. length:
  Station with reference time: UK003H
  Avg. res. = 8.018e-06 s
  Stddev    = 2.83e-03 s

Begin point on the trajectory:
  Lon =    -6.917922 +/- 0.0087 deg
  Lat =    52.846196 +/- 0.0027 deg
  Ht  = 107115.42 +/- 217.56 m
End point on the trajectory:
  Lon =    -7.167300 +/- 0.0101 deg
  Lat =    52.748313 +/- 0.0020 deg
  Ht  = 84530.40 +/- 128.80 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, 154.369937,   0.000000,   102670.69,    84530.40,          0.024831,     25.13,    179.78,             106.52, 0.9192,    True,    True, {"ff_name": "FF_UK001L_20210810_010746_890_0416512.fits"}
    UK0024,   False,    -2.949770,    50.877440,   82.00,   0.000000,   0.000000,   103780.54,    89615.22,          0.016387,     41.53,     97.02,              92.32, 0.9984,    True,   False, {"ff_name": "FF_UK0024_20210810_010750_672_0429824.fits"}
    UK003H,   False,    -2.379250,    51.361350,  169.00,   0.004397,  27.922376,   107115.42,    88097.20,          0.011629,     20.14,     72.96,              98.69, 0.9772,    True,    True, {"ff_name": "FF_UK003H_20210810_010748_025_0430080.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,  0.110286, 2459436.547151862178, 238.44289,  20.55514,              287.48097,  12.48416,       287.46474,       12.49317,    238.44289,     +20.55514,     238.46210,      +20.55217,  3354669.97, -2035872.21,  5140791.36,      52.827048,       -6.966945,  102670.69,  415614.76,       0.00,             6039.97,  -254.65,      0.00,           61657.47,   -130.98,    -18.31,          65.64,  +1.74,  -1.35
  1,     UK001L,       0,  0.150450, 2459436.547152326908, 238.42120,  20.20880,              287.27436,  12.20198,       287.29024,       12.19317,    238.42120,     +20.20880,     238.40260,      +20.21169,  3353569.86, -2036886.94,  5138694.08,      52.818754,       -6.988114,  100749.57,  416245.38,    2576.53,             8616.50,  -134.13,  64150.18,           61657.47,    128.43,     17.91,          64.26,  +1.08,  -2.02
  2,     UK001L,       0,  0.190614, 2459436.547152792104, 238.38056,  19.89242,              287.10166,  11.93174,       287.12958,       11.91627,    238.38056,     +19.89242,     238.34795,      +19.89751,  3352551.92, -2037825.89,  5136753.44,      52.811072,       -7.007719,   98972.31,  416843.13,    4960.63,            11000.59,  -206.04,  59359.06,           61657.47,    226.21,     31.51,         113.02,  +0.44,  -2.66
  3,     UK001L,       0,  0.230834, 2459436.547153257299, 238.26165,  19.57311,              286.98622,  11.61281,       286.96178,       11.62636,    238.26165,     +19.57311,     238.29097,      +19.56867,  3351483.28, -2038811.60,  5134716.15,      52.803000,       -7.028297,   97106.94,  417483.91,    7463.46,            13503.43,  -162.64,  62228.60,           61657.47,   -198.54,    -27.77,          99.05,  +0.66,  -2.44
  4,     UK001L,       0,  0.270986, 2459436.547153722029, 238.24192,  19.24407,              286.79077,  11.34463,       286.79708,       11.34113,    238.24192,     +19.24407,     238.23516,      +19.24522,  3350428.99, -2039784.07,  5132706.22,      52.795028,       -7.048604,   95267.03,  418130.01,    9932.68,            15972.65,  -148.69,  61496.78,           61605.95,     51.38,      7.17,          25.59,  +0.12,  -2.99
  5,     UK001L,       0,  0.311170, 2459436.547154187225, 238.15060,  18.96831,              286.68353,  11.07551,       286.65359,       11.09210,    238.15060,     +18.96831,     238.18666,      +18.96289,  3349506.28, -2040635.17,  5130947.14,      52.788044,       -7.066401,   93657.07,  418708.02,   12093.72,            18133.69,  -444.88,  53778.66,           60472.88,   -244.20,    -34.17,         121.47,  -0.02,  -3.13
  6,     UK001L,       0,  0.351394, 2459436.547154652886, 238.08185,  18.55719,              286.47370,  10.71384,       286.44526,       10.72959,    238.08185,     +18.55719,     238.11625,      +18.55205,  3348158.28, -2041878.57,  5128377.27,      52.777830,       -7.092329,   91305.65,  419566.14,   15250.84,            21290.80,   252.56,  78488.39,           62000.76,   -232.63,    -32.55,         115.48,  -0.35,  -3.46
  7,     UK001L,       0,  0.391538, 2459436.547155117616, 238.03739,  18.28931,              286.33713,  10.47822,       286.30978,       10.49336,    238.03739,     +18.28931,     238.07066,      +18.28437,  3347277.61, -2042690.89,  5126698.33,      52.771150,       -7.109330,   89769.74,  420142.43,   17313.43,            23353.39,  -139.64,  51379.77,           61752.89,   -224.16,    -31.36,         111.12,  +0.17,  -2.95
  8,     UK001L,       0,  0.431722, 2459436.547155582346, 237.98889,  17.94392,              286.15486,  10.17945,       286.13609,       10.18984,    237.98889,     +17.94392,     238.01222,      +17.94053,  3346142.40, -2043738.01,  5124534.11,      52.762532,       -7.131201,   87790.35,  420895.99,   19972.19,            26012.16,    61.89,  66164.73,           61931.33,   -154.18,    -21.55,          76.29,  -0.69,  -3.81
  9,     UK001L,       0,  0.471886, 2459436.547156047542, 237.93990,  17.64033,              285.99986,   9.91290,       285.98320,        9.92212,    237.93990,     +17.64033,     237.96091,      +17.63733,  3345138.13, -2044664.34,  5122619.55,      52.754900,       -7.150572,   86039.67,  421576.80,   22324.25,            28364.21,   -42.06,  58561.30,           61838.44,   -137.17,    -19.17,          67.77,  -0.38,  -3.50
 10,     UK001L,       0,  0.512030, 2459436.547156511806, 237.89423,  17.37985,              285.86994,   9.68191,       285.85193,        9.69188,    237.89423,     +17.37985,     237.91697,      +17.37661,  3344272.20, -2045463.07,  5120968.71,      52.748313,       -7.167300,   84530.40,  422175.01,   24352.32,            30392.29,  -468.77,  50520.00,           61273.83,   -148.59,    -20.77,          73.30,  +0.23,  -2.90
  0,     UK0024,       1,  0.034564, 2459436.547150969971, 219.50836,  36.34785,              309.98942,  15.01903,       310.01580,       14.99859,    219.50836,     +36.34785,     219.46751,      +36.34679,  3356201.17, -2034459.83,  5143710.50,      52.838578,       -6.937398,  105345.39,  368931.30,       0.00,             2453.78,   789.57,      0.00,           54457.63,    193.38,     82.66,         117.58,  +3.49,  +0.66
  1,     UK0024,       0,  0.074844, 2459436.547151436564, 219.47587,  36.02000,              309.80768,  14.74097,       309.80387,       14.74392,    219.47587,     +36.02000,     219.48156,      +36.02016,  3355305.39, -2035286.10,  5142002.75,      52.831835,       -6.954662,  103780.54,  368913.94,    2097.99,             4551.77,   424.46,  52085.16,           54457.63,    -27.97,    -11.98,          17.01,  +2.04,  -0.79
  2,     UK0024,       0,  0.115104, 2459436.547151902225, 219.52637,  35.69567,              309.57300,  14.50580,       309.59330,       14.49010,    219.52637,     +35.69567,     219.49544,      +35.69486,  3354413.33, -2036108.93,  5140302.09,      52.825114,       -6.971858,  102222.49,  368908.61,    4187.26,             6641.04,    51.85,  51894.43,           54457.63,    148.89,     63.66,          90.54,  +1.19,  -1.64
  3,     UK0024,       0,  0.155424, 2459436.547152368817, 219.49487,  35.31643,              309.35997,  14.18660,       309.34929,       14.19486,    219.49487,     +35.31643,     219.51129,      +35.31686,  3353376.29, -2037065.49,  5138325.05,      52.817294,       -6.991825,  100411.58,  368915.94,    6616.07,             9069.85,    15.12,  60238.35,           54457.63,    -78.42,    -33.59,          47.70,  +0.94,  -1.89
  4,     UK0024,       0,  0.195728, 2459436.547152835410, 219.49221,  34.95183,              309.13722,  13.89293,       309.11482,       13.91024,    219.49221,     +34.95183,     219.52644,      +34.95272,  3352377.33, -2037986.93,  5136420.60,      52.809754,       -7.011069,   98667.53,  368938.53,    8955.72,            11409.49,  -109.81,  58050.00,           55669.57,   -164.48,    -70.49,         100.04,  +0.51,  -2.32
  5,     UK0024,       0,  0.236064, 2459436.547153302468, 219.52898,  34.54097,              308.85985,  13.58130,       308.85068,       13.58837,    219.52898,     +34.54097,     219.54330,      +34.54134,  3351248.21, -2039028.42,  5134268.01,      52.801223,       -7.032803,   96696.68,  368980.87,   11600.19,            14053.96,    68.14,  65561.02,           57430.43,    -67.35,    -28.84,          40.95,  +0.42,  -2.42
  6,     UK0024,       0,  0.276360, 2459436.547153768595, 219.54237,  34.18079,              308.62995,  13.29871,       308.61997,       13.30641,    219.54237,     +34.18079,     219.55802,      +34.18119,  3350259.78, -2039940.15,  5132383.63,      52.793747,       -7.051853,   94971.77,  369034.65,   13915.17,            16368.94,   -80.96,  57449.41,           58060.93,    -73.35,    -31.41,          44.60,  +0.19,  -2.65
  7,     UK0024,       0,  0.316656, 2459436.547154235188, 219.56566,  33.81332,              308.38928,  13.01501,       308.38500,       13.01831,    219.56566,     +33.81332,     219.57291,      +33.81349,  3349250.26, -2040871.33,  5130459.05,      52.786105,       -7.071310,   93210.42,  369104.46,   16279.54,            18733.32,  -180.67,  58675.11,           58374.76,    -31.48,    -13.48,          19.14,  +0.20,  -2.64
  8,     UK0024,       0,  0.356964, 2459436.547154701781, 219.60854,  33.43498,              308.12891,  12.73218,       308.14334,       12.72107,    219.60854,     +33.43498,     219.58809,      +33.43442,  3348208.98, -2041831.80,  5128473.92,      52.778215,       -7.091378,   91394.05,  369192.11,   18718.29,            21172.07,  -206.73,  60502.88,           58663.10,    106.21,     45.42,          64.54,  -0.27,  -3.11
  9,     UK0024,       0,  0.397272, 2459436.547155168373, 219.58557,  33.06285,              307.91812,  12.42150,       307.90727,       12.42984,    219.58557,     +33.06285,     219.60285,      +33.06327,  3347189.01, -2042772.62,  5126529.41,      52.770478,       -7.111042,   89615.22,  369293.83,   21107.14,            23560.92,  -282.70,  59264.88,           58842.72,    -79.89,    -34.21,          48.54,  -0.14,  -2.98
  0,     UK003H,       0,  0.000000, 2459436.547150566243, 229.21754,  30.24405,              299.76296,  15.18029,       299.75962,       15.18255,    229.21754,     +30.24405,     229.22162,      +30.24379,  3357214.22, -2033525.40,  5145641.80,      52.846196,       -6.917922,  107115.42,  370723.64,       0.00,               81.15,   530.49,      0.00,           57708.41,    -24.56,     -6.79,          14.18,  +2.78,  -0.07
  1,     UK003H,       0,  0.040260, 2459436.547151031904, 229.19074,  29.92731,              299.57601,  14.91900,       299.57053,       14.92271,    229.19074,     +29.92731,     229.19788,      +29.92688,  3356335.31, -2034336.10,  5143966.22,      52.839587,       -6.934861,  105579.73,  370921.44,    2058.47,             2139.62,   127.08,  51129.44,           57708.41,    -40.36,    -11.16,          23.29,  +1.54,  -1.31
  2,     UK003H,       0,  0.080548, 2459436.547151498497, 229.18970,  29.56691,              299.34334,  14.63744,       299.35697,       14.62822,    229.18970,     +29.56691,     229.17110,      +29.56797,  3355338.43, -2035255.62,  5142065.75,      52.832083,       -6.954054,  103838.27,  371158.25,    4393.22,             4474.36,    -1.76,  57951.42,           57708.41,    100.48,     27.75,          57.93,  +0.71,  -2.14
  3,     UK003H,       0,  0.120876, 2459436.547151965089, 229.14206,  29.17213,              299.12188,  14.30339,       299.12215,       14.30321,    229.14206,     +29.17213,     229.14173,      +29.17215,  3354237.30, -2036271.30,  5139966.51,      52.823787,       -6.975241,  101915.08,  371435.77,    6972.15,             7053.30,   111.14,  63949.01,           57708.41,      1.99,      0.55,           1.15,  +0.52,  -2.33
  4,     UK003H,       0,  0.161184, 2459436.547152431682, 229.11885,  28.79639,              298.89634,  13.99718,       298.90002,       13.99470,    229.11885,     +28.79639,     229.11411,      +28.79668,  3353191.33, -2037236.10,  5137972.43,      52.815899,       -6.995380,  100088.64,  371716.34,    9421.90,             9503.05,    96.07,  60775.69,           58954.66,     27.21,      7.52,          15.66,  +0.29,  -2.56
  5,     UK003H,       0,  0.201488, 2459436.547152898274, 229.09285,  28.42015,              298.67318,  13.68875,       298.67809,       13.68544,    229.09285,     +28.42015,     229.08663,      +28.42053,  3352141.85, -2038204.13,  5135971.68,      52.807976,       -7.015589,   98256.48,  372013.90,   11879.85,            11960.99,    89.45,  60985.15,           59600.68,     36.37,     10.05,          20.92,  +0.32,  -2.53
  6,     UK003H,       0,  0.241784, 2459436.547153364401, 229.06371,  28.05751,              298.46165,  13.38895,       298.46458,       13.38698,    229.06371,     +28.05751,     229.06033,      +28.05773,  3351128.07, -2039139.24,  5134038.97,      52.800315,       -7.035120,   96487.01,  372316.92,   14254.19,            14335.34,    -0.29,  58922.63,           59758.71,     21.73,      6.00,          12.49,  +0.15,  -2.70
  7,     UK003H,       0,  0.282056, 2459436.547153830528, 229.05631,  27.71689,              298.24937,  13.11810,       298.26518,       13.10744,    229.05631,     +27.71689,     229.03591,      +27.71811,  3350177.68, -2040015.88,  5132227.12,      52.793126,       -7.053444,   94828.51,  372615.22,   16480.08,            16561.22,  -237.02,  55271.26,           59450.89,    117.41,     32.41,          67.42,  +0.04,  -2.82
  8,     UK003H,       0,  0.322400, 2459436.547154297587, 229.00928,  27.29882,              298.01660,  12.76445,       298.01984,       12.76227,    229.00928,     +27.29882,     229.00585,      +27.29907,  3349002.38, -2041099.98,  5129986.48,      52.784227,       -7.076070,   92778.00,  372999.88,   19232.73,            19313.88,    48.62,  68229.51,           59893.13,     24.10,      6.66,          13.82,  +0.12,  -2.74
  9,     UK003H,       0,  0.362668, 2459436.547154763713, 228.99957,  26.96040,              297.80854,  12.49356,       297.82263,       12.48408,    228.99957,     +26.96040,     228.98191,      +26.96148,  3348054.17, -2041974.60,  5128178.78,      52.777041,       -7.094359,   91124.03,  373326.73,   21453.50,            21534.65,  -192.97,  55149.89,           59859.71,    104.94,     28.97,          60.15,  -0.12,  -2.98
 10,     UK003H,       0,  0.402960, 2459436.547155229840, 228.96281,  26.60104,              297.60713,  12.19107,       297.61281,       12.18724,    228.96281,     +26.60104,     228.95650,      +26.60148,  3347040.99, -2042909.16,  5126247.21,      52.769355,       -7.113894,   89357.10,  373689.63,   23826.45,            23907.60,  -283.86,  58893.70,           59797.59,     42.39,     11.71,          24.27,  +0.06,  -2.80
 11,     UK003H,       0,  0.443164, 2459436.547155695502, 228.96341,  26.34344,              297.44373,  11.98901,       297.46351,       11.97570,    228.96341,     +26.34344,     228.93864,      +26.34495,  3346318.44, -2043575.63,  5124869.72,      52.763869,       -7.127876,   88097.20,  373960.35,   25518.71,            25599.86, -1050.06,  42091.83,           59082.54,    147.77,     40.77,          84.55,  +1.15,  -1.71

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.