Orbital Analysis for matched events on 20210816_223107.900_UK

Summary for Event
-----------------
shower ID 7 PER
Lg 66.61° Bg 37.37° Vg 59.08km/s
mass 0.01018g, abs. mag 0.9
Path Details
------------
start 0.06° 51.16° 111.29km
end   -0.12° 51.01° 97.49km

Orbit Details
-------------
Semimajor axis 9.03A.U., eccentricity 0.89, inclination 114.58°, Period 27.14Y, LA Sun 143.97°, last Perihelion 2021-07-26

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: 2459443.438285880722
Time: 2021-08-16 22:31:07.932804 UTC


Plane intersections
-------------------
Intersection 1 - Stations: UK000F and UK002B
 Convergence angle = 0.94616 deg
 R.A. = 117.13250  Dec = +41.97321 deg
Intersection 2 - Stations: UK000F and UK002C
 Convergence angle = 10.86323 deg
 R.A. =  55.45146  Dec = +58.40136 deg
Intersection 3 - Stations: UK002B and UK002C
 Convergence angle = 10.16818 deg
 R.A. =  49.15302  Dec = +57.31788 deg

Best intersection: Stations UK000F and UK002C with Qconv = 10.86 deg


Least squares solution
----------------------
State vector (ECI, epoch of date):
 X =   2244004.38 +/- 223.83 m
 Y =  -3405186.52 +/- 73.79 m
 Z =   5032448.92 +/- 228.02 m
 Vx =    18853.59 +/- 831.14 m/s
 Vy =    25298.99 +/- 482.07 m/s
 Vz =    51171.16 +/- 384.69 m/s

State vector covariance matrix (X, Y, Z, Vx, Vy, Vz):
+6.038193e+04, +1.606827e+04, +5.903654e+04, +1.772281e+05, -3.539814e+04, +3.667683e+04
+1.606827e+04, +6.144470e+03, +1.785514e+04, +3.887515e+04, -6.516814e+03, +6.346363e+03
+5.903654e+04, +1.785514e+04, +6.157053e+04, +1.638447e+05, -3.339072e+04, +3.499452e+04
+1.772281e+05, +3.887515e+04, +1.638447e+05, +6.844675e+05, -1.651885e+05, +1.271567e+05
-3.539814e+04, -6.516814e+03, -3.339072e+04, -1.651885e+05, +5.100165e+04, -2.765681e+04
+3.667683e+04, +6.346363e+03, +3.499452e+04, +1.271567e+05, -2.765681e+04, +4.627936e+04

Timing offsets (from input data):
    UK000F: 0.000999 s
    UK002B: 0.000000 s
    UK002C: 0.000639 s

Reference point on the trajectory:
  Time: 2021-08-16 22:31:07.932804 UTC
  Lon     = ++0.069851 +/- 0.0031 deg
  Lat     = +51.164946 +/- 0.0009 deg
  Lat geo = +50.980084 +/- 0.0009 deg
  Ht      =  112126.45 +/- 220.53 m

  JD dynamic   = 2459443.439087000210 
  LST apparent = 303.3847233039 deg
Radiant (apparent in ECI which includes Earth's rotation, epoch of date):
  R.A.      =  53.30537 +/- 1.4397 deg
  Dec       = +58.34254 +/- 0.1831 deg
  Azimuth   =  36.24577 +/- 0.7685 deg
  Elevation = +33.42951 +/- 0.4206 deg
  Vavg      =  58.51191 +/- 0.6018 km/s
  Vinit     =  60.11642 +/- 0.3347 km/s
Radiant (apparent ground-fixed, epoch of date):
  R.A.      =  53.12299 +/- 1.4397 deg
  Dec       = +58.11615 +/- 0.1831 deg
  Azimuth   =  36.51871 +/- 0.7685 deg
  Elevation = +33.33712 +/- 0.4206 deg
  Vavg      =  58.65920 +/- 0.6018 km/s
  Vinit     =  60.26372 +/- 0.3347 km/s
Radiant (geocentric, J2000):
  R.A.   =  53.58836 +/- 1.4412 deg
  Dec    = +57.89109 +/- 0.1763 deg
  Vg     =  59.08395 +/- 0.3408 km/s
  Vinf   =  60.11642 +/- 0.3347 km/s
  Zc     =  56.71965 +/- 0.4219 deg
  Zg     =  57.25542 +/- 0.4325 deg
Radiant (ecliptic geocentric, J2000):
  Lg     =  66.60818 +/- 0.9628 deg
  Bg     = +37.37362 +/- 0.1412 deg
  Vh     =  40.67098 +/- 0.2336 km/s
Radiant (ecliptic heliocentric, J2000):
  Lh     =  85.16625 +/- 2.3650 deg
  Bh     = +61.86310 +/- 0.3472 deg
  Vh_x   =  -1.61617 +/- 0.7943 km/s
  Vh_y   = -19.11140 +/- 0.1696 km/s
  Vh_z   = -35.86462 +/- 0.2904 km/s
Orbit:
  La Sun = 143.971987 +/- -0.0000 deg
  a      =   9.030738 +/- 0.7838 AU
  e      =   0.894963 +/- 0.0177
  i      = 114.581746 +/- 0.4032 deg
  peri   = 150.027750 +/- 2.7698 deg
  node   = 143.970441 +/- 0.0000 deg
  Pi     = 293.998191 +/- 2.7698 deg
  q      =   0.948561 +/- 0.0126 AU
  f      =  29.968167 +/- 2.7698 deg
  M      =   0.774489 +/- 0.4506 deg
  Q      =  17.112915 +/- 1.5582 AU
  n      =   0.036318 +/- 0.0130 deg/day
  T      =  27.138480 +/- 2.9961 years
  Last perihelion JD = 2459422.113739 (2021-07-26 14:43:47.051988) +/- 1.7594 days
  Tj     =   0.087330 +/- 0.1193
Shower association:
  IAU No.  =    7
  IAU code =  PER

Orbit covariance matrix:
             e     ,     q (AU)   ,      Tp (JD) ,   node (rad) ,   peri (rad) ,    i (rad)
e   , +2.638437e-04, +1.365224e-04, +2.129325e-02, -5.743851e-09, +5.576857e-04, +7.438773e-05
q   , +1.365224e-04, +1.566784e-04, +2.197996e-02, -6.396265e-09, +6.065468e-04, +8.283471e-05
Tp  , +2.129325e-02, +2.197996e-02, +3.121198e+00, -9.037927e-07, +8.563972e-02, +1.170273e-02
node, -5.743851e-09, -6.396265e-09, -9.037927e-07, +3.051550e-13, -2.487362e-08, -3.952236e-09
peri, +5.576857e-04, +6.065468e-04, +8.563972e-02, -2.487362e-08, +2.356291e-03, +3.220890e-04
i   , +7.438773e-05, +8.283471e-05, +1.170273e-02, -3.952236e-09, +3.220890e-04, +5.118853e-05

Jacchia fit on lag = -|a1|*exp(|a2|*t):
 a1 = 0.000300
 a2 = 32.673446

Mean time residuals from time vs. length:
  Station with reference time: UK002B
  Avg. res. = 3.334e-06 s
  Stddev    = 1.83e-03 s

Begin point on the trajectory:
  Lon =     0.059309 +/- 0.0019 deg
  Lat =    51.155903 +/- 0.0002 deg
  Ht  = 111288.84 +/- 126.81 m
End point on the trajectory:
  Lon =    -0.116369 +/- 0.0019 deg
  Lat =    51.006132 +/- 0.0012 deg
  Ht  = 97494.43 +/- 120.38 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
    UK000F,   False,    -1.306160,    51.883100,   80.00,   0.002968,  26.960298,   110562.53,    97494.43,          0.018728,     53.20,      1.52,              73.03, 0.9148,    True,    True, {"ff_name": "FF_UK000F_20210816_223107_284_0221696.fits"}
    UK002B,   False,    -1.367130,    50.815550,   22.00,   0.000000,   0.000000,   110591.80,    97841.63,          0.020290,     51.48,      0.19,              30.09, 0.2514,    True,    True, {"ff_name": "FF_UK002B_20210816_223101_530_0227072.fits"}
    UK002C,   False,    -1.801980,    51.351940,  130.00,   0.000000,   0.000000,   111288.84,    99665.82,          0.009932,     28.33,      4.69,              52.04, 0.6217,    True,    True, {"ff_name": "FF_UK002C_20210816_223108_829_0221184.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,     UK000F,       0,  0.040731, 2459443.438286673743, 338.13884,  12.12583,              130.45720,  40.74520,       130.44931,       40.73443,    338.13884,     +12.12583,     338.14965,      +12.11925,  2243113.84, -3406381.51,  5030031.87,      51.148058,       +0.050018,  110562.53,  167405.53,       0.00,             2839.57,    63.56,      0.00,           58576.30,     -1.04,     35.99,          44.36,  +2.94,  +1.82
  1,     UK000F,       0,  0.081155, 2459443.438287141733, 337.71941,  11.47340,              131.34156,  40.36734,       131.33582,       40.35964,    337.71941,     +11.47340,     337.72737,      +11.46868,  2242375.40, -3407372.40,  5028027.64,      51.134045,       +0.033531,  109266.36,  166683.57,    2354.59,             5194.16,   -12.00,  58247.25,           58576.30,     -0.74,     25.74,          31.86,  +1.74,  +0.63
  2,     UK000F,       0,  0.121587, 2459443.438287609722, 337.29090,  10.81065,              132.23437,  39.97925,       132.22823,       39.97116,    337.29090,     +10.81065,     337.29946,      +10.80568,  2241629.93, -3408372.72,  5026004.34,      51.119892,       +0.016893,  107958.44,  165985.65,    4731.58,             7571.16,   -65.63,  58789.94,           58576.30,     -0.78,     27.09,          33.68,  +1.57,  +0.47
  3,     UK000F,       0,  0.162011, 2459443.438288077712, 336.85351,  10.14919,              133.12813,  39.59090,       133.11498,       39.57387,    336.85351,     +10.14919,     336.87124,      +10.13868,  2240886.76, -3409369.95,  5023987.27,      51.105774,       +0.000308,  106655.15,  165321.10,    7101.25,             9940.83,  -126.11,  58620.42,           58576.30,     -1.66,     57.16,          71.35,  +1.62,  +0.53
  4,     UK000F,       0,  0.202487, 2459443.438288546167, 336.39499,   9.41860,              134.07767,  39.14475,       134.06882,       39.13347,    336.39499,      +9.41860,     336.40717,       +9.41162,  2240083.97, -3410447.19,  5021808.40,      51.090514,       -0.017589,  105247.97,  164639.25,    9661.02,            12500.60,     0.39,  63241.66,           59522.03,     -1.10,     37.91,          47.51,  +1.56,  +0.48
  5,     UK000F,       0,  0.242975, 2459443.438289014623, 335.92971,   8.66601,              135.03715,  38.67555,       135.03542,       38.67339,    335.92971,      +8.66601,     335.93289,       +8.66466,  2239266.57, -3411544.02,  5019589.88,      51.074967,       -0.035805,  103815.89,  163983.42,   12267.36,            15106.93,   172.73,  64373.08,           60486.01,     -0.21,      7.28,           9.16,  +1.43,  +0.36
  6,     UK000F,       0,  0.283427, 2459443.438289482612, 335.51581,   7.97385,              135.89412,  38.23233,       135.90622,       38.24724,    335.51581,      +7.97385,     335.50180,       +7.98316,  2238526.83, -3412536.66,  5017582.12,      51.060889,       -0.052303,  102520.48,  163423.02,   14626.10,            17465.67,    99.64,  58309.53,           60596.79,      1.44,    -50.40,          63.64,  +1.32,  +0.25
  7,     UK000F,       0,  0.323859, 2459443.438289950602, 335.08230,   7.30266,              136.75295,  37.81119,       136.75912,       37.81869,    335.08230,      +7.30266,     335.07596,       +7.30737,  2237798.59, -3413513.86,  5015605.58,      51.047022,       -0.068543,  101245.77,  162902.86,   16948.16,            19787.73,    -8.93,  57431.19,           60379.25,      0.73,    -25.44,          32.22,  +1.39,  +0.33
  8,     UK000F,       0,  0.364343, 2459443.438290419523, 334.63147,   6.55906,              137.66103,  37.32623,       137.67657,       37.34484,    334.63147,      +6.55906,     334.61384,       +6.57079,  2237010.43, -3414571.46,  5013466.42,      51.032005,       -0.086103,   99866.83,  162376.13,   19461.27,            22300.84,    70.43,  62076.71,           60390.99,      1.81,    -63.27,          80.40,  +2.01,  +0.96
  9,     UK000F,       0,  0.404723, 2459443.438290886581, 334.23065,   5.95519,              138.43016,  36.94227,       138.43255,       36.94509,    334.23065,      +5.95519,     334.22940,       +5.95698,  2236357.71, -3415447.32,  5011694.85,      51.019562,       -0.100670,   98725.33,  161967.22,   21542.52,            24382.10,  -275.82,  51541.67,           59915.21,      0.28,     -9.63,          12.27,  +3.84,  +2.79
 10,     UK000F,       0,  0.445179, 2459443.438291355036, 333.85082,   5.26734,              139.21093,  36.46876,       139.24296,       36.50619,    333.85082,      +5.26734,     333.81379,       +5.29114,  2235653.58, -3416392.17,  5009783.74,      51.006132,       -0.116369,   97494.43,  161555.62,   23787.72,            26627.29,  -462.69,  55497.19,           59454.79,      3.62,   -128.05,         163.55,  +4.16,  +3.12
  0,     UK002B,       1,  0.000000, 2459443.438285880722,  11.20272,  45.61716,               68.35940,  45.27528,        68.35233,       45.29373,     11.20272,     +45.61716,      11.18428,      +45.63135,  2244033.34, -3405147.66,  5032527.53,      51.165495,       +0.070628,  112177.33,  156491.41,       0.00,               92.36,  -235.07,      0.00,           62975.94,     -0.21,    -52.20,          68.80,  +4.80,  +3.83
  1,     UK002B,       0,  0.039888, 2459443.438286342192,  10.67163,  45.27367,               69.05779,  45.40106,        69.04818,       45.42699,     10.67163,     +45.27367,      10.64598,      +45.29345,  2243130.51, -3406359.14,  5030077.12,      51.148374,       +0.050506,  110591.80,  153954.40,    2878.77,             2786.42,    61.07,  72171.41,           62975.94,     -0.30,    -71.99,          96.46,  +1.96,  +1.02
  2,     UK002B,       0,  0.079776, 2459443.438286804128,  10.21869,  45.00284,               69.62990,  45.52110,        69.62507,       45.53449,     10.21869,     +45.00284,      10.20564,      +45.01299,  2242406.40, -3407330.80,  5028111.79,      51.134634,       +0.034338,  109320.77,  151927.03,    5187.66,             5095.30,   -27.97,  57884.28,           62975.94,     -0.13,    -36.62,          49.72,  +1.73,  +0.82
  3,     UK002B,       0,  0.119668, 2459443.438287265599,   9.75051,  44.69880,               70.25290,  45.63266,        70.24799,       45.64669,      9.75051,     +44.69880,       9.73701,      +44.70936,  2241648.62, -3408347.63,  5026055.08,      51.120247,       +0.017430,  107991.23,  149814.67,    7603.91,             7511.55,    -9.88,  60569.72,           62975.94,     -0.13,    -37.77,          52.00,  +1.52,  +0.64
  4,     UK002B,       0,  0.159572, 2459443.438287727535,   9.28073,  44.35436,               70.92810,  45.72353,        70.91497,       45.76247,      9.28073,     +44.35436,       9.24281,      +44.38343,  2240863.44, -3409401.24,  5023923.99,      51.105331,       -0.000080,  106614.27,  147636.22,   10107.53,            10015.17,    94.85,  62741.12,           62518.61,     -0.44,   -103.07,         144.00,  +1.37,  +0.52
  5,     UK002B,       0,  0.199436, 2459443.438288189005,   8.79167,  44.07552,               71.53878,  45.86253,        71.53733,       45.86693,      8.79167,     +44.07552,       8.78802,      +44.07879,  2240153.61, -3410353.74,  5021997.42,      51.091838,       -0.015922,  105370.01,  145675.25,   12370.89,            12278.53,   -38.27,  56776.97,           61568.35,     -0.03,    -11.47,          16.24,  +1.37,  +0.55
  6,     UK002B,       0,  0.239332, 2459443.438288650475,   8.28854,  43.69988,               72.27675,  45.95704,        72.26819,       45.98430,      8.28854,     +43.69988,       8.26256,      +43.71993,  2239347.15, -3411435.90,  5019808.58,      51.076500,       -0.033895,  103957.04,  143459.40,   14942.36,            14850.00,   134.79,  64454.33,           61538.15,     -0.25,    -69.87,         100.46,  +1.34,  +0.56
  7,     UK002B,       0,  0.279196, 2459443.438289111946,   7.79821,  43.40022,               72.91978,  46.08635,        72.92013,       46.08517,      7.79821,     +43.40022,       7.80040,      +43.39936,  2238650.58, -3412370.61,  5017917.98,      51.063244,       -0.049438,  102737.13,  141554.25,   17163.45,            17071.09,   -40.60,  55716.76,           61040.78,      0.01,      2.97,           4.33,  +1.18,  +0.43
  8,     UK002B,       0,  0.319064, 2459443.438289573416,   7.28012,  43.04156,               73.65324,  46.20002,        73.65509,       46.19367,      7.28012,     +43.04156,       7.28754,      +43.03695,  2237890.13, -3413391.02,  5015854.04,      51.048765,       -0.066387,  101405.97,  139486.00,   19588.20,            19495.84,   -12.57,  60819.42,           60793.89,      0.03,     15.76,          23.31,  +1.12,  +0.40
  9,     UK002B,       0,  0.358936, 2459443.438290034886,   6.75322,  42.65749,               74.42623,  46.30505,        74.42705,       46.30207,      6.75322,     +42.65749,       6.75751,      +42.65534,  2237117.92, -3414427.22,  5013758.16,      51.034053,       -0.083592,  100054.85,  137398.02,   22050.45,            21958.10,    52.72,  61753.93,           60720.52,      0.02,      7.28,          10.94,  +1.22,  +0.53
 10,     UK002B,       0,  0.398808, 2459443.438290496357,   6.24069,  42.28701,               75.17822,  46.40906,        75.17992,       46.40260,      6.24069,     +42.28701,       6.24853,      +42.28240,  2236389.35, -3415404.87,  5011780.71,      51.020165,       -0.099832,   98780.65,  135439.27,   24373.58,            24281.23,   -21.11,  58264.74,           60568.91,      0.03,     15.52,          23.63,  +1.57,  +0.91
 11,     UK002B,       0,  0.438688, 2459443.438290957827,   5.83622,  42.02100,               75.74278,  46.50608,        75.75036,       46.47626,      5.83622,     +42.02100,       5.86702,      +41.99981,  2235852.24, -3416125.60,  5010322.92,      51.009921,       -0.111845,   97841.63,  134000.77,   26086.21,            25993.85,  -705.93,  42944.46,           59803.62,      0.08,     70.81,         108.99,  +3.35,  +2.71
  0,     UK002C,       0,  0.013851, 2459443.438286259305, 358.96024,  24.88867,               98.79985,  39.31062,        98.80143,       39.31566,    358.96024,     +24.88867,     358.95547,      +24.89153,  2243527.48, -3405826.46,  5031154.55,      51.155903,       +0.059309,  111288.84,  173257.21,       0.00,             1520.64,   360.56,      0.00,           56208.32,     -2.56,    -15.47,          18.66,  +4.44,  +3.25
  1,     UK002C,       0,  0.053979, 2459443.438286723569, 358.57880,  24.37935,               99.57485,  39.17152,        99.57466,       39.17093,    358.57880,     +24.37935,     358.57952,      +24.37902,  2242777.33, -3406833.05,  5029118.55,      51.141673,       +0.042564,  109971.80,  171737.53,    2391.92,             3912.55,   340.13,  59607.18,           56208.32,      0.29,      1.78,           2.16,  +2.81,  +1.64
  2,     UK002C,       0,  0.094099, 2459443.438287188299, 358.28326,  23.95473,              100.20044,  39.03982,       100.20367,       39.04952,    358.28326,     +23.95473,     358.27442,      +23.96022,  2242174.61, -3407641.83,  5027482.68,      51.130234,       +0.029078,  108914.02,  170529.36,    4313.75,             5834.39,  -149.91,  47902.20,           56208.32,     -4.88,    -29.43,          36.09,  +2.01,  +0.85
  3,     UK002C,       0,  0.134255, 2459443.438287653029, 357.87834,  23.38200,              101.04796,  38.86330,       101.05321,       38.87856,    357.87834,     +23.38200,     357.86441,      +23.39062,  2241370.19, -3408721.25,  5025299.37,      51.114958,       +0.011140,  107502.87,  168940.66,    6878.73,             8399.36,     1.03,  63875.21,           56208.32,     -7.62,    -45.96,          56.89,  +1.97,  +0.83
  4,     UK002C,       0,  0.174395, 2459443.438288117293, 357.47744,  22.83386,              101.86896,  38.69954,       101.87173,       38.70735,    357.47744,     +22.83386,     357.47073,      +22.83826,  2240605.50, -3409747.36,  5023223.90,      51.100428,       -0.005917,  106162.07,  167452.61,    9317.01,            10837.64,    26.24,  60744.45,           57605.97,     -3.87,    -23.34,          29.15,  +2.97,  +1.85
  5,     UK002C,       0,  0.214531, 2459443.438288582023, 357.07085,  22.28332,              102.69526,  38.53444,       102.69324,       38.52894,    357.07085,     +22.28332,     357.07689,      +22.28022,  2239847.69, -3410764.24,  5021167.11,      51.086021,       -0.022819,  104833.94,  166000.19,   11733.35,            13253.99,    29.75,  60203.90,           58376.34,      2.70,     16.36,          20.61,  +2.00,  +0.90
  6,     UK002C,       0,  0.254667, 2459443.438289046753, 356.71032,  21.77348,              103.44452,  38.36908,       103.44145,       38.36095,    356.71032,     +21.77348,     356.71901,      +21.76890,  2239165.63, -3411679.47,  5019315.90,      51.073046,       -0.038045,  103639.08,  164711.54,   13908.17,            15428.80,  -208.27,  54186.13,           58202.51,      3.97,     24.06,          30.54,  +2.06,  +0.98
  7,     UK002C,       0,  0.294831, 2459443.438289511483, 356.25874,  21.13372,              104.38139,  38.15739,       104.37566,       38.14270,    356.25874,     +21.13372,     356.27381,      +21.12546,  2238323.88, -3412808.99,  5017031.28,      51.057025,       -0.056792,  102165.17,  163149.43,   16592.16,            18112.80,    61.21,  66825.90,           58849.21,      7.12,     43.17,          55.31,  +3.35,  +2.29
  8,     UK002C,       0,  0.335023, 2459443.438289976679, 355.83492,  20.48045,              105.30109,  37.91449,       105.30235,       37.91762,    355.83492,     +20.48045,     355.83330,      +20.48221,  2237499.47, -3413915.23,  5014793.74,      51.041324,       -0.075153,  100722.38,  161648.05,   19220.86,            20741.49,   273.71,  65403.40,           59588.57,     -1.51,     -9.15,          11.83,  +3.09,  +2.05
  9,     UK002C,       0,  0.375163, 2459443.438290440943, 355.51807,  19.99560,              105.98341,  37.73289,       105.98884,       37.74606,    355.51807,     +19.99560,     355.50710,      +20.00299,  2236895.52, -3414725.65,  5013154.53,      51.029815,       -0.088646,   99665.82,  160564.29,   21146.61,            22667.25,  -213.61,  47976.01,           59331.41,     -6.34,    -38.31,          49.88,  +2.80,  +1.77

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.