Input measurement type: Azimuth +east of due north for meas1, Elevation angle above the horizon for meas2 Uncertainties type: Uncertainties computed using MC runs with lower cost function value than the purely geometric solution Reference JD: 2458400.527777777985 Time: 2018-10-09 00:40:00.000018 UTC Plane intersections ------------------- Intersection 1 - Stations: 1 and 2 Convergence angle = 42.84104 deg R.A. = 266.97007 Dec = +55.82197 deg Best intersection: Stations 1 and 2 with Qconv = 42.84 deg Least squares solution ---------------------- State vector (ECI, epoch of date): X = 2747370.66 +/- 3.64 m Y = -3769614.24 +/- 9.15 m Z = 4476457.42 +/- 20.65 m Vx = -613.72 +/- 19.79 m/s Vy = -11771.86 +/- 147.17 m/s Vz = 16635.20 +/- 282.28 m/s State vector covariance matrix (X, Y, Z, Vx, Vy, Vz): +2.248389e+01, +2.674726e+01, -9.212591e+01, +2.151077e+02, +3.369187e+02, -8.780161e+02 +2.674726e+01, +9.891295e+01, -1.893527e+02, +1.519378e+02, -3.767046e+02, +2.038293e+02 -9.212591e+01, -1.893527e+02, +5.655010e+02, -7.387329e+02, -5.951869e+02, +2.596850e+03 +2.151077e+02, +1.519378e+02, -7.387329e+02, +2.475040e+03, +5.451023e+03, -1.209507e+04 +3.369187e+02, -3.767046e+02, -5.951869e+02, +5.451023e+03, +2.753996e+04, -4.769016e+04 -8.780161e+02, +2.038293e+02, +2.596850e+03, -1.209507e+04, -4.769016e+04, +8.959513e+04 Timing offsets (from input data): 1: 0.000000 s 2: 0.000507 s Reference point on the trajectory: Time: 2018-10-09 00:40:00.000018 UTC Lon = -81.504235 +/- 0.0001 deg Lat = +44.010592 +/- 0.0001 deg Lat geo = +43.821196 +/- 0.0001 deg Ht = 97215.55 +/- 17.66 m JD dynamic = 2458400.528578518890 LST apparent = 306.0853181056 deg Radiant (apparent in ECI which includes Earth's rotation, epoch of date): R.A. = 267.01563 +/- 0.1541 deg Dec = +54.67827 +/- 0.1168 deg Azimuth = +307.03485 +/- 0.2294 deg Elevation = +62.83943 +/- 0.0992 deg Vavg = 20.72563 +/- 0.1061 km/s Vinit = 20.38831 +/- 0.3170 km/s Radiant (apparent ground-fixed, epoch of date): R.A. = 268.32276 +/- 0.1541 deg Dec = +55.16583 +/- 0.1168 deg Azimuth = +308.33375 +/- 0.2294 deg Elevation = +63.51658 +/- 0.0992 deg Vavg = 20.60415 +/- 0.1061 km/s Vinit = 20.26684 +/- 0.3170 km/s Radiant (geocentric, J2000): R.A. = 262.71017 +/- 0.1927 deg Dec = +54.92063 +/- 0.1273 deg Vg = 17.09904 +/- 0.3700 km/s Vinf = 20.38831 +/- 0.3170 km/s Zc = 27.27504 +/- 0.1183 deg Zg = 29.71412 +/- 0.1105 deg Radiant (ecliptic geocentric, J2000): Lg = 249.73670 +/- 0.5581 deg Bg = +77.84484 +/- 0.1236 deg Vh = 36.80240 +/- 0.2176 km/s Radiant (ecliptic heliocentric, J2000): Lh = 282.61995 +/- 0.0795 deg Bh = +27.01640 +/- 0.4608 deg Vh_x = -7.16327 +/- 0.0401 km/s Vh_y = 31.99430 +/- 0.0607 km/s Vh_z = -16.71733 +/- 0.3667 km/s Orbit: La Sun = 195.423596 +/- 0.0000 deg a = 2.104619 +/- 0.1022 AU e = 0.526609 +/- 0.0183 i = 27.044206 +/- 0.4625 deg peri = 172.757317 +/- 0.1513 deg node = 195.424898 +/- 0.0000 deg Pi = 8.182215 +/- 0.1513 deg q = 0.996308 +/- 0.0001 AU f = 7.240211 +/- 0.1513 deg M = 1.912123 +/- 0.1365 deg Q = 3.212930 +/- 0.2044 AU n = 0.322808 +/- 0.0177 deg/day T = 3.053240 +/- 0.2356 years Last perihelion JD = 2458394.605166 (2018-10-03 02:31:26.337197) +/- 0.1395 days Tj = 3.435771 +/- 0.0941 Shower association: IAU No. = 9 IAU code = DRA Orbit covariance matrix: e , q (AU) , Tp (JD) , node (rad) , peri (rad) , i (rad) e , +3.622060e-04, -5.830137e-07, +1.389308e-03, -1.365371e-08, +1.463789e-05, +1.623082e-04 q , -5.830137e-07, +1.899497e-08, +1.420531e-05, +3.301913e-11, +3.346460e-07, -3.716684e-07 Tp , +1.389308e-03, +1.420531e-05, +2.036776e-02, -4.113490e-08, +3.836420e-04, +5.094619e-04 node, -1.365371e-08, +3.301913e-11, -4.113490e-08, +5.527313e-13, -3.093746e-10, -6.528634e-09 peri, +1.463789e-05, +3.346460e-07, +3.836420e-04, -3.093746e-10, +7.723756e-06, +4.121022e-06 i , +1.623082e-04, -3.716684e-07, +5.094619e-04, -6.528634e-09, +4.121022e-06, +7.718280e-05 Jacchia fit on lag = -|a1|*exp(|a2|*t): a1 = 0.000000 a2 = 0.000000 Mean time residuals from time vs. length: Station with reference time: 1 Avg. res. = 6.310e-06 s Stddev = 2.51e-03 s Begin point on the trajectory: Lon = -81.504272 +/- 0.0001 deg Lat = 44.010612 +/- 0.0001 deg Ht = 97222.90 +/- 14.93 m End point on the trajectory: Lon = -81.466163 +/- 0.0002 deg Lat = 43.988857 +/- 0.0002 deg Ht = 89293.62 +/- 29.97 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 1, False, -80.772100, 43.264200, 330.00, 0.000000, 0.000000, 97318.64, 89040.45, 0.002613, 5.88, 2.13, 20.52, 1.0000, None, None 2, False, -81.315700, 43.192800, 320.00, 0.000000, 0.000000, 97080.25, 93535.24, 0.000760, 1.03, 1.42, 27.64, 1.0000, None, None 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, 1, 0, 0.000000, 2458400.527777777985, 144.79100, 47.09600, 324.79100, 42.90400, 324.79161, 42.90418, 228.26965, +64.47486, 228.26982, +64.47534, 2747338.55, -3769656.88, 4476589.69, 44.011340, -81.504862, 97318.64, 141253.01, 0.00, 1.39, -1.09, 0.00, 21674.58, 0.41, -1.12, 1.74, None, None 1, 1, 0, 0.031000, 2458400.527778137010, 144.82400, 47.17500, 324.82400, 42.82500, 324.82780, 42.82610, 228.07835, +64.48054, 228.07949, +64.48351, 2747364.00, -3769328.98, 4476110.60, 44.009825, -81.502367, 96805.96, 140712.53, 581.11, 579.72, -87.13, 18745.54, 21674.58, 2.52, -6.92, 10.79, None, None 2, 1, 0, 0.062000, 2458400.527778495569, 144.87500, 47.27100, 324.87500, 42.72900, 324.87414, 42.72875, 227.84148, +64.49498, 227.84152, +64.49431, 2747395.58, -3768922.01, 4475515.99, 44.007945, -81.499238, 96169.66, 140041.04, 1302.35, 1300.96, -30.26, 23265.90, 21674.58, -0.57, 1.55, 2.43, None, None 3, 1, 0, 0.093000, 2458400.527778854594, 144.92000, 47.36600, 324.92000, 42.63400, 324.91904, 42.63372, 227.60900, +64.50510, 227.60915, +64.50435, 2747426.09, -3768528.75, 4474941.41, 44.006127, -81.496218, 95554.82, 139392.75, 1999.29, 1997.90, 2.31, 22481.85, 21674.58, -0.63, 1.74, 2.74, None, None 4, 1, 0, 0.124000, 2458400.527779213153, 144.95800, 47.45400, 324.95800, 42.54600, 324.95962, 42.54647, 227.39498, +64.51160, 227.39589, +64.51287, 2747453.81, -3768171.55, 4474419.53, 44.004476, -81.493487, 94996.36, 138804.70, 2632.31, 2630.92, -29.04, 20420.08, 21557.45, 1.06, -2.92, 4.61, None, None 5, 1, 0, 0.155000, 2458400.527779572178, 145.02000, 47.57400, 325.02000, 42.42600, 325.01788, 42.42539, 227.09874, +64.52739, 227.09889, +64.52572, 2747492.09, -3767678.30, 4473698.86, 44.002195, -81.489666, 94225.21, 137991.56, 3506.46, 3505.06, 180.73, 28198.10, 22472.65, -1.38, 3.81, 6.06, None, None 6, 1, 0, 0.186000, 2458400.527779930737, 145.05700, 47.66700, 325.05700, 42.33300, 325.06027, 42.33394, 226.87354, +64.53142, 226.87506, +64.53399, 2747520.56, -3767311.42, 4473162.82, 44.000499, -81.486857, 93651.62, 137388.31, 4156.65, 4155.26, 166.55, 20973.94, 22638.93, 2.12, -5.84, 9.34, None, None 7, 1, 0, 0.217000, 2458400.527780289762, 145.09100, 47.75300, 325.09100, 42.24700, 325.09892, 42.24927, 226.66530, +64.53475, 226.66797, +64.54099, 2747546.64, -3766975.24, 4472671.65, 43.998944, -81.484293, 93126.04, 136836.27, 4752.42, 4751.03, 97.95, 19218.60, 22423.19, 5.12, -14.12, 22.64, None, None 8, 1, 0, 0.248000, 2458400.527780648321, 145.14900, 47.85700, 325.14900, 42.14300, 325.14874, 42.14293, 226.40612, +64.55061, 226.40710, +64.55040, 2747579.24, -3766555.14, 4472057.85, 43.997000, -81.481057, 92469.26, 136145.77, 5496.94, 5495.55, 178.09, 24016.57, 22428.73, -0.17, 0.46, 0.74, None, None 9, 1, 0, 0.435000, 2458400.527782812715, 145.40700, 48.43300, 325.40700, 41.56700, 325.41036, 41.56796, 224.99465, +64.58717, 224.99705, +64.58985, 2747749.44, -3764361.87, 4468853.35, 43.986844, -81.464257, 89040.45, 132553.10, 9383.87, 9382.48, 57.36, 20785.72, 21837.56, 2.11, -5.85, 9.67, None, None 0, 2, 0, 0.010725, 2458400.527777904179, 170.58200, 44.22700, 350.58200, 45.77300, 350.58203, 45.77302, 240.53976, +82.80781, 240.54002, +82.80783, 2747350.38, -3769504.41, 4476366.92, 44.010635, -81.503687, 97080.25, 134085.59, 0.00, 268.82, 36.49, 0.00, 20425.69, 0.06, -0.04, 0.11, None, None 1, 2, 0, 0.041725, 2458400.527778262738, 170.70900, 44.33200, 350.70900, 45.66800, 350.70911, 45.66807, 239.94663, +82.92383, 239.94751, +82.92388, 2747380.69, -3769113.82, 4475796.23, 44.008831, -81.500689, 96469.56, 133476.53, 692.22, 961.04, 64.33, 22329.62, 20425.69, 0.19, -0.14, 0.37, None, None 2, 2, 0, 0.072725, 2458400.527778621763, 170.83100, 44.43100, 350.83100, 45.56900, 350.82932, 45.56796, 239.37492, +83.03428, 239.36419, +83.03345, 2747409.30, -3768745.11, 4475257.54, 44.007127, -81.497867, 95893.10, 132902.39, 1345.63, 1614.45, 53.38, 21077.89, 20425.69, -2.95, 2.14, 5.66, None, None 3, 2, 0, 0.103725, 2458400.527778980322, 170.92900, 44.51700, 350.92900, 45.48300, 350.92943, 45.48326, 238.85183, +83.12449, 238.85508, +83.12470, 2747433.27, -3768436.34, 4474806.40, 44.005700, -81.495524, 95410.34, 132422.27, 1892.85, 2161.67, -63.78, 17652.14, 20425.69, 0.75, -0.54, 1.44, None, None 4, 2, 0, 0.134725, 2458400.527779339347, 171.06500, 44.63100, 351.06500, 45.36900, 351.06569, 45.36943, 238.14868, +83.24756, 238.15385, +83.24791, 2747465.21, -3768024.66, 4474204.91, 44.003797, -81.492356, 94766.71, 131782.54, 2622.42, 2891.24, 1.42, 23534.58, 20791.85, 1.20, -0.87, 2.33, None, None 5, 2, 0, 0.165725, 2458400.527779697906, 171.20500, 44.74900, 351.20500, 45.25100, 351.20606, 45.25166, 237.39470, +83.37368, 237.40255, +83.37423, 2747497.89, -3767603.48, 4473589.54, 44.001849, -81.489112, 94108.22, 131128.93, 3368.85, 3637.67, 83.47, 24078.27, 21365.96, 1.84, -1.33, 3.57, None, None 6, 2, 0, 0.196725, 2458400.527780056931, 171.32800, 44.85200, 351.32800, 45.14800, 351.32802, 45.14801, 236.71607, +83.48363, 236.71701, +83.48364, 2747526.33, -3767236.99, 4473054.07, 44.000154, -81.486306, 93535.24, 130561.10, 4018.35, 4287.17, 68.60, 20951.71, 21526.61, 0.03, -0.02, 0.06, None, None 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.