517681 (2015 DE198)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5824731052 ± 7.13e-09
Semi-major axis (a)2.0638151766 AU ± 2.40e-09
Inclination (i)12.24158619° ± 2.00e-06
Long. of Asc. Node (Ω)33.20634214° ± 3.19e-06
Arg. of Perihelion (ω)218.16964482° ± 4.33e-06
Mean Anomaly (M)183.48642443° ± 4.92e-07
Mean Motion (n)0.3324344885°/day ± 5.79e-10
Perihelion dist (q)0.86169834 AU ± 1.48e-08
Aphelion dist (Q)3.26593201 AU ± 1.52e-08
Orbital Period2.96487373 yr ± 5.17e-09
Physical Parameters
H (abs. magnitude)18.93
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.295″
Uncertainty0
Orbit TypeApollo
MOID0.042036 AU
Observations Used965
Radar Obs Used4
Oppositions47
Arc Total1953-2024
First Observation Used1953-03-08
Last Observation Used2024-10-07
Observations (1458)
Date Type RA Dec Mag Band Observatory
2018-08-31 16:14:41 S 00 08 42.396 -40 50 28.18 V C57
2018-08-31 16:14:41 s 1 -185171.99 0 +314795.87 4570.0 C57
2018-08-31 16:44:41 S 00 08 39.010 -40 49 49.69 V C57
2018-08-31 16:44:41 s 1 -185912.77 5 +313822.78 5030.0 C57
2018-08-31 19:44:41 S 00 08 10.253 -40 45 21.20 V C57
2018-08-31 19:44:41 s 1 -190257.69 5 +307812.78 6380.0 C57
2018-08-31 23:14:41 S 00 07 37.243 -40 40 16.32 V C57
2018-08-31 23:14:41 s 1 -195103.07 3 +300429.71 2570.0 C57
2018-08-31 23:44:41 S 00 07 33.091 -40 39 34.96 V C57
2018-08-31 23:44:41 s 1 -195774.92 8 +299342.34 8490.0 C57
2018-09-01 00:44:41 S 00 07 23.033 -40 38 05.64 V C57
2018-09-01 00:44:41 s 1 -197103.00 9 +297143.10 9500.0 C57
2018-09-01 01:14:41 S 00 07 19.013 -40 37 23.48 V C57
2018-09-01 01:14:41 s 1 -197759.15 7 +296031.24 4150.0 C57
2018-09-01 03:44:41 S 00 06 56.950 -40 33 52.78 V C57
2018-09-01 03:44:41 s 1 -200959.42 9 +290349.46 170.0 C57
2018-09-01 05:14:41 S 00 06 42.564 -40 31 33.35 V C57
2018-09-01 05:14:41 s 1 -202813.78 0 +286842.43 1880.0 C57
2018-09-01 09:14:41 S 00 06 06.418 -40 25 56.03 V C57
2018-09-01 09:14:41 s 1 -207507.71 2 +277130.98 1620.0 C57
2018-09-01 12:44:41 S 00 05 34.769 -40 20 58.81 V C57
2018-09-01 12:44:41 s 1 -211301.71 2 +268204.54 9720.0 C57
2018-09-01 13:14:41 S 00 05 30.221 -40 20 06.83 V C57
2018-09-01 13:14:41 s 1 -211818.88 1 +266896.64 9210.0 C57
2018-09-01 14:44:41 S 00 05 16.680 -40 17 58.16 V C57
2018-09-01 14:44:41 s 1 -213332.10 0 +262923.90 6460.0 C57
2018-09-01 22:14:41 S 00 04 10.574 -40 07 20.10 V C57
2018-09-01 22:14:41 s 1 -219993.43 6 +241956.44 1850.0 C57
2018-09-01 23:14:41 S 00 04 02.873 -40 05 58.31 V C57
2018-09-01 23:14:41 s 1 -220761.64 1 +239021.78 5750.0 C57
2018-09-02 00:14:41 S 00 03 53.626 -40 04 33.20 V C57
2018-09-02 00:14:41 s 1 -221500.18 7 +236054.43 2230.0 C57
2018-09-02 00:44:41 S 00 03 50.220 -40 03 56.92 V C57
2018-09-02 00:44:41 s 1 -221858.19 0 +234558.50 590.0 C57
2018-09-02 02:14:41 S 00 03 36.960 -40 01 40.76 V C57
2018-09-02 02:14:41 s 1 -222886.39 0 +230021.67 2040.0 C57
2018-09-02 02:44:41 S 00 03 32.681 -40 01 08.33 V C57
2018-09-02 02:44:41 s 1 -223213.64 7 +228493.06 6820.0 C57
2018-09-02 04:14:41 S 00 03 19.627 -39 58 57.11 V C57
2018-09-02 04:14:41 s 1 -224148.10 5 +223858.24 8980.0 C57
2018-09-02 06:44:41 S 00 02 58.334 -39 55 25.07 V C57
2018-09-02 06:44:41 s 1 -225543.89 5 +215970.39 9760.0 C57
2018-09-02 07:44:41 S 00 02 49.882 -39 54 01.80 V C57
2018-09-02 07:44:41 s 1 -226044.06 3 +212758.20 5130.0 C57
2018-09-02 14:14:41 S 00 01 55.308 -39 45 02.02 V C57
2018-09-02 14:14:41 s 1 -228438.31 4 +191086.84 870.0 C57
2018-09-02 17:14:41 S 00 01 31.279 -39 40 57.18 V C57
2018-09-02 17:14:41 s 1 -229011.30 1 +180623.84 0.673 C57
2018-09-02 18:44:41 S 00 01 18.746 -39 38 47.36 V C57
2018-09-02 18:44:41 s 1 -229163.46 9 +175283.97 0.248 C57
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2024-04-12 08:00:00 390922.774 2 Hz 8560 -14 -14
2024-04-13 00:30:00 325842.885 2 Hz 8560 -14 -14
2024-04-13 01:40:00 51160316.43 2 us 8560 -14 -14
2024-04-13 02:30:00 51049208.72 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)