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
2024-04-06 21:47:48 C 12 03 07.52 +63 37 52.3 V C40
2024-04-06 21:54:52 C 12 03 04.41 +63 38 43.0 V C40
2024-04-06 22:01:54 C 12 03 01.32 +63 39 33.5 V C40
2024-04-06 22:08:56 C 12 02 58.22 +63 40 24.0 V C40
2024-04-06 22:16:00 C 12 02 55.10 +63 41 14.5 V C40
2024-04-06 22:28:40 C 12 02 49.51 +63 42 45.4 V C40
2024-04-06 22:35:44 C 12 02 46.40 +63 43 36.0 V C40
2024-04-06 22:42:48 C 12 02 43.27 +63 44 26.6 V C40
2024-04-06 22:49:50 C 12 02 40.16 +63 45 17.0 V C40
2024-04-06 22:56:54 C 12 02 37.05 +63 46 07.6 V C40
2024-04-06 23:03:58 C 12 02 33.92 +63 46 58.1 V C40
2024-04-07 18:58:20 C 11 53 24.06 +66 21 42.1 X G02
2024-04-07 19:03:25 C 11 53 21.04 +66 22 24.9 X G02
2024-04-07 19:08:19 C 11 53 18.09 +66 23 06.1 X G02
2024-04-07 19:53:42 B 11 52 52.51 +66 29 37.6 Z D40
2024-04-07 19:57:00 B 11 52 50.45 +66 30 05.5 Z D40
2024-04-07 20:00:10 B 11 52 48.51 +66 30 32.0 Z D40
2024-04-07 20:10:37 B 11 52 42.02 +66 32 00.4 Z D40
2024-04-07 20:21:05 B 11 52 35.47 +66 33 28.7 Z D40
2024-04-07 20:41:10 C 11 52 16.67 +66 36 15.2 V C40
2024-04-07 20:44:53 C 11 52 14.33 +66 36 45.8 V C40
2024-04-07 20:48:37 C 11 52 11.97 +66 37 16.7 V C40
2024-04-07 20:52:21 C 11 52 09.62 +66 37 47.7 V C40
2024-04-07 20:56:04 C 11 52 07.28 +66 38 18.4 V C40
2024-04-07 20:59:46 C 11 52 04.91 +66 38 49.0 V C40
2024-04-07 21:06:51 C 11 52 00.40 +66 39 47.5 V C40
2024-04-07 21:10:35 C 11 51 58.05 +66 40 18.3 V C40
2024-04-07 21:14:18 C 11 51 55.70 +66 40 49.3 V C40
2024-04-07 21:18:02 C 11 51 53.32 +66 41 19.9 V C40
2024-04-07 21:21:46 C 11 51 50.96 +66 41 50.6 V C40
2024-04-07 21:25:29 C 11 51 48.57 +66 42 21.3 V C40
2024-04-07 21:39:15 C 11 51 39.78 +66 44 14.8 V C40
2024-04-07 21:42:08 C 11 51 37.91 +66 44 38.7 V C40
2024-04-07 21:44:55 C 11 51 36.10 +66 45 01.7 V C40
2024-04-07 21:47:44 C 11 51 34.35 +66 45 24.7 V C40
2024-04-07 21:50:30 C 11 51 32.57 +66 45 47.5 V C40
2024-04-07 21:53:17 C 11 51 30.79 +66 46 10.3 V C40
2024-04-08 07:40:52 C 11 45 11.858 +68 10 51.49 V 703
2024-04-08 07:44:25 C 11 45 09.097 +68 11 22.27 V 703
2024-04-08 07:47:57 C 11 45 06.347 +68 11 53.09 V 703
2024-04-08 07:51:30 C 11 45 03.568 +68 12 23.90 V 703
2024-04-08 22:42:05 C 11 32 43.25 +70 28 43.1 V C40
2024-04-08 22:53:16 C 11 32 31.79 +70 30 27.3 V C40
2024-04-08 23:04:28 C 11 32 20.29 +70 32 11.5 V C40
2024-04-08 23:34:44 C 11 31 49.10 +70 36 53.7 V C40
2024-04-08 23:41:49 C 11 31 41.79 +70 37 59.6 V C40
2024-04-08 23:49:22 C 11 31 33.99 +70 39 09.8 V C40
2024-04-09 17:12:03 C 11 10 18.81 +73 33 57.9 X N42
2024-04-09 17:12:26 C 11 10 18.24 +73 34 01.5 X N42
2024-04-09 17:12:48 C 11 10 17.61 +73 34 05.4 X N42
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)