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
2024-03-06 22:40:37 C 12 42 53.198 +34 09 47.95 Z C23
2024-03-06 22:43:52 C 12 42 53.280 +34 09 51.80 Z C23
2024-03-06 22:47:04 C 12 42 52.709 +34 10 05.93 W M01
2024-03-06 22:47:07 C 12 42 53.263 +34 09 55.40 Z C23
2024-03-06 22:54:41 B 12 42 52.748 +34 10 13.64 W M01
2024-03-06 23:02:30 B 12 42 52.750 +34 10 21.66 W M01
2024-03-06 23:17:34 B 12 42 52.777 +34 10 37.03 W M01
2024-03-06 23:32:40 B 12 42 52.806 +34 10 52.35 W M01
2024-03-06 23:55:18 B 12 42 52.849 +34 11 15.18 W M01
2024-03-07 02:56:44 C 12 42 53.369 +34 14 14.74 W M01
2024-03-07 20:58:38 C 12 43 05.531 +34 32 49.84 W M01
2024-03-08 00:00:19 C 12 43 05.638 +34 36 01.27 W M01
2024-03-08 02:54:24 C 12 43 05.836 +34 38 58.28 W M01
2024-03-08 18:32:41 C 12 43 16.118 +34 55 24.41 W M01
2024-03-08 22:24:44 C 12 43 16.288 +34 59 40.78 W M01
2024-03-09 23:21:52 C 12 43 24.24 +35 26 38.3 V C40
2024-03-09 23:39:14 C 12 43 24.20 +35 26 57.4 V C40
2024-03-09 23:56:21 C 12 43 24.16 +35 27 16.1 V C40
2024-03-12 09:33:59 C 12 43 33.604 +36 33 04.18 V 703
2024-03-12 09:37:51 C 12 43 33.568 +36 33 08.86 V 703
2024-03-12 09:41:32 C 12 43 33.524 +36 33 13.32 V 703
2024-03-12 09:45:06 C 12 43 33.503 +36 33 17.46 V 703
2024-03-14 12:55:39 C 12 43 29.098 +37 35 52.58 V T05
2024-03-14 13:00:21 C 12 43 29.028 +37 35 58.52 V T05
2024-03-14 13:07:47 C 12 43 28.913 +37 36 07.45 V T05
2024-03-14 13:55:12 C 12 43 28.294 +37 37 05.77 V T05
2024-03-15 11:23:28 C 12 43 24.293 +38 04 43.50 V T08
2024-03-15 11:27:59 C 12 43 24.230 +38 04 49.40 V T08
2024-03-15 12:17:46 C 12 43 23.393 +38 05 53.88 V T08
2024-03-15 12:58:38 C 12 43 22.718 +38 06 46.15 V T08
2024-03-17 10:23:20 C 12 43 04.668 +39 08 07.73 V T05
2024-03-17 10:25:56 C 12 43 04.613 +39 08 11.72 V T05
2024-03-17 10:30:30 C 12 43 04.519 +39 08 17.84 V T05
2024-03-17 11:06:44 C 12 43 03.722 +39 09 09.40 V T05
2024-03-18 07:54:20 C 12 42 50.915 +39 38 38.26 V 703
2024-03-18 07:58:21 C 12 42 50.803 +39 38 44.66 V 703
2024-03-18 08:02:18 C 12 42 50.720 +39 38 50.60 V 703
2024-03-18 08:06:11 C 12 42 50.670 +39 38 55.46 V 703
2024-03-18 10:07:32 C 12 42 50.028 +39 41 58.27 V T05
2024-03-18 10:54:19 C 12 42 48.888 +39 43 07.57 V T05
2024-03-18 10:57:04 C 12 42 48.826 +39 43 11.53 V T05
2024-03-18 11:01:47 C 12 42 48.703 +39 43 18.59 V T05
2024-03-18 20:36:52 C 12 42 43.308 +39 56 53.84 Z C23
2024-03-18 20:44:25 C 12 42 43.078 +39 57 07.45 Z C23
2024-03-18 20:49:16 C 12 42 43.027 +39 57 15.19 Z C23
2024-03-18 22:54:48 C 12 42 39.36 +40 00 31.6 V C40
2024-03-18 23:08:57 C 12 42 39.04 +40 00 52.1 V C40
2024-03-18 23:23:04 C 12 42 38.73 +40 01 13.0 V C40
2024-03-19 10:09:49 C 12 42 31.603 +40 17 40.42 V T08
2024-03-19 10:13:15 C 12 42 31.495 +40 17 45.82 V T08
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)