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
2024-02-28 11:39:38 C 12 40 09.470 +31 25 05.05 V T08
2024-02-28 12:17:22 C 12 40 10.008 +31 25 36.66 V T08
2024-02-28 12:58:30 C 12 40 10.514 +31 26 11.22 V T08
2024-02-28 13:04:04 C 12 40 10.591 +31 26 15.36 V T08
2024-02-28 13:48:52 C 12 40 11.215 +31 26 52.02 X F52
2024-02-28 14:04:13 C 12 40 11.430 +31 27 04.74 X F52
2024-02-28 14:19:28 C 12 40 11.639 +31 27 17.42 X F52
2024-02-28 14:34:44 C 12 40 11.851 +31 27 29.85 X F52
2024-02-28 23:27:34 C 12 40 23.23 +31 34 51.8 V C40
2024-02-28 23:37:56 C 12 40 23.38 +31 35 00.8 V C40
2024-02-28 23:48:18 C 12 40 23.55 +31 35 09.4 V C40
2024-02-28 23:58:39 C 12 40 23.71 +31 35 18.2 V C40
2024-02-29 00:09:01 C 12 40 23.83 +31 35 27.0 V C40
2024-02-29 00:19:22 C 12 40 23.99 +31 35 35.5 V C40
2024-02-29 00:46:00 C 12 40 24.39 +31 35 57.8 V C40
2024-02-29 01:06:45 C 12 40 24.68 +31 36 15.4 V C40
2024-02-29 01:17:07 C 12 40 24.78 +31 36 23.4 V C40
2024-02-29 01:27:31 C 12 40 24.94 +31 36 31.9 V C40
2024-02-29 01:37:53 C 12 40 25.15 +31 36 41.0 V C40
2024-02-29 23:39:13 C 12 40 50.69 +31 55 37.3 V C40
2024-02-29 23:59:36 C 12 40 50.97 +31 55 54.9 V C40
2024-03-01 00:19:58 C 12 40 51.22 +31 56 12.3 V C40
2024-03-01 01:07:38 C 12 40 51.87 +31 56 53.0 V C40
2024-03-01 01:21:55 C 12 40 52.09 +31 57 05.3 V C40
2024-03-01 01:35:41 C 12 40 52.26 +31 57 17.2 V C40
2024-03-01 10:42:57 C 12 41 03.410 +32 05 25.26 V T05
2024-03-01 10:47:31 C 12 41 03.504 +32 05 29.72 V T05
2024-03-01 10:52:49 C 12 41 03.554 +32 05 34.26 V T05
2024-03-01 10:56:04 C 12 41 03.588 +32 05 37.32 V T05
2024-03-01 11:31:00 C 12 41 03.950 +32 06 08.35 V T05
2024-03-01 11:33:17 C 12 41 04.003 +32 06 10.51 V T05
2024-03-01 11:37:50 C 12 41 04.027 +32 06 14.80 V T05
2024-03-04 19:01:09 C 12 42 18.487 +33 18 58.20 W M01
2024-03-04 22:15:34 C 12 42 20.388 +33 22 00.66 Z C23
2024-03-04 22:18:47 C 12 42 20.417 +33 22 04.04 Z C23
2024-03-04 22:41:34 C 12 42 20.628 +33 22 26.40 Z C23
2024-03-04 22:55:11 C 12 42 20.240 +33 22 49.77 W M01
2024-03-05 02:41:38 C 12 42 21.579 +33 26 24.30 W M01
2024-03-05 21:17:12 C 12 42 37.169 +33 44 34.57 W M01
2024-03-05 23:25:34 B 12 42 37.694 +33 46 43.57 W M01
2024-03-05 23:33:06 B 12 42 37.725 +33 46 51.07 W M01
2024-03-05 23:40:39 B 12 42 37.751 +33 46 58.40 W M01
2024-03-05 23:48:11 B 12 42 37.778 +33 47 05.89 W M01
2024-03-06 00:10:47 C 12 42 37.868 +33 47 28.37 W M01
2024-03-06 02:57:00 C 12 42 38.603 +33 50 08.46 W M01
2024-03-06 13:39:39 C 12 42 46.138 +34 00 57.92 V T08
2024-03-06 14:05:33 C 12 42 46.222 +34 01 23.30 V T08
2024-03-06 14:32:31 C 12 42 46.286 +34 01 49.15 V T08
2024-03-06 14:54:55 C 12 42 46.402 +34 02 10.79 V T08
2024-03-06 18:37:53 C 12 42 51.683 +34 05 45.71 W M01
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)