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
2024-03-30 06:32:14 C 12 33 31.925 +49 20 47.22 V G96
2024-03-30 10:57:08 C 12 33 11.441 +49 34 22.73 V T05
2024-03-30 11:37:34 C 12 33 07.519 +49 36 24.70 V T05
2024-03-30 11:42:08 C 12 33 07.070 +49 36 38.48 V T05
2024-03-30 12:23:11 C 12 33 03.154 +49 38 41.10 V T05
2024-03-30 20:23:47 B 12 32 33.18 +50 03 17.8 V A92
2024-03-30 20:51:12 B 12 32 30.57 +50 04 46.4 V A92
2024-03-30 21:20:28 B 12 32 27.77 +50 06 20.7 V A92
2024-03-31 08:44:46 C 12 31 30.562 +50 43 38.57 V 703
2024-03-31 08:48:12 C 12 31 30.184 +50 43 49.91 V 703
2024-03-31 08:51:38 C 12 31 29.827 +50 44 01.00 V 703
2024-03-31 08:55:04 C 12 31 29.460 +50 44 12.23 V 703
2024-03-31 19:38:39 C 12 30 39.11 +51 20 29.5 V C40
2024-03-31 19:42:42 C 12 30 38.67 +51 20 43.8 V C40
2024-03-31 19:47:07 C 12 30 38.19 +51 20 59.3 V C40
2024-03-31 19:55:24 C 12 30 37.27 +51 21 28.8 V C40
2024-03-31 19:59:17 C 12 30 36.85 +51 21 42.5 V C40
2024-03-31 20:03:31 C 12 30 36.39 +51 21 57.5 V C40
2024-03-31 20:11:37 C 12 30 35.49 +51 22 26.2 V C40
2024-03-31 20:15:40 C 12 30 35.04 +51 22 40.5 V C40
2024-03-31 20:19:43 C 12 30 34.59 +51 22 54.8 V C40
2024-04-01 10:21:15 C 12 29 13.901 +52 13 51.60 V T08
2024-04-01 10:25:37 C 12 29 13.320 +52 14 07.76 V T08
2024-04-01 10:33:14 C 12 29 12.317 +52 14 35.92 V T08
2024-04-01 11:24:08 C 12 29 05.654 +52 17 42.76 V T08
2024-04-01 20:02:18 C 12 28 12.29 +52 50 01.4 X N42
2024-04-01 20:03:40 C 12 28 12.11 +52 50 06.5 X N42
2024-04-01 20:04:47 C 12 28 11.98 +52 50 10.9 X N42
2024-04-01 22:56:34 C 12 27 52.95 +53 01 15.7 V C40
2024-04-01 23:04:43 C 12 27 51.87 +53 01 46.9 V C40
2024-04-01 23:12:52 C 12 27 50.81 +53 02 18.0 V C40
2024-04-05 23:55:12 C 12 10 28.76 +61 07 51.6 V C40
2024-04-06 00:09:19 C 12 10 24.26 +61 09 19.5 V C40
2024-04-06 00:23:26 C 12 10 19.79 +61 10 47.3 V C40
2024-04-06 00:49:21 C 12 10 11.62 +61 13 28.4 V C40
2024-04-06 01:03:28 C 12 10 07.20 +61 14 56.2 V C40
2024-04-06 01:17:35 C 12 10 02.79 +61 16 24.1 V C40
2024-04-06 02:26:07 C 12 09 58.188 +61 24 31.03 V W16
2024-04-06 02:38:45 C 12 09 53.873 +61 25 55.85 V W16
2024-04-06 02:51:25 C 12 09 49.526 +61 27 20.59 V W16
2024-04-06 03:04:05 C 12 09 45.180 +61 28 45.26 V W16
2024-04-06 03:16:43 C 12 09 40.790 +61 30 09.76 V W16
2024-04-06 10:30:34 C 12 07 14.030 +62 18 55.84 V T08
2024-04-06 10:48:56 C 12 07 06.811 +62 20 59.28 V T08
2024-04-06 10:55:01 C 12 07 04.385 +62 21 39.85 V T08
2024-04-06 11:07:25 C 12 06 59.544 +62 23 03.23 V T08
2024-04-06 18:56:00 C 12 04 22.03 +63 16 39.6 V M31
2024-04-06 19:01:23 C 12 04 19.86 +63 17 18.4 V M31
2024-04-06 19:06:46 C 12 04 17.69 +63 17 57.7 V M31
2024-04-06 21:40:44 C 12 03 10.63 +63 37 01.5 V C40
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)