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
2024-03-25 02:28:21 S 12 40 17.770 +44 12 31.72 V C57
2024-03-25 02:28:21 s 1 -102492.56 1 +53498.023 0.079 C57
2024-03-25 02:48:21 S 12 40 15.785 +44 13 19.45 V C57
2024-03-25 02:48:21 s 1 -103046.92 1 +51469.245 0.361 C57
2024-03-25 03:08:21 S 12 40 13.752 +44 14 07.58 V C57
2024-03-25 03:08:21 s 1 -103588.42 8 +49434.021 0.524 C57
2024-03-25 03:28:21 S 12 40 11.921 +44 14 53.45 V C57
2024-03-25 03:28:21 s 1 -104117.16 9 +47392.679 0.792 C57
2024-03-25 03:48:21 S 12 40 09.708 +44 15 42.12 V C57
2024-03-25 03:48:21 s 1 -104632.84 5 +45345.361 0.941 C57
2024-03-25 04:08:21 S 12 40 07.800 +44 16 29.89 V C57
2024-03-25 04:08:21 s 1 -105135.08 8 +43292.197 0.671 C57
2024-03-25 10:02:58 C 12 39 13.169 +44 31 19.65 X F52
2024-03-25 10:15:23 C 12 39 12.512 +44 31 45.78 X F52
2024-03-25 10:40:25 C 12 39 11.185 +44 32 38.27 X F52
2024-03-25 11:19:34 C 12 39 09.105 +44 33 59.52 X F51
2024-03-25 11:33:14 C 12 39 08.381 +44 34 27.73 X F51
2024-03-25 11:47:37 C 12 39 07.614 +44 34 57.33 X F51
2024-03-25 12:00:45 C 12 39 06.924 +44 35 24.18 X F51
2024-03-25 21:53:43 C 12 38 47.13 +44 55 59.6 V C40
2024-03-25 22:00:47 C 12 38 46.77 +44 56 14.6 V C40
2024-03-25 22:07:51 C 12 38 46.42 +44 56 29.7 V C40
2024-03-26 12:14:41 C 12 38 12.758 +45 27 41.18 V T05
2024-03-26 12:19:56 C 12 38 12.458 +45 27 53.21 V T05
2024-03-26 12:27:45 C 12 38 12.002 +45 28 09.88 V T05
2024-03-26 12:43:20 C 12 38 11.110 +45 28 43.64 V T05
2024-03-27 11:01:57 C 12 37 16.245 +46 20 21.43 X F52
2024-03-27 11:16:23 C 12 37 15.286 +46 20 55.53 X F52
2024-03-27 11:30:44 C 12 37 14.334 +46 21 29.61 X F52
2024-03-27 11:45:01 C 12 37 13.381 +46 22 03.27 X F52
2024-03-27 20:01:50 C 12 36 53.20 +46 41 44.9 V C40
2024-03-27 20:07:50 C 12 36 52.82 +46 41 59.8 V C40
2024-03-27 20:13:50 C 12 36 52.46 +46 42 14.8 V C40
2024-03-27 20:19:50 C 12 36 52.07 +46 42 29.7 V C40
2024-03-27 20:25:40 C 12 36 51.71 +46 42 44.2 V C40
2024-03-27 20:31:18 C 12 36 51.34 +46 42 58.4 V C40
2024-03-27 21:31:15 C 12 36 49.313 +46 45 18.07 Z C23
2024-03-27 21:34:30 C 12 36 49.109 +46 45 26.10 Z C23
2024-03-27 21:38:49 C 12 36 48.864 +46 45 37.08 Z C23
2024-03-28 09:55:39 C 12 36 07.513 +47 16 48.04 V 703
2024-03-28 09:59:00 C 12 36 07.304 +47 16 56.28 V 703
2024-03-28 10:02:20 C 12 36 07.085 +47 17 04.70 V 703
2024-03-28 10:05:40 C 12 36 06.836 +47 17 13.02 V 703
2024-03-28 11:30:36 C 12 36 04.032 +47 21 09.79 V T08
2024-03-28 11:34:44 C 12 36 03.720 +47 21 20.38 V T08
2024-03-28 11:43:09 C 12 36 03.096 +47 21 41.54 V T08
2024-03-28 11:59:50 C 12 36 01.853 +47 22 23.88 V T08
2024-03-30 06:09:25 C 12 33 34.009 +49 19 37.56 V G96
2024-03-30 06:17:00 C 12 33 33.318 +49 20 00.78 V G96
2024-03-30 06:24:35 C 12 33 32.627 +49 20 23.93 V G96
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)