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
1953-03-08 07:39:59 10 49 41.64 +43 24 33.3 c 261
1953-03-08 08:19:59 10 49 36.55 +43 25 02.7 c 261
2015-02-22 07:07:42 C 08 50 11.773 +43 16 15.90 L F51
2015-02-22 07:23:52 C 08 50 10.118 +43 16 18.02 L F51
2015-02-22 07:56:15 C 08 50 06.768 +43 16 21.83 L F51
2015-02-22 18:40:26 C 08 49 03.43 +43 17 27.6 M 033
2015-02-22 18:43:44 C 08 49 03.10 +43 17 28.0 M 033
2015-02-22 18:47:04 C 08 49 02.78 +43 17 28.3 M 033
2015-02-22 18:50:22 C 08 49 02.45 +43 17 28.8 M 033
2015-02-22 20:02:42 C 08 48 55.14 +43 17 37.2 M 033
2015-02-22 20:09:19 C 08 48 54.48 +43 17 37.6 M 033
2015-02-22 22:36:34 C 08 48 39.63 +43 17 53.3 M 033
2015-02-22 22:39:53 C 08 48 39.26 +43 17 53.6 M 033
2015-02-22 22:43:13 C 08 48 38.90 +43 17 54.0 M 033
2015-02-23 06:22:23 C 08 47 54.509 +43 18 42.31 t 568
2015-02-23 06:24:17 C 08 47 54.313 +43 18 42.58 t 568
2015-02-23 06:26:15 C 08 47 54.120 +43 18 42.76 t 568
2015-02-23 10:06:51 C 08 47 31.692 +43 19 03.65 L F51
2015-02-23 10:41:06 C 08 47 28.213 +43 19 06.15 L F51
2015-02-23 10:58:13 C 08 47 26.470 +43 19 07.44 L F51
2015-02-24 04:37:23 C 08 45 43.34 +43 20 25.4 r H21
2015-02-24 04:55:25 C 08 45 41.61 +43 20 28.0 r H21
2015-02-24 04:57:45 C 08 45 41.38 +43 20 27.8 r H21
2015-02-25 09:02:11 C 08 42 58.03 +43 21 52.3 o 291
2015-02-25 09:05:59 C 08 42 57.61 +43 21 52.1 o 291
2015-02-25 09:09:48 C 08 42 57.26 +43 21 52.5 o 291
2015-03-07 07:10:48 C 08 22 04.10 +42 59 22.1 t 705
2015-03-07 07:12:40 C 08 22 03.93 +42 59 21.9 t 705
2015-03-07 07:14:31 C 08 22 03.79 +42 59 21.6 t 705
2015-03-07 23:28:01 C 08 20 49.39 +42 55 41.6 t 204
2015-03-07 23:58:03 C 08 20 47.07 +42 55 34.5 t 204
2015-03-09 06:49:33 C 08 18 30.26 +42 48 02.8 t 705
2015-03-09 06:51:24 C 08 18 30.12 +42 48 02.3 t 705
2015-03-09 06:53:16 C 08 18 29.99 +42 48 01.8 t 705
2015-03-10 08:04:50 C 08 16 42.76 +42 41 12.7 o 291
2015-03-10 08:10:06 C 08 16 42.38 +42 41 11.1 o 291
2015-03-10 08:15:20 C 08 16 41.98 +42 41 09.6 o 291
2015-03-11 06:04:07 C 08 15 13.23 +42 34 50.2 o 291
2015-03-11 06:09:25 C 08 15 12.82 +42 34 49.0 o 291
2015-03-11 06:14:42 C 08 15 12.40 +42 34 47.8 o 291
2015-03-13 07:45:06 C 08 12 02.22 +42 18 55.3 o 291
2015-03-13 07:50:37 C 08 12 01.88 +42 18 53.0 o 291
2015-03-13 07:56:08 C 08 12 01.57 +42 18 51.3 o 291
2015-03-16 07:33:15 C 08 07 58.977 +41 52 39.94 L F51
2015-03-16 08:06:43 C 08 07 57.096 +41 52 26.46 L F51
2015-03-16 08:23:27 C 08 07 56.163 +41 52 19.84 L F51
2015-03-17 07:00:58 C 08 06 47.763 +41 43 16.55 L F51
2015-03-17 07:17:42 C 08 06 46.876 +41 43 09.79 L F51
2015-03-17 07:56:15 C 08 06 44.838 +41 42 53.71 L F51
2015-03-18 02:50:16 C 08 05 50.65 +41 35 00.3 u H21
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)