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
2024-04-09 18:41:13 C 11 08 08.95 +73 49 12.4 V M35
2024-04-09 18:47:19 C 11 07 58.76 +73 50 15.9 V M35
2024-04-09 19:18:02 C 11 07 06.54 +73 55 40.6 V M35
2024-04-09 19:24:40 C 11 06 55.25 +73 56 49.2 V M35
2024-04-09 21:08:43 C 11 04 01.313 +74 14 42.54 V J69
2024-04-09 21:15:36 C 11 03 48.874 +74 15 55.08 V J69
2024-04-09 21:22:28 C 11 03 36.434 +74 17 07.22 V J69
2024-04-09 21:29:10 C 11 03 24.223 +74 18 17.60 V J69
2024-04-09 21:35:53 C 11 03 11.957 +74 19 28.20 V J69
2024-04-10 08:37:35 C 10 40 21.295 +76 16 35.69 V T08
2024-04-10 08:55:45 C 10 39 34.013 +76 19 44.15 V T08
2024-04-10 09:14:03 C 10 38 45.970 +76 22 53.11 V T08
2024-04-10 17:43:39 C 10 14 47.68 +77 50 30.6 V C40
2024-04-10 17:45:57 C 10 14 39.89 +77 50 54.7 V C40
2024-04-10 17:50:26 C 10 14 24.56 +77 51 40.2 V C40
2024-04-10 19:40:50 B 10 08 07.908 +78 09 54.68 V L65
2024-04-10 19:42:33 B 10 08 01.711 +78 10 11.96 V L65
2024-04-10 19:44:16 B 10 07 55.478 +78 10 29.17 V L65
2024-04-10 20:18:02 C 10 05 51.782 +78 16 13.33 Z C23
2024-04-10 20:20:19 C 10 05 43.322 +78 16 36.37 Z C23
2024-04-10 20:22:38 C 10 05 34.675 +78 16 59.30 Z C23
2024-04-12 22:00:16 B 04 44 18.80 +79 04 41.8 X G00
2024-04-12 22:02:42 B 04 44 05.00 +79 04 10.5 X G00
2024-04-12 22:05:00 B 04 43 52.07 +79 03 41.2 X G00
2024-04-13 18:40:28 C 03 19 01.56 +73 31 41.7 X G02
2024-04-13 18:45:12 C 03 18 48.13 +73 30 07.9 X G02
2024-04-13 18:49:43 C 03 18 35.50 +73 28 39.2 X G02
2024-08-31 13:07:10 C 01 44 16.248 -08 29 03.40 X F52
2024-08-31 13:24:20 C 01 44 14.886 -08 29 05.23 X F52
2024-08-31 13:41:28 C 01 44 13.529 -08 29 07.02 X F52
2024-09-04 11:26:13 C 01 36 48.168 -08 38 57.30 V G96
2024-09-04 11:33:38 C 01 36 47.516 -08 38 58.02 V G96
2024-09-04 11:41:01 C 01 36 46.868 -08 38 58.67 V G96
2024-09-04 11:48:24 C 01 36 46.274 -08 38 59.60 V G96
2024-09-11 11:36:46 C 01 22 14.001 -08 54 16.09 X F51
2024-09-11 12:12:23 C 01 22 10.675 -08 54 18.76 X F51
2024-09-11 12:36:05 C 01 22 08.460 -08 54 20.55 X F51
2024-09-11 12:53:07 C 01 22 06.862 -08 54 21.84 X F51
2024-09-13 07:16:14 C 01 18 16.722 -08 57 23.18 V G96
2024-09-13 07:23:40 C 01 18 16.024 -08 57 23.65 V G96
2024-09-13 07:31:06 C 01 18 15.325 -08 57 24.30 V G96
2024-09-13 07:38:33 C 01 18 14.598 -08 57 24.77 V G96
2024-09-25 07:22:18 C 00 52 03.695 -09 03 27.25 V G96
2024-09-25 07:29:41 C 00 52 03.068 -09 03 26.71 V G96
2024-09-25 07:37:04 C 00 52 02.341 -09 03 26.93 V G96
2024-09-25 07:44:28 C 00 52 01.715 -09 03 26.75 V G96
2024-10-04 09:25:56 C 00 34 06.404 -08 48 22.56 X F51
2024-10-04 09:43:20 C 00 34 05.053 -08 48 20.77 X F51
2024-10-04 10:00:45 C 00 34 03.682 -08 48 18.83 X F51
2024-10-04 10:18:08 C 00 34 02.311 -08 48 16.94 X F51
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)