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
2021-09-08 10:35:43 C 00 50 37.44 -20 04 38.0 V T05
2021-09-08 10:40:21 C 00 50 36.88 -20 04 35.4 V T05
2021-09-08 10:47:45 C 00 50 36.01 -20 04 34.4 V T05
2021-09-08 11:19:29 C 00 50 32.17 -20 04 28.8 V T05
2021-09-14 07:27:10 C 00 34 50.47 -19 30 04.2 V G96
2021-09-14 07:41:51 C 00 34 48.84 -19 30 00.4 V G96
2021-09-14 07:49:25 C 00 34 48.01 -19 29 57.7 V G96
2021-09-14 07:57:01 C 00 34 47.14 -19 29 56.0 V G96
2021-09-24 08:09:06 C 00 11 10.01 -18 06 57.2 V G96
2021-09-24 08:16:01 C 00 11 09.39 -18 06 54.6 V G96
2021-09-24 08:22:59 C 00 11 08.75 -18 06 52.3 V G96
2021-09-28 11:07:10 C 00 03 01.971 -17 26 09.39 U F51
2021-09-28 11:22:26 C 00 03 00.743 -17 26 02.76 U F51
2021-09-28 11:37:47 C 00 02 59.503 -17 25 56.14 U F51
2021-09-28 11:53:05 C 00 02 58.288 -17 25 49.56 U F51
2021-10-11 07:53:10 C 23 44 20.206 -15 05 20.52 U F51
2021-10-11 08:08:57 C 23 44 19.451 -15 05 13.02 U F51
2021-10-11 08:24:42 C 23 44 18.713 -15 05 05.56 U F51
2021-10-11 08:40:28 C 23 44 17.972 -15 04 58.05 U F51
2021-10-28 06:25:03 C 23 33 49.048 -11 50 07.52 U F52
2021-10-28 06:40:38 C 23 33 48.861 -11 50 00.22 U F52
2021-10-28 06:56:10 C 23 33 48.690 -11 49 52.85 U F52
2021-10-31 04:43:32 C 23 33 19.30 -11 16 40.3 V G96
2021-10-31 04:51:00 C 23 33 19.30 -11 16 35.2 V G96
2021-10-31 04:58:31 C 23 33 19.17 -11 16 31.9 V G96
2021-10-31 05:05:59 C 23 33 19.14 -11 16 28.1 V G96
2024-02-14 10:58:26 C 12 30 43.635 +27 27 57.86 X F52
2024-02-14 11:14:21 C 12 30 44.131 +27 28 07.36 X F52
2024-02-14 11:30:18 C 12 30 44.622 +27 28 16.91 X F52
2024-02-14 11:46:16 C 12 30 45.112 +27 28 26.40 X F52
2024-02-17 14:27:17 C 12 33 14.662 +28 13 54.48 V T05
2024-02-17 14:31:50 C 12 33 14.671 +28 13 57.65 V T05
2024-02-17 14:46:35 C 12 33 15.113 +28 14 06.32 V T05
2024-02-17 14:58:42 C 12 33 15.422 +28 14 13.81 V T05
2024-02-18 07:54:19 C 12 33 48.773 +28 25 01.09 V G96
2024-02-18 08:01:43 C 12 33 48.978 +28 25 06.02 V G96
2024-02-18 08:09:09 C 12 33 49.172 +28 25 10.96 V G96
2024-02-18 08:16:34 C 12 33 49.378 +28 25 15.78 V G96
2024-02-23 10:05:02 C 12 37 20.336 +29 49 29.42 X F51
2024-02-23 10:06:40 C 12 37 20.365 +29 49 30.64 X F52
2024-02-23 10:17:12 C 12 37 20.596 +29 49 38.64 X F51
2024-02-23 10:20:01 C 12 37 20.663 +29 49 40.92 X F52
2024-02-23 10:41:43 C 12 37 21.126 +29 49 57.39 X F51
2024-02-23 10:46:43 C 12 37 21.227 +29 50 01.12 X F52
2024-02-26 00:11:11 C 12 38 51.32 +30 36 40.5 V C40
2024-02-26 00:37:09 C 12 38 51.79 +30 37 01.1 V C40
2024-02-26 01:02:39 C 12 38 52.29 +30 37 19.8 V C40
2024-02-28 00:51:10 C 12 39 55.43 +31 15 55.7 V C40
2024-02-28 01:11:54 C 12 39 55.77 +31 16 12.8 V C40
2024-02-28 01:32:38 C 12 39 56.09 +31 16 29.3 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)