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
2018-09-02 21:14:41 S 00 00 57.910 -39 35 21.77 V C57
2018-09-02 21:14:41 s 1 -229209.55 6 +166224.60 0.853 C57
2018-09-02 21:44:41 S 00 00 53.902 -39 34 40.26 V C57
2018-09-02 21:44:41 s 1 -229186.78 2 +164388.91 0.767 C57
2018-09-02 23:14:41 S 00 00 42.110 -39 32 42.58 V C57
2018-09-02 23:14:41 s 1 -229052.68 0 +158834.44 0.642 C57
2018-09-03 12:44:41 S 23 58 53.350 -39 14 31.42 V C57
2018-09-03 12:44:41 s 1 -222929.70 6 +105735.73 0.05 C57
2018-09-03 14:44:41 S 23 58 39.451 -39 11 59.03 V C57
2018-09-03 14:44:41 s 1 -221180.99 6 +97415.753 0.863 C57
2018-09-03 19:14:41 S 23 58 04.930 -39 06 07.88 V C57
2018-09-03 19:14:41 s 1 -216335.45 7 +78304.871 0.589 C57
2018-09-03 19:44:41 S 23 58 00.094 -39 05 26.38 V C57
2018-09-03 19:44:41 s 1 -215715.16 6 +76149.632 0.193 C57
2018-09-06 10:47:59 C 23 49 24.52 -37 53 52.4 U T08
2018-09-06 10:50:38 C 23 49 24.14 -37 53 49.0 U T08
2018-09-06 11:04:57 C 23 49 22.13 -37 53 30.4 U T08
2018-09-06 11:11:35 C 23 49 21.16 -37 53 21.5 U T08
2018-09-08 10:41:07 C 23 43 13.63 -36 49 54.5 U T05
2018-09-08 10:44:24 C 23 43 13.20 -36 49 50.6 U T05
2018-09-08 10:56:33 C 23 43 11.58 -36 49 34.1 U T05
2018-09-08 11:02:43 C 23 43 10.79 -36 49 26.3 U T05
2018-09-16 11:08:03 C 23 23 23.29 -32 41 15.6 U T05
2018-09-16 11:10:41 C 23 23 23.04 -32 41 12.2 U T05
2018-09-16 11:25:25 C 23 23 21.67 -32 40 54.0 U T05
2018-09-16 11:36:43 C 23 23 20.71 -32 40 40.5 U T05
2018-09-16 11:54:09 C 23 23 19.16 -32 40 17.8 U T05
2018-10-10 08:19:46 C 22 58 45.722 -22 30 54.56 U F52
2018-10-10 08:36:42 C 22 58 45.476 -22 30 39.62 U F52
2018-10-10 08:53:39 C 22 58 45.222 -22 30 24.42 U F52
2021-01-12 12:12:33 C 11 14 42.608 +28 15 55.10 U F52
2021-01-12 12:28:24 C 11 14 42.918 +28 16 01.50 U F52
2021-01-12 12:44:11 C 11 14 43.268 +28 16 07.94 U F52
2021-01-12 13:00:02 C 11 14 43.558 +28 16 14.45 U F52
2021-01-17 12:16:07 C 11 17 01.94 +29 08 50.1 V G96
2021-01-17 12:23:30 C 11 17 02.01 +29 08 53.6 V G96
2021-01-17 12:30:52 C 11 17 02.05 +29 08 56.9 V G96
2021-01-17 12:38:15 C 11 17 02.15 +29 09 00.3 V G96
2021-02-06 19:30:06 C 11 15 18.69 +34 09 31.4 q D29
2021-02-06 20:10:50 C 11 15 17.49 +34 10 01.4 q D29
2021-02-20 07:06:19 C 10 59 52.90 +38 23 35.0 V 703
2021-02-20 07:14:03 C 10 59 52.23 +38 23 42.8 V 703
2021-02-20 07:21:47 C 10 59 51.63 +38 23 48.3 V 703
2021-02-20 07:29:32 C 10 59 50.99 +38 23 55.5 V 703
2021-02-21 03:05:07 C 10 58 27.75 +38 39 17.6 V W34
2021-02-21 03:18:25 C 10 58 26.72 +38 39 28.5 V W34
2021-02-21 03:31:56 C 10 58 25.70 +38 39 39.1 V W34
2021-02-22 10:15:13 C 10 56 06.87 +39 03 42.7 V T05
2021-02-22 10:19:59 C 10 56 06.46 +39 03 45.2 V T05
2021-02-22 10:24:36 C 10 56 06.11 +39 03 48.0 V T05
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)