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
2021-04-22 19:31:39 C 08 10 32.47 +33 01 49.5 V 160
2021-04-22 19:35:36 C 08 10 32.07 +33 01 43.0 V 160
2021-04-22 19:39:56 C 08 10 31.57 +33 01 35.7 V 160
2021-04-30 03:48:03 C 07 51 49.72 +27 49 22.4 V 703
2021-04-30 03:55:40 C 07 51 48.71 +27 49 07.3 V 703
2021-04-30 04:03:18 C 07 51 47.78 +27 48 53.1 V 703
2021-05-03 06:28:53 C 07 42 48.86 +25 11 27.8 V T08
2021-05-03 06:33:32 C 07 42 48.24 +25 11 17.0 V T08
2021-05-03 06:42:49 C 07 42 46.99 +25 10 55.8 V T08
2021-05-03 06:59:25 C 07 42 44.76 +25 10 17.9 V T08
2021-07-20 14:12:18 C 02 36 33.32 -20 59 07.6 V T08
2021-07-20 14:27:35 C 02 36 32.42 -20 59 07.2 V T08
2021-07-20 14:43:19 C 02 36 31.55 -20 59 04.9 V T08
2021-07-20 14:55:16 C 02 36 30.86 -20 59 04.2 V T08
2021-08-03 13:57:41 C 02 16 54.54 -20 37 40.7 V T05
2021-08-03 14:02:21 C 02 16 54.16 -20 37 40.1 V T05
2021-08-03 14:11:35 C 02 16 53.42 -20 37 39.8 V T05
2021-08-03 14:39:09 C 02 16 51.39 -20 37 39.5 V T05
2021-08-11 14:25:26 C 02 02 07.80 -20 39 18.2 V T05
2021-08-11 14:28:04 C 02 02 07.56 -20 39 18.4 V T05
2021-08-11 14:28:44 C 02 02 07.50 -20 39 18.2 V T05
2021-08-11 14:31:22 C 02 02 07.26 -20 39 18.1 V T05
2021-08-11 14:32:01 C 02 02 07.17 -20 39 19.3 V T05
2021-08-15 12:24:27 C 01 53 45.02 -20 41 26.0 V T05
2021-08-15 13:38:21 C 01 53 37.78 -20 41 29.1 V T05
2021-08-15 13:41:39 C 01 53 37.44 -20 41 29.1 V T05
2021-08-15 13:46:17 C 01 53 36.95 -20 41 29.9 V T05
2021-08-15 13:54:11 C 01 53 36.16 -20 41 29.4 V T05
2021-08-17 12:59:44 C 01 49 06.88 -20 42 24.4 V T08
2021-08-17 13:04:22 C 01 49 06.42 -20 42 24.3 V T08
2021-08-17 13:12:21 C 01 49 05.48 -20 42 25.6 V T08
2021-08-17 14:03:18 C 01 49 00.25 -20 42 25.2 V T08
2021-08-29 12:30:03 C 01 18 17.76 -20 36 51.5 V T08
2021-08-29 12:33:23 C 01 18 17.31 -20 36 50.7 V T08
2021-08-29 12:37:21 C 01 18 16.82 -20 36 50.9 V T08
2021-08-29 12:53:50 C 01 18 14.87 -20 36 50.7 V T08
2021-09-04 12:52:37 C 01 01 30.32 -20 21 07.6 V T05
2021-09-04 12:57:54 C 01 01 29.67 -20 21 06.7 V T05
2021-09-04 13:43:33 C 01 01 24.15 -20 20 59.4 V T05
2021-09-04 14:24:28 C 01 01 19.12 -20 20 52.0 V T05
2021-09-06 11:30:06 C 00 56 04.34 -20 13 34.2 V T08
2021-09-06 11:36:06 C 00 56 03.62 -20 13 33.1 V T08
2021-09-06 12:06:38 C 00 55 59.92 -20 13 27.8 V T08
2021-09-06 12:48:03 C 00 55 54.90 -20 13 20.5 V T08
2021-09-07 07:10:20 C 00 53 47.58 -20 09 59.3 V 703
2021-09-07 07:18:00 C 00 53 46.72 -20 09 59.6 V 703
2021-09-07 07:33:20 C 00 53 44.84 -20 09 56.3 V 703
2021-09-07 12:03:01 C 00 53 13.231 -20 09 04.47 U F51
2021-09-07 12:34:23 C 00 53 09.454 -20 08 58.43 U F51
2021-09-07 12:50:03 C 00 53 07.567 -20 08 55.43 U 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)