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
2021-02-22 11:04:34 C 10 56 02.77 +39 04 20.3 V T05
2021-02-23 11:35:26 C 10 54 06.090 +39 23 11.00 U F51
2021-02-23 11:53:12 C 10 54 04.543 +39 23 24.46 U F51
2021-02-23 12:11:09 C 10 54 03.001 +39 23 38.02 U F51
2021-02-23 12:29:15 C 10 54 01.446 +39 23 51.65 U F51
2021-03-02 06:53:00 C 10 38 57.40 +41 19 41.3 V 703
2021-03-02 07:08:35 C 10 38 55.76 +41 19 51.3 V 703
2021-03-02 07:16:28 C 10 38 54.95 +41 19 56.3 V 703
2021-03-03 14:00:46 C 10 35 37.41 +41 39 24.0 V T05
2021-03-03 14:07:27 C 10 35 36.69 +41 39 27.0 V T05
2021-03-03 14:18:03 C 10 35 35.43 +41 39 33.3 V T05
2021-03-03 14:33:10 C 10 35 33.80 +41 39 41.5 V T05
2021-03-06 05:32:31 C 10 28 29.97 +42 16 21.0 V 703
2021-03-06 05:40:21 C 10 28 28.93 +42 16 25.9 V 703
2021-03-06 05:56:07 C 10 28 27.09 +42 16 33.9 V 703
2021-03-07 20:35:52 C 10 23 51.70 +42 36 28.4 V 130
2021-03-07 20:41:35 C 10 23 50.95 +42 36 31.0 V 130
2021-03-07 20:47:19 C 10 23 50.24 +42 36 34.0 V 130
2021-03-15 09:05:41 C 10 00 32.89 +43 39 25.9 V T05
2021-03-15 09:53:09 C 10 00 26.07 +43 39 35.3 V T05
2021-03-15 09:57:46 C 10 00 25.50 +43 39 35.5 V T05
2021-03-15 10:09:09 C 10 00 23.76 +43 39 37.4 V T05
2021-03-17 05:47:25 C 09 54 27.90 +43 46 05.2 V 703
2021-03-17 05:55:46 C 09 54 26.75 +43 46 05.5 V 703
2021-03-17 06:04:30 C 09 54 25.48 +43 46 06.9 V 703
2021-03-17 06:12:52 C 09 54 24.29 +43 46 07.5 V 703
2021-03-20 05:39:50 C 09 44 35.10 +43 48 48.6 V 703
2021-03-20 05:47:45 C 09 44 34.02 +43 48 50.1 V 703
2021-03-20 05:55:39 C 09 44 32.76 +43 48 50.4 V 703
2021-03-22 03:04:51 C 09 38 21.60 +43 45 14.3 V G96
2021-03-22 03:07:40 C 09 38 21.22 +43 45 14.1 V G96
2021-03-22 03:13:35 C 09 38 20.37 +43 45 13.5 V G96
2021-03-22 03:16:23 C 09 38 19.96 +43 45 13.2 V G96
2021-03-22 03:24:19 C 09 38 18.83 +43 45 12.3 V G96
2021-03-22 03:27:08 C 09 38 18.43 +43 45 12.3 V G96
2021-03-22 03:33:02 C 09 38 17.57 +43 45 11.6 V G96
2021-03-22 03:35:51 C 09 38 17.17 +43 45 11.3 V G96
2021-03-29 19:21:06 C 09 13 42.60 +42 48 48.7 V 130
2021-03-29 19:27:32 C 09 13 41.75 +42 48 45.1 V 130
2021-03-29 19:34:20 C 09 13 40.83 +42 48 41.9 V 130
2021-03-29 21:28:41 C 09 13 25.41 +42 47 44.1 V K87
2021-03-29 21:35:01 C 09 13 24.55 +42 47 40.8 V K87
2021-03-29 21:41:21 C 09 13 23.71 +42 47 37.6 V K87
2021-03-30 22:03:12 C 09 10 16.70 +42 35 04.2 V K87
2021-03-30 22:09:33 C 09 10 15.83 +42 35 00.9 V K87
2021-03-30 22:15:53 C 09 10 14.97 +42 34 57.3 V K87
2021-03-31 06:09:31 C 09 09 16.195 +42 30 52.27 U F52
2021-03-31 06:26:13 C 09 09 13.938 +42 30 43.16 U F52
2021-03-31 06:42:57 C 09 09 11.676 +42 30 34.04 U F52
2021-03-31 07:05:14 C 09 09 07.46 +42 30 13.2 V 703
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)