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
2024-03-23 11:28:21 S 12 42 58.766 +42 48 09.47 V C57
2024-03-23 11:38:48 C 12 40 34.942 +43 00 28.33 V T08
2024-03-23 11:42:52 C 12 40 34.774 +43 00 35.86 V T08
2024-03-23 11:48:21 S 12 42 57.998 +42 48 48.82 V C57
2024-03-23 11:50:27 C 12 40 34.421 +43 00 49.28 V T08
2024-03-23 12:08:21 S 12 42 57.192 +42 49 27.26 V C57
2024-03-23 12:28:21 S 12 42 56.182 +42 50 07.55 V C57
2024-03-23 12:48:21 S 12 42 55.339 +42 50 48.01 V C57
2024-03-23 13:08:21 S 12 42 54.454 +42 51 24.95 V C57
2024-03-23 13:28:21 S 12 42 53.657 +42 52 03.94 V C57
2024-03-23 13:48:21 S 12 42 52.603 +42 52 44.26 V C57
2024-03-23 14:08:21 S 12 42 51.787 +42 53 25.08 V C57
2024-03-23 14:28:21 S 12 42 50.839 +42 54 03.96 V C57
2024-03-23 14:48:21 S 12 42 49.968 +42 54 42.52 V C57
2024-03-23 15:08:21 S 12 42 49.114 +42 55 23.77 V C57
2024-03-23 15:28:21 S 12 42 48.166 +42 56 04.81 V C57
2024-03-23 15:48:21 S 12 42 47.158 +42 56 42.65 V C57
2024-03-23 16:08:21 S 12 42 46.152 +42 57 26.32 V C57
2024-03-23 16:28:21 S 12 42 45.252 +42 58 04.55 V C57
2024-03-23 16:48:21 S 12 42 44.306 +42 58 43.68 V C57
2024-03-23 17:08:21 S 12 42 43.366 +42 59 24.76 V C57
2024-03-23 17:08:21 s 1 -10297.634 0 +208945.77 7690.0 C57
2024-03-23 17:28:21 S 12 42 42.341 +43 00 03.71 V C57
2024-03-23 17:28:21 s 1 -11381.694 0 +207894.29 0.271 C57
2024-03-23 17:48:21 S 12 42 41.321 +43 00 44.64 V C57
2024-03-23 17:48:21 s 1 -12465.223 0 +206833.13 0.101 C57
2024-03-23 18:08:21 S 12 42 40.262 +43 01 24.64 V C57
2024-03-23 18:08:21 s 1 -13548.158 0 +205762.11 0.131 C57
2024-03-23 18:28:21 S 12 42 39.322 +43 02 05.93 V C57
2024-03-23 18:28:21 s 1 -14630.458 0 +204681.42 0.396 C57
2024-03-23 18:48:21 S 12 42 38.350 +43 02 46.46 V C57
2024-03-23 18:48:21 s 1 -15712.059 0 +203590.95 0.788 C57
2024-03-23 19:28:21 S 12 42 36.278 +43 04 09.01 V C57
2024-03-23 19:28:21 s 1 -17872.922 0 +201380.36 0.586 C57
2024-03-23 19:48:21 S 12 42 35.093 +43 04 49.12 V C57
2024-03-23 19:48:21 s 1 -18952.075 0 +200260.31 0.919 C57
2024-03-23 20:00:42 C 12 40 23.65 +43 15 43.4 V C40
2024-03-23 20:03:42 C 12 40 23.52 +43 15 49.2 V C40
2024-03-23 20:06:32 C 12 40 23.42 +43 15 54.7 V C40
2024-03-23 20:08:21 S 12 42 34.231 +43 05 28.86 V C57
2024-03-23 20:08:21 s 1 -20030.281 0 +199130.23 0.03 C57
2024-03-23 20:15:01 C 12 40 23.09 +43 16 11.1 V C40
2024-03-23 20:26:51 C 12 40 22.63 +43 16 33.9 V C40
2024-03-23 20:28:21 S 12 42 33.034 +43 06 09.79 V C57
2024-03-23 20:28:21 s 1 -21107.499 0 +197990.29 0.96 C57
2024-03-23 20:38:29 C 12 40 22.17 +43 16 56.3 V C40
2024-03-23 20:48:21 S 12 42 32.088 +43 06 50.08 V C57
2024-03-23 20:48:21 s 1 -22183.659 0 +196840.39 0.593 C57
2024-03-23 21:08:21 S 12 42 30.924 +43 07 31.66 V C57
2024-03-23 21:08:21 s 1 -23258.681 0 +195680.36 0.783 C57
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)