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
2024-03-19 10:14:06 C 12 42 29.196 +40 17 36.78 V 703
2024-03-19 10:17:15 C 12 42 31.390 +40 17 51.83 V T08
2024-03-19 10:17:25 C 12 42 29.156 +40 17 41.53 V 703
2024-03-19 10:20:43 C 12 42 29.034 +40 17 46.61 V 703
2024-03-19 10:24:02 C 12 42 28.976 +40 17 51.36 V 703
2024-03-19 10:46:52 C 12 42 30.564 +40 18 37.51 V T08
2024-03-20 07:15:46 C 12 42 12.330 +40 50 08.41 V 703
2024-03-20 07:19:07 C 12 42 12.197 +40 50 13.85 V 703
2024-03-20 07:22:29 C 12 42 12.107 +40 50 19.25 V 703
2024-03-20 07:25:52 C 12 42 12.028 +40 50 24.50 V 703
2024-03-20 10:05:47 C 12 42 09.749 +40 54 44.50 V T05
2024-03-20 10:08:23 C 12 42 09.682 +40 54 48.71 V T05
2024-03-20 10:13:36 C 12 42 09.559 +40 54 57.53 V T05
2024-03-20 10:37:36 C 12 42 08.801 +40 55 35.90 V T05
2024-03-20 15:08:21 S 12 44 05.616 +40 51 57.74 V C57
2024-03-20 15:08:21 s 1 +192280.36 8 +258205.36 2730.0 C57
2024-03-20 16:28:21 S 12 44 05.508 +40 53 58.81 V C57
2024-03-20 16:28:21 s 1 +189737.06 2 +259766.37 1040.0 C57
2024-03-20 16:48:21 S 12 44 05.650 +40 54 29.59 V C57
2024-03-20 16:48:21 s 1 +189093.66 3 +260146.11 9870.0 C57
2024-03-20 17:08:21 S 12 44 05.719 +40 54 58.10 V C57
2024-03-20 17:08:21 s 1 +188447.20 4 +260521.56 7450.0 C57
2024-03-20 17:28:21 S 12 44 05.705 +40 55 28.81 V C57
2024-03-20 17:28:21 s 1 +187797.75 3 +260892.80 4130.0 C57
2024-03-20 17:48:21 S 12 44 05.614 +40 55 57.65 V C57
2024-03-20 17:48:21 s 1 +187145.28 9 +261259.78 9910.0 C57
2024-03-20 18:08:21 S 12 44 05.770 +40 56 28.68 V C57
2024-03-20 18:08:21 s 1 +186489.77 5 +261622.42 4760.0 C57
2024-03-20 18:28:21 S 12 44 05.633 +40 56 58.31 V C57
2024-03-20 18:28:21 s 1 +185831.28 2 +261980.81 9010.0 C57
2024-03-20 18:48:21 S 12 44 05.698 +40 57 27.65 V C57
2024-03-20 18:48:21 s 1 +185169.78 7 +262334.88 2680.0 C57
2024-03-20 19:08:21 S 12 44 05.791 +40 57 59.72 V C57
2024-03-20 19:08:21 s 1 +184505.25 6 +262684.58 5730.0 C57
2024-03-20 19:28:21 S 12 44 05.741 +40 58 30.58 V C57
2024-03-20 19:28:21 s 1 +183837.75 6 +263029.97 8490.0 C57
2024-03-20 19:48:21 S 12 44 05.690 +40 59 00.82 V C57
2024-03-20 19:48:21 s 1 +183167.26 6 +263371.00 980.0 C57
2024-03-20 20:08:21 S 12 44 05.683 +40 59 31.06 V C57
2024-03-20 20:08:21 s 1 +182493.75 2 +263707.61 3170.0 C57
2024-03-20 20:28:21 S 12 44 05.549 +41 00 00.50 V C57
2024-03-20 20:28:21 s 1 +181817.28 2 +264039.87 5390.0 C57
2024-03-20 20:48:21 S 12 44 05.830 +41 00 31.25 V C57
2024-03-20 20:48:21 s 1 +181137.83 4 +264367.72 7660.0 C57
2024-03-20 21:08:21 S 12 44 05.539 +41 01 01.81 V C57
2024-03-20 21:08:21 s 1 +180455.37 4 +264691.10 9940.0 C57
2024-03-20 21:28:21 S 12 44 05.539 +41 01 31.94 V C57
2024-03-20 21:28:21 s 1 +179769.97 0 +265010.08 2580.0 C57
2024-03-20 21:46:35 C 12 41 58.135 +41 13 04.37 Z C23
2024-03-20 21:48:21 S 12 44 05.738 +41 02 04.02 V 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)