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
2024-03-20 21:48:21 s 1 +179081.60 1 +265324.61 5580.0 C57
2024-03-20 22:08:21 S 12 44 05.621 +41 02 33.14 V C57
2024-03-20 22:08:21 s 1 +178390.23 2 +265634.62 8940.0 C57
2024-03-20 22:11:16 C 12 41 57.545 +41 13 44.98 Z C23
2024-03-20 22:14:31 C 12 41 57.470 +41 13 50.48 Z C23
2024-03-20 22:28:21 S 12 44 05.602 +41 03 05.26 V C57
2024-03-20 22:28:21 s 1 +177695.93 1 +265940.18 2960.0 C57
2024-03-20 22:48:21 S 12 44 05.506 +41 03 33.59 V C57
2024-03-20 22:48:21 s 1 +176998.67 8 +266241.25 7680.0 C57
2024-03-20 23:08:21 S 12 44 05.477 +41 04 03.68 V C57
2024-03-20 23:08:21 s 1 +176298.43 8 +266537.74 3090.0 C57
2024-03-20 23:28:21 S 12 44 05.558 +41 04 35.94 V C57
2024-03-20 23:28:21 s 1 +175595.28 0 +266829.74 9500.0 C57
2024-03-20 23:48:21 S 12 44 05.525 +41 05 06.76 V C57
2024-03-20 23:48:21 s 1 +174889.18 2 +267117.19 6930.0 C57
2024-03-21 00:08:21 S 12 44 05.537 +41 05 39.77 V C57
2024-03-21 00:08:21 s 1 +174180.10 9 +267400.02 5390.0 C57
2024-03-21 00:28:21 S 12 44 05.402 +41 06 10.19 V C57
2024-03-21 00:28:21 s 1 +173468.13 1 +267678.32 5190.0 C57
2024-03-21 00:48:21 S 12 44 05.345 +41 06 40.97 V C57
2024-03-21 00:48:21 s 1 +172753.22 7 +267952.01 6350.0 C57
2024-03-21 01:08:21 S 12 44 05.335 +41 07 09.88 V C57
2024-03-21 01:08:21 s 1 +172035.36 2 +268221.03 8880.0 C57
2024-03-21 01:28:21 S 12 44 05.268 +41 07 41.30 V C57
2024-03-21 01:28:21 s 1 +171314.60 4 +268485.46 3080.0 C57
2024-03-21 01:48:21 S 12 44 05.023 +41 08 14.14 V C57
2024-03-21 01:48:21 s 1 +170590.93 4 +268745.25 8990.0 C57
2024-03-21 02:08:21 S 12 44 05.074 +41 08 44.95 V C57
2024-03-21 02:08:21 s 1 +169864.31 6 +269000.31 6620.0 C57
2024-03-21 02:28:21 S 12 44 05.189 +41 09 17.60 V C57
2024-03-21 02:28:21 s 1 +169134.81 9 +269250.74 6270.0 C57
2024-03-21 02:48:21 S 12 44 04.978 +41 09 46.19 V C57
2024-03-21 02:48:21 s 1 +168402.42 4 +269496.46 7980.0 C57
2024-03-21 03:08:21 S 12 44 05.033 +41 10 18.91 V C57
2024-03-21 03:08:21 s 1 +167667.09 5 +269737.41 1770.0 C57
2024-03-21 03:28:21 S 12 44 04.970 +41 10 50.92 V C57
2024-03-21 03:28:21 s 1 +166928.90 1 +269973.68 7920.0 C57
2024-03-21 04:48:21 S 12 44 04.706 +41 12 56.41 V C57
2024-03-21 04:48:21 s 1 +163947.25 4 +270870.97 7730.0 C57
2024-03-21 05:28:21 S 12 44 04.493 +41 13 56.60 V C57
2024-03-21 05:28:21 s 1 +162439.16 9 +271290.71 9450.0 C57
2024-03-21 05:30:02 C 12 41 50.204 +41 25 51.56 V 703
2024-03-21 05:33:21 C 12 41 50.096 +41 25 57.58 V 703
2024-03-21 05:36:40 C 12 41 50.003 +41 26 03.12 V 703
2024-03-21 05:39:59 C 12 41 49.895 +41 26 08.66 V 703
2024-03-21 05:48:21 S 12 44 04.253 +41 14 26.74 V C57
2024-03-21 05:48:21 s 1 +161680.85 2 +271493.33 4990.0 C57
2024-03-21 06:08:21 S 12 44 04.306 +41 14 59.35 V C57
2024-03-21 06:08:21 s 1 +160919.64 6 +271691.02 3720.0 C57
2024-03-21 06:48:21 S 12 44 04.063 +41 16 00.95 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)