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
2024-03-21 06:48:21 s 1 +159388.75 0 +272071.80 1620.0 C57
2024-03-21 08:08:21 S 12 44 03.794 +41 18 10.26 V C57
2024-03-21 08:08:21 s 1 +156292.85 1 +272773.94 1970.0 C57
2024-03-21 08:28:21 S 12 44 03.530 +41 18 41.98 V C57
2024-03-21 08:28:21 s 1 +155511.82 8 +272937.04 7150.0 C57
2024-03-21 08:48:21 S 12 44 03.264 +41 19 12.86 V C57
2024-03-21 08:48:21 s 1 +154727.99 5 +273095.12 6620.0 C57
2024-03-21 09:02:22 C 12 41 46.003 +41 31 51.96 V T05
2024-03-21 09:06:18 C 12 41 45.900 +41 31 58.69 V T05
2024-03-21 09:08:21 S 12 44 03.370 +41 19 43.57 V C57
2024-03-21 09:08:21 s 1 +153941.32 1 +273248.10 450.0 C57
2024-03-21 09:14:37 C 12 41 45.614 +41 32 13.06 V T05
2024-03-21 09:22:26 C 12 41 45.350 +41 32 26.45 V T05
2024-03-21 09:28:21 S 12 44 03.130 +41 20 15.79 V C57
2024-03-21 09:28:21 s 1 +153151.87 1 +273396.08 8880.0 C57
2024-03-21 09:48:21 S 12 44 03.132 +41 20 49.81 V C57
2024-03-21 09:48:21 s 1 +152359.62 8 +273538.98 2000.0 C57
2024-03-21 10:08:21 S 12 44 02.921 +41 21 19.66 V C57
2024-03-21 10:08:21 s 1 +151564.56 1 +273676.73 9880.0 C57
2024-03-21 10:28:21 S 12 44 02.698 +41 21 49.21 V C57
2024-03-21 10:28:21 s 1 +150766.73 5 +273809.42 2770.0 C57
2024-03-21 10:48:21 S 12 44 02.652 +41 22 24.13 V C57
2024-03-21 10:48:21 s 1 +149966.13 2 +273936.98 750.0 C57
2024-03-21 10:53:09 C 12 41 42.270 +41 34 59.74 X F51
2024-03-21 11:08:21 S 12 44 02.616 +41 22 54.91 V C57
2024-03-21 11:08:21 s 1 +149162.72 2 +274059.33 3910.0 C57
2024-03-21 11:08:48 C 12 41 41.725 +41 35 25.83 X F51
2024-03-21 11:28:21 S 12 44 02.496 +41 23 26.45 V C57
2024-03-21 11:28:21 s 1 +148356.57 0 +274176.56 2470.0 C57
2024-03-21 11:34:00 C 12 41 40.845 +41 36 07.64 X F51
2024-03-21 11:48:21 S 12 44 02.407 +41 24 01.22 V C57
2024-03-21 11:48:21 s 1 +147547.66 0 +274288.61 6550.0 C57
2024-03-21 11:49:08 C 12 41 40.321 +41 36 32.60 X F51
2024-03-21 12:08:21 S 12 44 02.174 +41 24 33.55 V C57
2024-03-21 12:08:21 s 1 +146735.95 9 +274395.38 6210.0 C57
2024-03-21 12:28:21 S 12 44 01.970 +41 25 02.42 V C57
2024-03-21 12:28:21 s 1 +145921.53 4 +274496.98 1710.0 C57
2024-03-21 13:08:21 S 12 44 01.627 +41 26 08.41 V C57
2024-03-21 13:08:21 s 1 +144283.53 0 +274683.42 390.0 C57
2024-03-21 13:28:21 S 12 44 01.567 +41 26 42.50 V C57
2024-03-21 13:28:21 s 1 +143460.88 5 +274769.21 4040.0 C57
2024-03-21 13:48:21 S 12 44 01.433 +41 27 11.12 V C57
2024-03-21 13:48:21 s 1 +142635.51 2 +274849.70 4050.0 C57
2024-03-21 14:08:21 S 12 44 01.262 +41 27 45.50 V C57
2024-03-21 14:08:21 s 1 +141807.38 6 +274924.80 520.0 C57
2024-03-21 14:28:21 S 12 44 01.174 +41 28 17.94 V C57
2024-03-21 14:28:21 s 1 +140976.57 3 +274994.61 3680.0 C57
2024-03-21 14:48:21 S 12 44 00.974 +41 28 52.18 V C57
2024-03-21 14:48:21 s 1 +140143.05 5 +275059.05 3640.0 C57
2024-03-21 15:08:21 S 12 44 00.893 +41 29 25.51 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)