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
2024-03-22 02:28:21 s 1 +109318.38 2 +273769.21 8770.0 C57
2024-03-22 02:48:21 S 12 43 52.514 +41 48 41.94 V C57
2024-03-22 02:48:21 s 1 +108392.27 2 +273626.24 5370.0 C57
2024-03-22 03:08:21 S 12 43 52.186 +41 49 18.44 V C57
2024-03-22 03:08:21 s 1 +107463.72 0 +273477.00 8780.0 C57
2024-03-22 03:28:21 S 12 43 52.087 +41 49 52.28 V C57
2024-03-22 03:28:21 s 1 +106532.78 9 +273321.63 8860.0 C57
2024-03-22 03:48:21 S 12 43 51.744 +41 50 25.22 V C57
2024-03-22 03:48:21 s 1 +105599.46 7 +273160.03 5380.0 C57
2024-03-22 04:28:21 S 12 43 50.873 +41 51 34.74 V C57
2024-03-22 04:28:21 s 1 +103725.65 2 +272817.97 6880.0 C57
2024-03-22 04:48:21 S 12 43 50.681 +41 52 07.14 V C57
2024-03-22 04:48:21 s 1 +102785.21 0 +272637.54 1490.0 C57
2024-03-22 05:08:21 S 12 43 50.352 +41 52 42.89 V C57
2024-03-22 05:08:21 s 1 +101842.38 9 +272450.70 1670.0 C57
2024-03-22 05:28:21 S 12 43 50.011 +41 53 18.20 V C57
2024-03-22 05:28:21 s 1 +100897.25 0 +272257.58 7290.0 C57
2024-03-22 05:48:21 S 12 43 49.512 +41 53 51.72 V C57
2024-03-22 05:48:21 s 1 +99949.783 0 +272058.09 8110.0 C57
2024-03-22 06:08:21 S 12 43 49.370 +41 54 28.22 V C57
2024-03-22 06:08:21 s 1 +98999.970 0 +271852.12 3850.0 C57
2024-03-22 06:28:21 S 12 43 49.018 +41 55 01.85 V C57
2024-03-22 06:28:21 s 1 +98047.872 0 +271639.79 4390.0 C57
2024-03-22 06:48:21 S 12 43 48.643 +41 55 33.78 V C57
2024-03-22 06:48:21 s 1 +97093.480 0 +271421.01 9480.0 C57
2024-03-22 07:08:21 S 12 43 48.223 +41 56 07.80 V C57
2024-03-22 07:08:21 s 1 +96136.775 0 +271195.68 8830.0 C57
2024-03-22 07:28:21 S 12 43 47.952 +41 56 42.72 V C57
2024-03-22 07:28:21 s 1 +95177.819 0 +270963.91 2320.0 C57
2024-03-22 07:48:21 S 12 43 47.592 +41 57 16.92 V C57
2024-03-22 07:48:21 s 1 +94216.605 0 +270725.62 9700.0 C57
2024-03-22 08:08:21 S 12 43 47.040 +41 57 53.75 V C57
2024-03-22 08:08:21 s 1 +93253.113 0 +270480.69 650.0 C57
2024-03-22 08:28:21 S 12 43 46.771 +41 58 26.62 V C57
2024-03-22 08:28:21 s 1 +92287.406 0 +270229.25 5080.0 C57
2024-03-22 08:48:21 S 12 43 46.426 +41 59 02.76 V C57
2024-03-22 08:48:21 s 1 +91319.475 0 +269971.22 2700.0 C57
2024-03-22 09:08:21 S 12 43 46.032 +41 59 38.26 V C57
2024-03-22 09:08:21 s 1 +90349.306 0 +269706.47 3190.0 C57
2024-03-22 09:28:21 S 12 43 45.682 +42 00 11.95 V C57
2024-03-22 09:28:21 s 1 +89376.957 0 +269435.12 6470.0 C57
2024-03-22 09:48:21 S 12 43 45.194 +42 00 47.63 V C57
2024-03-22 09:48:21 s 1 +88402.423 0 +269157.10 2240.0 C57
2024-03-22 10:08:21 S 12 43 44.753 +42 01 21.32 V C57
2024-03-22 10:08:21 s 1 +87425.688 0 +268872.28 150.0 C57
2024-03-22 10:28:21 S 12 43 44.537 +42 01 56.82 V C57
2024-03-22 10:28:21 s 1 +86446.812 0 +268580.80 140.0 C57
2024-03-22 10:30:11 C 12 41 12.857 +42 15 15.34 V T05
2024-03-22 10:34:27 C 12 41 12.689 +42 15 22.93 V T05
2024-03-22 10:48:21 S 12 43 44.028 +42 02 31.81 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)