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
2024-03-24 18:08:21 S 12 41 03.778 +43 53 07.37 V C57
2024-03-24 18:08:21 s 1 -85052.681 0 +101689.99 0.473 C57
2024-03-24 18:28:21 S 12 41 02.004 +43 53 51.90 V C57
2024-03-24 18:28:21 s 1 -85864.569 0 +99868.226 0.233 C57
2024-03-24 18:48:21 S 12 41 00.398 +43 54 36.43 V C57
2024-03-24 18:48:21 s 1 -86668.266 0 +98036.886 0.007 C57
2024-03-24 19:08:21 S 12 40 58.565 +43 55 22.51 V C57
2024-03-24 19:08:21 s 1 -87463.498 0 +96195.929 0.509 C57
2024-03-24 19:28:21 S 12 40 56.894 +43 56 07.30 V C57
2024-03-24 19:28:21 s 1 -88250.282 0 +94345.641 0.879 C57
2024-03-24 19:48:21 S 12 40 55.070 +43 56 54.82 V C57
2024-03-24 19:48:21 s 1 -89028.381 0 +92486.026 0.892 C57
2024-03-24 20:28:21 S 12 40 51.463 +43 58 28.20 V C57
2024-03-24 20:28:21 s 1 -90557.689 0 +88739.007 0.124 C57
2024-03-24 20:48:21 S 12 40 49.666 +43 59 15.40 V C57
2024-03-24 20:48:21 s 1 -91308.674 0 +86851.913 0.263 C57
2024-03-24 21:08:21 S 12 40 48.053 +43 59 58.99 V C57
2024-03-24 21:08:21 s 1 -92050.167 0 +84955.752 0.38 C57
2024-03-24 21:27:07 C 12 39 39.089 +44 05 04.92 V Z80
2024-03-24 21:28:21 S 12 40 46.082 +44 00 44.68 V C57
2024-03-24 21:28:21 s 1 -92782.198 0 +83050.821 0.633 C57
2024-03-24 21:33:47 C 12 39 38.844 +44 05 18.74 V Z80
2024-03-24 21:40:26 C 12 39 38.587 +44 05 32.68 V Z80
2024-03-24 21:48:21 S 12 40 44.330 +44 01 32.16 V C57
2024-03-24 21:48:21 s 1 -93504.512 0 +81137.152 0.791 C57
2024-03-24 22:08:21 S 12 40 42.482 +44 02 18.89 V C57
2024-03-24 22:08:21 s 1 -94216.799 0 +79214.746 0.556 C57
2024-03-24 22:28:21 S 12 40 40.673 +44 03 07.81 V C57
2024-03-24 22:28:21 s 1 -94919.096 0 +77283.905 0.094 C57
2024-03-24 22:48:21 S 12 40 38.782 +44 03 51.84 V C57
2024-03-24 22:48:21 s 1 -95611.140 0 +75344.679 0.174 C57
2024-03-24 22:59:57 C 12 39 34.934 +44 08 18.53 Z C23
2024-03-24 23:03:12 C 12 39 34.836 +44 08 25.08 Z C23
2024-03-24 23:07:30 C 12 39 34.651 +44 08 34.19 Z C23
2024-03-24 23:08:21 S 12 40 36.931 +44 04 41.74 V C57
2024-03-24 23:08:21 s 1 -96292.611 0 +73397.085 0.496 C57
2024-03-24 23:28:21 S 12 40 35.155 +44 05 25.30 V C57
2024-03-24 23:28:21 s 1 -96963.553 0 +71441.432 0.235 C57
2024-03-25 00:08:21 S 12 40 31.286 +44 07 00.26 V C57
2024-03-25 00:08:21 s 1 -98272.707 0 +67506.185 0.969 C57
2024-03-25 00:48:21 S 12 40 27.626 +44 08 33.25 V C57
2024-03-25 00:48:21 s 1 -99537.217 0 +63540.142 0.564 C57
2024-03-25 01:08:21 S 12 40 25.466 +44 09 23.69 V C57
2024-03-25 01:08:21 s 1 -100152.09 6 +61545.842 0.816 C57
2024-03-25 01:28:21 S 12 40 23.604 +44 10 10.45 V C57
2024-03-25 01:28:21 s 1 -100755.33 9 +59544.362 0.801 C57
2024-03-25 01:48:21 S 12 40 21.578 +44 10 57.00 V C57
2024-03-25 01:48:21 s 1 -101346.66 1 +57535.804 0.29 C57
2024-03-25 02:08:21 S 12 40 19.855 +44 11 41.71 V C57
2024-03-25 02:08:21 s 1 -101925.71 1 +55520.250 0.979 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)