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 15:08:21 s 1 +139306.80 4 +275118.05 520.0 C57
2024-03-21 17:08:21 S 12 43 59.786 +41 32 40.02 V C57
2024-03-21 17:08:21 s 1 +134233.04 4 +275357.97 6270.0 C57
2024-03-21 17:28:21 S 12 43 59.431 +41 33 11.52 V C57
2024-03-21 17:28:21 s 1 +133378.09 3 +275378.74 6070.0 C57
2024-03-21 17:48:21 S 12 43 59.186 +41 33 43.56 V C57
2024-03-21 17:48:21 s 1 +132520.49 8 +275393.96 4050.0 C57
2024-03-21 18:08:21 S 12 43 59.009 +41 34 15.67 V C57
2024-03-21 18:08:21 s 1 +131660.23 1 +275403.54 350.0 C57
2024-03-21 18:28:21 S 12 43 58.814 +41 34 49.94 V C57
2024-03-21 18:28:21 s 1 +130797.35 8 +275407.59 5170.0 C57
2024-03-21 18:48:21 S 12 43 58.622 +41 35 21.08 V C57
2024-03-21 18:48:21 s 1 +129931.86 2 +275406.03 8650.0 C57
2024-03-21 19:08:21 S 12 43 58.387 +41 35 54.78 V C57
2024-03-21 19:08:21 s 1 +129063.71 7 +275398.76 940.0 C57
2024-03-21 19:28:21 S 12 43 58.318 +41 36 29.16 V C57
2024-03-21 19:28:21 s 1 +128192.98 7 +275385.90 2230.0 C57
2024-03-21 19:48:21 S 12 43 58.121 +41 37 02.14 V C57
2024-03-21 19:48:21 s 1 +127319.65 7 +275367.36 2680.0 C57
2024-03-21 20:08:21 S 12 43 57.770 +41 37 35.69 V C57
2024-03-21 20:08:21 s 1 +126443.70 0 +275343.05 2440.0 C57
2024-03-21 20:28:21 S 12 43 57.643 +41 38 08.77 V C57
2024-03-21 20:28:21 s 1 +125565.18 1 +275313.08 1700.0 C57
2024-03-21 21:48:21 S 12 43 56.640 +41 40 21.18 V C57
2024-03-21 21:48:21 s 1 +122025.35 6 +275135.49 2970.0 C57
2024-03-21 22:08:21 S 12 43 56.280 +41 40 55.09 V C57
2024-03-21 22:08:21 s 1 +121133.98 7 +275076.52 3690.0 C57
2024-03-21 22:28:21 S 12 43 56.088 +41 41 28.64 V C57
2024-03-21 22:28:21 s 1 +120240.10 2 +275011.75 3890.0 C57
2024-03-21 22:48:21 S 12 43 55.968 +41 42 01.22 V C57
2024-03-21 22:48:21 s 1 +119343.68 9 +274941.11 3380.0 C57
2024-03-21 23:28:21 S 12 43 55.286 +41 43 07.79 V C57
2024-03-21 23:28:21 s 1 +117543.26 7 +274782.02 9520.0 C57
2024-03-21 23:48:21 S 12 43 55.037 +41 43 41.92 V C57
2024-03-21 23:48:21 s 1 +116639.30 9 +274693.61 5810.0 C57
2024-03-22 00:08:21 S 12 43 54.725 +41 44 14.68 V C57
2024-03-22 00:08:21 s 1 +115732.82 4 +274599.16 660.0 C57
2024-03-22 00:28:21 S 12 43 54.480 +41 44 49.81 V C57
2024-03-22 00:28:21 s 1 +114823.87 4 +274498.77 3900.0 C57
2024-03-22 00:48:21 S 12 43 54.175 +41 45 22.25 V C57
2024-03-22 00:48:21 s 1 +113912.44 9 +274392.38 5340.0 C57
2024-03-22 01:08:21 S 12 43 54.010 +41 45 54.40 V C57
2024-03-22 01:08:21 s 1 +112998.52 5 +274279.88 4770.0 C57
2024-03-22 01:28:21 S 12 43 53.825 +41 46 28.92 V C57
2024-03-22 01:28:21 s 1 +112082.16 3 +274161.38 2030.0 C57
2024-03-22 01:48:21 S 12 43 53.405 +41 47 02.76 V C57
2024-03-22 01:48:21 s 1 +111163.35 3 +274036.81 6920.0 C57
2024-03-22 02:08:21 S 12 43 53.218 +41 47 38.26 V C57
2024-03-22 02:08:21 s 1 +110242.07 2 +273906.05 9220.0 C57
2024-03-22 02:28:21 S 12 43 52.843 +41 48 10.98 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)