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 22:08:21 S 12 43 27.353 +42 22 51.60 V C57
2024-03-22 22:08:21 s 1 +50940.319 0 +253913.56 8250.0 C57
2024-03-22 22:28:21 S 12 43 26.599 +42 23 29.98 V C57
2024-03-22 22:28:21 s 1 +49894.089 0 +253360.48 6980.0 C57
2024-03-22 22:48:21 S 12 43 26.093 +42 24 07.09 V C57
2024-03-22 22:48:21 s 1 +48846.339 0 +252799.59 6880.0 C57
2024-03-22 23:08:21 S 12 43 25.442 +42 24 42.98 V C57
2024-03-22 23:08:21 s 1 +47797.074 0 +252230.75 7340.0 C57
2024-03-22 23:28:21 S 12 43 25.013 +42 25 18.37 V C57
2024-03-22 23:28:21 s 1 +46746.348 0 +251654.11 8400.0 C57
2024-03-22 23:48:21 S 12 43 24.288 +42 25 57.40 V C57
2024-03-22 23:48:21 s 1 +45694.172 0 +251069.56 9560.0 C57
2024-03-23 00:08:21 S 12 43 23.719 +42 26 34.26 V C57
2024-03-23 00:08:21 s 1 +44640.550 0 +250476.98 180.0 C57
2024-03-23 00:28:21 S 12 43 22.973 +42 27 09.76 V C57
2024-03-23 00:28:21 s 1 +43585.539 0 +249876.49 320.0 C57
2024-03-23 00:48:21 S 12 43 22.363 +42 27 48.06 V C57
2024-03-23 00:48:21 s 1 +42529.149 0 +249268.00 9450.0 C57
2024-03-23 01:08:21 S 12 43 21.838 +42 28 23.16 V C57
2024-03-23 01:08:21 s 1 +41471.388 0 +248651.37 6900.0 C57
2024-03-23 01:28:21 S 12 43 21.149 +42 29 01.75 V C57
2024-03-23 01:28:21 s 1 +40412.309 0 +248026.75 2750.0 C57
2024-03-23 01:48:21 S 12 43 20.537 +42 29 40.60 V C57
2024-03-23 01:48:21 s 1 +39351.929 0 +247394.03 6450.0 C57
2024-03-23 02:08:21 S 12 43 19.728 +42 30 19.12 V C57
2024-03-23 02:08:21 s 1 +38290.254 0 +246753.07 7290.0 C57
2024-03-23 02:28:21 S 12 43 19.104 +42 30 54.40 V C57
2024-03-23 02:28:21 s 1 +37227.339 0 +246104.02 5380.0 C57
2024-03-23 03:28:21 S 12 43 17.119 +42 32 46.61 V C57
2024-03-23 03:28:21 s 1 +34031.338 0 +244107.42 7550.0 C57
2024-03-23 03:48:21 S 12 43 16.399 +42 33 24.62 V C57
2024-03-23 03:48:21 s 1 +32963.686 0 +243425.36 9720.0 C57
2024-03-23 04:08:21 S 12 43 15.701 +42 34 03.25 V C57
2024-03-23 04:08:21 s 1 +31894.905 0 +242734.86 6580.0 C57
2024-03-23 04:28:21 S 12 43 15.132 +42 34 40.15 V C57
2024-03-23 04:28:21 s 1 +30825.050 0 +242036.07 8250.0 C57
2024-03-23 04:48:21 S 12 43 14.338 +42 35 18.82 V C57
2024-03-23 04:48:21 s 1 +29754.139 0 +241328.89 4090.0 C57
2024-03-23 07:28:21 S 12 43 08.525 +42 40 23.48 V C57
2024-03-23 07:28:21 s 1 +21152.437 0 +235364.52 5900.0 C57
2024-03-23 07:48:21 S 12 43 07.620 +42 41 02.36 V C57
2024-03-23 07:48:21 s 1 +20073.410 0 +234580.19 8990.0 C57
2024-03-23 08:08:21 S 12 43 06.931 +42 41 39.91 V C57
2024-03-23 08:08:21 s 1 +18993.637 0 +233787.02 1340.0 C57
2024-03-23 10:28:21 S 12 43 01.344 +42 46 12.97 V C57
2024-03-23 10:28:21 s 1 +11417.603 0 +227987.69 7250.0 C57
2024-03-23 10:48:21 S 12 43 00.456 +42 46 51.13 V C57
2024-03-23 10:48:21 s 1 +10333.236 0 +227123.48 9040.0 C57
2024-03-23 10:58:40 C 12 40 36.665 +42 59 14.17 V T08
2024-03-23 11:08:21 S 12 42 59.638 +42 47 31.06 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)