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
2018-08-24 06:44:41 s 1 +141108.23 3 +59870.171 240.0 C57
2018-08-24 11:14:41 S 00 43 47.705 -44 57 17.39 V C57
2018-08-24 11:14:41 s 1 +142127.80 7 +85821.645 380.0 C57
2018-08-24 11:44:41 S 00 43 39.742 -44 56 44.27 V C57
2018-08-24 11:44:41 s 1 +142104.96 1 +88630.490 1020.0 C57
2018-08-24 12:44:41 S 00 43 23.998 -44 55 29.53 V C57
2018-08-24 12:44:41 s 1 +141984.91 4 +94201.344 3890.0 C57
2018-08-24 13:14:41 S 00 43 17.472 -44 54 58.00 V C57
2018-08-24 13:14:41 s 1 +141888.83 3 +96963.106 0.232 C57
2018-08-24 15:44:41 S 00 42 38.772 -44 51 54.86 V C57
2018-08-24 15:44:41 s 1 +141069.02 8 +110531.38 0.324 C57
2018-08-24 16:44:41 S 00 42 23.472 -44 50 49.81 V C57
2018-08-24 16:44:41 s 1 +140591.98 1 +115845.10 0.292 C57
2018-08-24 17:44:41 S 00 42 08.390 -44 49 33.85 V C57
2018-08-24 17:44:41 s 1 +140035.30 4 +121093.31 0.165 C57
2018-08-24 18:14:41 S 00 41 59.755 -44 48 50.29 V C57
2018-08-24 18:14:41 s 1 +139728.19 3 +123692.77 0.948 C57
2018-08-24 19:44:41 S 00 41 38.710 -44 47 06.50 V C57
2018-08-24 19:44:41 s 1 +138696.74 7 +131392.35 0.592 C57
2018-08-24 20:14:41 S 00 41 30.518 -44 46 26.36 V C57
2018-08-24 20:14:41 s 1 +138317.54 7 +133925.91 0.682 C57
2018-08-24 20:44:41 S 00 41 23.340 -44 45 56.02 V C57
2018-08-24 20:44:41 s 1 +137921.29 1 +136443.00 0.92 C57
2018-08-24 23:14:41 S 00 40 44.904 -44 42 44.71 V C57
2018-08-24 23:14:41 s 1 +135696.70 7 +148781.54 0.808 C57
2018-08-24 23:44:41 S 00 40 37.399 -44 42 03.10 V C57
2018-08-24 23:44:41 s 1 +135205.51 5 +151200.01 0.36 C57
2018-08-25 02:14:41 S 00 40 00.130 -44 38 54.28 V C57
2018-08-25 02:14:41 s 1 +132535.60 4 +163047.60 0.577 C57
2018-08-25 03:14:41 S 00 39 45.348 -44 37 34.32 V C57
2018-08-25 03:14:41 s 1 +131373.25 5 +167673.12 0.827 C57
2018-08-25 04:14:41 S 00 39 30.158 -44 36 19.37 V C57
2018-08-25 04:14:41 s 1 +130160.27 8 +172234.26 0.356 C57
2018-08-25 04:44:41 S 00 39 23.258 -44 35 38.83 V C57
2018-08-25 04:44:41 s 1 +129535.45 2 +174490.81 0.755 C57
2018-08-25 05:44:41 S 00 39 08.018 -44 34 21.29 V C57
2018-08-25 05:44:41 s 1 +128250.37 3 +178956.10 0.599 C57
2018-08-25 07:14:41 S 00 38 46.678 -44 32 25.58 V C57
2018-08-25 07:14:41 s 1 +126237.75 0 +185535.29 0.23 C57
2018-08-25 08:14:41 S 00 38 31.541 -44 31 03.18 V C57
2018-08-25 08:14:41 s 1 +124841.98 1 +189842.88 0.236 C57
2018-08-25 10:14:41 S 00 38 04.135 -44 28 31.37 V C57
2018-08-25 10:14:41 s 1 +121928.48 0 +198271.54 0.949 C57
2018-08-25 11:44:41 S 00 37 41.710 -44 26 28.79 V C57
2018-08-25 11:44:41 s 1 +119642.92 4 +204431.67 0.136 C57
2018-08-25 14:44:41 S 00 36 59.522 -44 22 35.87 V C57
2018-08-25 14:44:41 s 1 +114835.09 3 +216343.84 0.415 C57
2018-08-25 17:44:41 S 00 36 15.667 -44 18 19.44 V C57
2018-08-25 17:44:41 s 1 +109741.58 1 +227722.72 0.84 C57
2018-08-25 19:14:41 S 00 35 54.787 -44 16 23.70 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)