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 10:48:21 s 1 +85465.791 0 +268282.55 1890.0 C57
2024-03-22 11:08:21 S 12 43 43.802 +42 03 03.85 V C57
2024-03-22 11:08:21 s 1 +84482.609 0 +267977.43 5050.0 C57
2024-03-22 11:08:27 C 12 41 11.386 +42 16 22.55 V T05
2024-03-22 11:29:37 C 12 41 10.553 +42 16 59.59 V T05
2024-03-22 15:08:21 S 12 43 38.266 +42 10 10.88 V C57
2024-03-22 15:08:21 s 1 +72523.182 0 +263776.55 7830.0 C57
2024-03-22 15:28:21 S 12 43 37.706 +42 10 48.18 V C57
2024-03-22 15:28:21 s 1 +71513.569 0 +263380.65 7060.0 C57
2024-03-22 15:48:21 S 12 43 37.366 +42 11 23.75 V C57
2024-03-22 15:48:21 s 1 +70502.034 0 +262977.57 4090.0 C57
2024-03-22 16:08:21 S 12 43 36.835 +42 12 00.94 V C57
2024-03-22 16:08:21 s 1 +69488.567 0 +262567.19 8490.0 C57
2024-03-22 16:28:21 S 12 43 36.331 +42 12 35.14 V C57
2024-03-22 16:28:21 s 1 +68473.226 0 +262149.64 220.0 C57
2024-03-22 16:48:21 S 12 43 35.938 +42 13 12.47 V C57
2024-03-22 16:48:21 s 1 +67456.012 0 +261724.82 8890.0 C57
2024-03-22 17:08:21 S 12 43 35.441 +42 13 47.28 V C57
2024-03-22 17:08:21 s 1 +66436.918 0 +261292.62 4040.0 C57
2024-03-22 17:28:21 S 12 43 34.925 +42 14 22.45 V C57
2024-03-22 17:28:21 s 1 +65416.002 0 +260853.16 5650.0 C57
2024-03-22 17:48:21 S 12 43 34.358 +42 14 59.82 V C57
2024-03-22 17:48:21 s 1 +64393.266 0 +260406.34 3310.0 C57
2024-03-22 18:08:21 S 12 43 33.919 +42 15 33.30 V C57
2024-03-22 18:08:21 s 1 +63368.705 0 +259952.05 6530.0 C57
2024-03-22 18:28:21 S 12 43 33.456 +42 16 11.68 V C57
2024-03-22 18:28:21 s 1 +62342.375 0 +259490.41 5320.0 C57
2024-03-22 18:48:21 S 12 43 32.803 +42 16 48.25 V C57
2024-03-22 18:48:21 s 1 +61314.280 0 +259021.33 9240.0 C57
2024-03-22 19:08:21 S 12 43 32.390 +42 17 21.30 V C57
2024-03-22 19:08:21 s 1 +60284.415 0 +258544.68 7790.0 C57
2024-03-22 19:28:21 S 12 43 31.754 +42 17 57.77 V C57
2024-03-22 19:28:21 s 1 +59252.839 0 +258060.59 960.0 C57
2024-03-22 19:48:21 S 12 43 31.363 +42 18 33.62 V C57
2024-03-22 19:48:21 s 1 +58219.555 0 +257568.97 8330.0 C57
2024-03-22 20:08:21 S 12 43 30.722 +42 19 12.68 V C57
2024-03-22 20:08:21 s 1 +57184.561 0 +257069.69 9340.0 C57
2024-03-22 20:28:21 S 12 43 30.166 +42 19 48.00 V C57
2024-03-22 20:28:21 s 1 +56147.914 0 +256562.88 4030.0 C57
2024-03-22 20:40:19 C 12 41 00.266 +42 32 41.64 V Z80
2024-03-22 20:48:16 C 12 41 00.007 +42 32 56.69 V Z80
2024-03-22 20:48:21 S 12 43 29.506 +42 20 25.48 V C57
2024-03-22 20:48:21 s 1 +55109.619 0 +256048.45 1940.0 C57
2024-03-22 20:56:16 C 12 40 59.803 +42 33 11.66 V Z80
2024-03-22 21:08:21 S 12 43 29.069 +42 21 00.43 V C57
2024-03-22 21:08:21 s 1 +54069.676 0 +255526.26 2490.0 C57
2024-03-22 21:28:21 S 12 43 28.464 +42 21 38.16 V C57
2024-03-22 21:28:21 s 1 +53028.142 0 +254996.46 5740.0 C57
2024-03-22 21:48:21 S 12 43 27.874 +42 22 15.20 V C57
2024-03-22 21:48:21 s 1 +51985.022 0 +254458.94 1180.0 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)