85713 (1998 SS49)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6388279291 ± 9.76e-09
Semi-major axis (a)1.9234610632 AU ± 2.56e-10
Inclination (i)10.78514118° ± 2.02e-06
Long. of Asc. Node (Ω)40.94920425° ± 3.86e-06
Arg. of Perihelion (ω)103.13358943° ± 4.25e-06
Mean Anomaly (M)27.38773996° ± 4.24e-07
Mean Motion (n)0.3694768031°/day ± 7.39e-11
Perihelion dist (q)0.69470042 AU ± 1.88e-08
Aphelion dist (Q)3.15222171 AU ± 1.88e-08
Orbital Period2.66762697 yr ± 5.33e-10
Physical Parameters
H (abs. magnitude)15.77
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.234″
Uncertainty0
Orbit TypeApollo
MOID0.004653 AU
Observations Used1372
Radar Obs Used3
Oppositions15
Arc Total1998-2024
First Observation Used1998-09-29
Last Observation Used2024-10-22
Observations (1498)
Date Type RA Dec Mag Band Observatory
2023-04-09 08:50:29 C 20 01 33.382 -27 46 25.36 V W68
2023-04-09 09:07:07 C 20 01 34.207 -27 46 29.60 V W68
2023-04-11 02:15:15 C 20 03 39.307 -27 56 25.19 V M22
2023-04-11 02:19:28 C 20 03 39.458 -27 56 26.20 V M22
2023-04-11 02:27:08 C 20 03 39.883 -27 56 28.03 V M22
2023-04-11 02:42:07 C 20 03 40.570 -27 56 32.03 V M22
2023-04-15 09:02:22 C 20 08 22.646 -28 22 37.60 V W68
2023-04-15 09:06:30 C 20 08 22.807 -28 22 38.71 V W68
2023-04-15 09:20:56 C 20 08 23.366 -28 22 42.53 V W68
2023-04-15 09:29:50 C 20 08 23.760 -28 22 44.54 V W68
2023-04-17 03:00:47 C 20 10 06.043 -28 33 57.20 V M22
2023-04-17 03:05:01 C 20 10 06.190 -28 33 58.61 V M22
2023-04-17 03:14:30 C 20 10 06.571 -28 34 00.77 V M22
2023-04-17 03:30:40 C 20 10 07.195 -28 34 05.45 V M22
2023-04-18 08:46:11 C 20 11 14.969 -28 42 13.79 V W68
2023-04-18 08:50:54 C 20 11 15.161 -28 42 15.55 V W68
2023-04-18 08:58:21 C 20 11 15.418 -28 42 17.24 V W68
2023-04-18 09:13:21 C 20 11 15.941 -28 42 21.89 V W68
2023-04-19 23:59:58 S 20 12 39.61 -28 53 28.2 L C51
2023-04-20 03:35:51 C 20 12 47.359 -28 54 31.21 V M22
2023-04-20 03:43:33 C 20 12 47.609 -28 54 33.73 V M22
2023-04-20 03:54:39 C 20 12 47.986 -28 54 36.86 V M22
2023-04-20 14:01:48 S 20 13 08.34 -28 57 36.4 L C51
2023-04-20 15:35:20 S 20 13 11.49 -28 58 03.1 L C51
2023-04-20 17:08:51 S 20 13 14.64 -28 58 30.7 L C51
2023-04-20 20:15:52 S 20 13 20.89 -28 59 26.3 L C51
2023-04-20 23:23:05 S 20 13 27.09 -29 00 21.4 L C51
2023-04-21 02:30:08 S 20 13 33.22 -29 01 17.7 L C51
2023-04-24 08:26:01 C 20 15 53.503 -29 25 18.70 V W68
2023-04-24 08:33:29 C 20 15 53.690 -29 25 20.82 V W68
2023-04-24 08:38:11 C 20 15 53.830 -29 25 22.80 V W68
2023-04-24 08:45:30 C 20 15 54.024 -29 25 25.07 V W68
2023-04-26 02:02:34 C 20 16 56.935 -29 38 48.62 V M22
2023-04-26 02:07:32 C 20 16 57.046 -29 38 50.50 V M22
2023-04-26 02:27:52 C 20 16 57.482 -29 38 57.41 V M22
2023-04-29 02:13:42 C 20 18 27.677 -30 03 24.66 V M22
2023-04-29 02:17:04 C 20 18 27.730 -30 03 26.06 V M22
2023-04-29 02:23:52 C 20 18 27.854 -30 03 28.40 V M22
2023-05-03 08:02:56 C 20 19 52.874 -30 40 41.52 V W68
2023-05-03 08:05:35 C 20 19 52.956 -30 40 43.10 V W68
2023-05-03 08:12:21 C 20 19 53.002 -30 40 45.66 V W68
2023-05-03 08:22:19 C 20 19 53.052 -30 40 49.33 V W68
2023-05-04 09:12:15 C 20 20 05.806 -30 50 23.06 V W68
2023-05-04 09:17:45 C 20 20 05.870 -30 50 24.86 V W68
2023-05-04 09:56:19 C 20 20 06.091 -30 50 40.24 V W68
2023-05-04 10:06:29 C 20 20 06.142 -30 50 44.23 V W68
2023-05-05 01:06:25 C 20 20 12.686 -30 56 34.94 V M22
2023-05-05 01:09:01 C 20 20 12.590 -30 56 36.60 V M22
2023-05-05 01:13:00 C 20 20 12.768 -30 56 37.28 V M22
2023-05-05 01:20:59 C 20 20 12.773 -30 56 41.93 V M22
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-11-21 11:44:00 193523879.3 4 us 2380 -1 -1
2014-11-21 12:31:00 193610727.44 1 us 2380 -1 -1
2022-11-18 07:50:00 146933763 10 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)