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
2023-06-22 22:16:18 C 19 23 28.994 -39 36 53.93 V M22
2023-06-30 04:33:33 C 19 07 14.990 -40 14 14.93 V W68
2023-06-30 04:37:29 C 19 07 14.626 -40 14 15.72 V W68
2023-06-30 04:41:24 C 19 07 14.234 -40 14 16.15 V W68
2023-06-30 04:48:36 C 19 07 13.560 -40 14 17.41 V W68
2023-06-30 20:43:06 C 19 05 45.518 -40 16 35.18 V M22
2023-06-30 20:47:01 C 19 05 45.130 -40 16 36.12 V M22
2023-06-30 20:54:57 C 19 05 44.378 -40 16 37.16 V M22
2023-06-30 21:10:51 C 19 05 42.888 -40 16 39.86 V M22
2024-07-03 13:51:05 C 23 35 42.533 -16 06 47.45 X F51
2024-07-03 14:04:06 C 23 35 42.544 -16 06 49.31 X F51
2024-07-03 14:17:07 C 23 35 42.535 -16 06 51.30 X F51
2024-07-03 14:30:36 C 23 35 42.531 -16 06 53.33 X F51
2024-07-28 12:47:18 C 23 28 41.784 -18 22 30.03 X F51
2024-07-28 13:04:24 C 23 28 41.341 -18 22 35.07 X F51
2024-07-28 13:33:07 C 23 28 40.590 -18 22 43.37 X F51
2024-07-28 13:50:07 C 23 28 40.155 -18 22 48.39 X F51
2024-08-10 12:54:14 C 23 18 45.609 -20 00 03.02 X F52
2024-08-10 13:09:22 C 23 18 45.009 -20 00 07.96 X F52
2024-08-10 13:24:29 C 23 18 44.409 -20 00 12.86 X F52
2024-08-27 11:02:44 C 23 00 19.253 -22 09 14.04 X F52
2024-08-27 11:18:55 C 23 00 18.406 -22 09 18.80 X F52
2024-08-27 11:35:00 C 23 00 17.571 -22 09 23.50 X F52
2024-08-27 11:51:10 C 23 00 16.728 -22 09 28.17 X F52
2024-09-03 09:05:51 C 22 51 40.570 -22 55 04.68 X F52
2024-09-03 09:22:54 C 22 51 39.643 -22 55 09.02 X F52
2024-09-03 09:39:56 C 22 51 38.725 -22 55 13.55 X F52
2024-09-03 09:57:00 C 22 51 37.803 -22 55 17.77 X F52
2024-09-04 09:31:24 C 22 50 22.953 -23 01 13.71 X F51
2024-09-04 09:47:15 C 22 50 22.090 -23 01 17.66 X F51
2024-09-04 10:14:26 C 22 50 20.618 -23 01 24.42 X F51
2024-09-04 10:32:14 C 22 50 19.649 -23 01 28.83 X F51
2024-09-09 07:55:16 C 22 44 06.773 -23 28 28.24 X F51
2024-09-09 08:13:24 C 22 44 05.791 -23 28 32.14 X F51
2024-09-09 08:31:30 C 22 44 04.817 -23 28 35.95 X F51
2024-09-09 08:49:37 C 22 44 03.840 -23 28 39.79 X F51
2024-09-25 08:37:19 C 22 25 04.843 -24 23 07.56 X F52
2024-09-25 08:52:33 C 22 25 04.145 -24 23 08.64 X F52
2024-09-25 09:07:49 C 22 25 03.451 -24 23 09.69 X F52
2024-09-25 09:23:04 C 22 25 02.753 -24 23 10.64 X F52
2024-09-30 07:25:40 C 22 20 03.857 -24 28 52.51 X F51
2024-09-30 07:40:02 C 22 20 03.258 -24 28 52.95 X F51
2024-09-30 07:54:23 C 22 20 02.670 -24 28 53.30 X F51
2024-09-30 08:08:44 C 22 20 02.076 -24 28 53.73 X F51
2024-10-22 06:04:47 C 22 05 26.755 -23 56 54.41 X F51
2024-10-22 06:20:02 C 22 05 26.503 -23 56 52.29 X F51
2024-10-22 06:35:16 C 22 05 26.258 -23 56 50.21 X F51
2024-10-22 06:50:32 C 22 05 26.017 -23 56 48.13 X F51
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)