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
2019-10-04 11:17:24 C 23 45 35.64 -14 51 17.8 V T08
2019-10-04 11:32:45 C 23 45 34.63 -14 51 22.1 V T08
2019-10-14 08:05:02 C 23 31 18.799 -15 33 04.05 U F52
2019-10-14 08:20:53 C 23 31 17.864 -15 33 05.92 U F52
2019-10-14 08:36:48 C 23 31 16.936 -15 33 07.84 U F52
2019-10-14 08:52:33 C 23 31 16.013 -15 33 09.78 U F52
2019-10-16 09:30:57 C 23 28 33.16 -15 38 27.4 V T08
2019-10-16 09:36:24 C 23 28 32.88 -15 38 27.3 V T08
2019-10-16 09:45:04 C 23 28 32.38 -15 38 28.8 V T08
2019-10-16 09:59:57 C 23 28 31.53 -15 38 30.3 V T08
2019-10-20 04:30:58 C 23 23 45.60 -15 45 17.7 V 703
2019-10-20 04:46:12 C 23 23 44.73 -15 45 18.0 V 703
2019-10-20 04:53:49 C 23 23 44.24 -15 45 18.1 V 703
2019-10-22 07:46:59 C 23 21 13.85 -15 47 19.2 V T05
2019-10-22 07:55:28 C 23 21 13.42 -15 47 19.8 V T05
2019-10-22 08:00:07 C 23 21 13.12 -15 47 19.4 V T05
2019-10-22 08:17:23 C 23 21 12.31 -15 47 20.2 V T05
2019-10-23 03:59:14 C 23 20 16.34 -15 47 49.0 V 703
2019-10-23 04:06:50 C 23 20 16.05 -15 47 48.9 V 703
2019-10-23 04:14:26 C 23 20 15.73 -15 47 48.0 V 703
2019-10-23 04:22:03 C 23 20 15.40 -15 47 49.1 V 703
2019-10-23 07:36:50 C 23 20 06.178 -15 47 50.89 U F52
2019-10-23 07:52:47 C 23 20 05.407 -15 47 51.10 U F52
2019-10-23 08:08:46 C 23 20 04.636 -15 47 51.34 U F52
2019-10-23 08:13:14 C 23 20 04.42 -15 47 51.6 V T08
2019-10-23 08:17:53 C 23 20 04.21 -15 47 52.1 V T08
2019-10-23 08:24:44 C 23 20 03.864 -15 47 51.65 U F52
2019-10-23 08:27:11 C 23 20 03.69 -15 47 51.8 V T08
2019-10-23 08:42:27 C 23 20 03.00 -15 47 52.0 V T08
2019-10-24 07:39:00 C 23 18 59.832 -15 48 05.73 U F52
2019-10-24 07:53:50 C 23 18 59.134 -15 48 05.81 U F52
2019-10-24 08:08:42 C 23 18 58.437 -15 48 05.89 U F52
2019-10-27 08:50:10 C 23 15 49.88 -15 47 08.7 V T08
2019-10-27 08:55:28 C 23 15 49.64 -15 47 08.8 V T08
2019-10-27 09:03:27 C 23 15 49.35 -15 47 08.3 V T08
2019-10-27 09:18:41 C 23 15 48.66 -15 47 08.2 V T08
2019-10-29 04:15:37 C 23 14 06.47 -15 45 23.8 V 703
2019-10-29 04:23:51 C 23 14 06.10 -15 45 25.1 V 703
2019-10-29 04:32:07 C 23 14 05.75 -15 45 24.3 V 703
2019-10-29 04:40:22 C 23 14 05.47 -15 45 24.4 V 703
2019-10-31 07:44:11 C 23 12 12.62 -15 42 12.2 V T08
2019-10-31 07:48:24 C 23 12 12.48 -15 42 11.4 V T08
2019-10-31 07:56:29 C 23 12 12.19 -15 42 11.6 V T08
2019-10-31 08:10:52 C 23 12 11.66 -15 42 09.8 V T08
2019-11-01 03:46:56 C 23 11 31.17 -15 40 39.8 V 703
2019-11-01 03:54:50 C 23 11 30.87 -15 40 38.5 V G96
2019-11-01 03:55:11 C 23 11 30.82 -15 40 38.5 V 703
2019-11-01 04:02:16 C 23 11 30.62 -15 40 37.9 V G96
2019-11-01 04:03:27 C 23 11 30.61 -15 40 38.3 V 703
2019-11-01 04:09:41 C 23 11 30.35 -15 40 37.2 V G96
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)