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
2019-11-01 04:11:43 C 23 11 30.30 -15 40 37.6 V 703
2019-11-01 04:17:07 C 23 11 30.08 -15 40 36.8 V G96
2019-11-12 05:22:34 C 23 04 47.686 -15 03 57.96 U F52
2019-11-12 05:42:07 C 23 04 47.332 -15 03 54.14 U F52
2019-11-12 06:01:43 C 23 04 46.984 -15 03 50.57 U F52
2019-11-12 06:21:16 C 23 04 46.620 -15 03 46.94 U F52
2019-11-12 06:36:33 C 23 04 46.342 -15 03 44.03 U F52
2019-11-12 06:52:22 C 23 04 46.061 -15 03 40.95 U F52
2019-11-12 07:08:08 C 23 04 45.765 -15 03 37.87 U F52
2019-11-12 07:23:54 C 23 04 45.480 -15 03 34.77 U F52
2019-11-23 04:59:12 C 23 02 35.858 -14 01 53.57 U F51
2019-11-23 05:13:55 C 23 02 35.836 -14 01 49.49 U F51
2019-11-23 05:28:38 C 23 02 35.812 -14 01 45.45 U F51
2019-11-26 05:50:15 C 23 02 44.643 -13 40 49.37 U F51
2019-11-26 06:07:50 C 23 02 44.697 -13 40 44.08 U F51
2019-11-26 06:25:23 C 23 02 44.742 -13 40 38.82 U F51
2019-11-26 06:42:53 C 23 02 44.794 -13 40 33.58 U F51
2019-12-08 06:19:33 C 23 06 17.309 -12 02 48.56 U F52
2019-12-08 06:36:48 C 23 06 17.633 -12 02 41.76 U F52
2019-12-08 06:52:49 C 23 06 17.937 -12 02 35.77 U F52
2019-12-08 07:08:52 C 23 06 18.248 -12 02 29.66 U F52
2019-12-12 05:15:15 C 23 08 24.546 -11 25 54.10 U F52
2019-12-12 05:31:08 C 23 08 24.922 -11 25 47.77 U F52
2019-12-12 05:46:56 C 23 08 25.288 -11 25 41.71 U F52
2020-01-05 03:12:38 C 23 29 45.31 -06 58 56.9 o 691
2020-01-05 03:24:30 C 23 29 45.88 -06 58 51.0 o 691
2020-01-05 03:36:22 C 23 29 46.43 -06 58 44.5 o 691
2020-01-23 05:28:41 C 23 54 13.472 -02 49 21.53 U F51
2020-01-23 05:35:35 C 23 54 13.907 -02 49 17.25 U F51
2020-01-23 05:42:25 C 23 54 14.345 -02 49 12.98 U F51
2020-01-23 05:49:16 C 23 54 14.774 -02 49 08.77 U F51
2020-05-18 05:50:14 C 06 42 55.66 +29 12 36.9 V T05
2020-05-18 05:56:10 C 06 42 57.26 +29 12 34.6 V T05
2020-05-18 06:04:07 C 06 42 59.46 +29 12 30.9 V T05
2020-05-18 06:20:00 C 06 43 03.84 +29 12 23.6 V T05
2020-05-26 19:40:54 C 07 41 07.70 +26 45 03.6 q K73
2020-05-26 19:45:59 C 07 41 09.17 +26 44 58.6 q K73
2020-06-03 06:08:56 C 08 31 49.59 +23 03 56.3 V T05
2020-06-03 06:14:14 C 08 31 51.10 +23 03 48.2 V T05
2020-06-03 06:22:10 C 08 31 53.29 +23 03 36.3 V T05
2020-06-03 06:36:53 C 08 31 57.43 +23 03 14.6 V T05
2020-06-09 05:54:29 C 09 11 39.77 +19 10 12.0 V T08
2020-06-09 05:59:07 C 09 11 41.01 +19 10 03.3 V T08
2020-06-09 06:07:05 C 09 11 43.18 +19 09 49.1 V T08
2020-06-09 06:28:18 C 09 11 48.89 +19 09 11.5 V T08
2020-06-13 05:57:14 C 09 37 22.56 +16 12 58.1 V T08
2020-06-13 06:01:20 C 09 37 23.62 +16 12 49.9 V T08
2020-06-13 06:11:19 C 09 37 26.22 +16 12 30.9 V T08
2020-06-13 06:27:15 C 09 37 30.41 +16 12 00.2 V T08
2020-06-17 05:56:28 C 10 02 09.27 +13 04 40.9 V T08
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)