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
1999-07-06 11:55:58 C 19 08 12.68 -39 56 04.6 z 428
1999-07-06 12:04:46 C 19 08 11.92 -39 56 05.4 z 428
1999-07-06 12:13:37 C 19 08 11.10 -39 56 06.4 z 428
2000-07-28 17:02:23 C 23 32 05.33 -17 58 22.8 c 474
2000-07-28 17:06:44 C 23 32 05.23 -17 58 24.1 c 474
2000-07-28 17:11:11 C 23 32 05.10 -17 58 25.3 c 474
2000-09-03 14:12:09 C 22 55 23.152 -22 33 47.96 413
2000-09-03 14:15:27 C 22 55 22.973 -22 33 48.92 413
2002-07-16 08:55:39 C 21 15 10.07 -32 53 28.1 711
2002-07-16 09:09:50 C 21 15 09.34 -32 53 32.6 19.8 c 644
2002-07-16 09:12:32 C 21 15 09.12 -32 53 33.7 711
2002-07-16 09:29:32 C 21 15 08.13 -32 53 38.6 711
2002-07-16 09:33:17 C 21 15 08.02 -32 53 39.6 20.0 c 644
2002-07-16 09:55:22 C 21 15 06.78 -32 53 47.2 19.8 c 644
2003-08-03 08:49:21 C 00 48 20.96 -07 12 23.0 19.5 c 671
2003-08-03 09:01:14 C 00 48 20.95 -07 12 24.9 19.6 c 671
2003-08-03 09:06:06 C 00 48 20.96 -07 12 25.5 19.8 c 671
2003-09-14 11:44:39 C 00 18 39.03 -11 59 04.8 c 474
2003-09-14 11:46:34 C 00 18 38.91 -11 59 05.7 c 474
2003-09-14 11:48:04 C 00 18 38.84 -11 59 05.9 c 474
2003-09-14 11:54:35 C 00 18 38.48 -11 59 08.2 c 474
2003-09-17 07:28:44 C 00 14 47.78 -12 23 01.1 18.5 c 704
2003-09-17 07:48:06 C 00 14 46.63 -12 23 07.6 18.9 c 704
2003-09-17 08:06:25 C 00 14 45.53 -12 23 14.0 19.4 c 704
2003-09-17 08:24:12 C 00 14 44.54 -12 23 19.5 19.1 c 704
2003-09-24 08:03:42 C 00 04 33.74 -13 19 35.6 18.3 c 644
2003-09-24 08:35:00 C 00 04 31.72 -13 19 45.7 18.3 c 644
2003-09-24 09:07:26 C 00 04 29.65 -13 19 55.7 18.6 c 644
2003-09-28 11:19:08 C 23 58 15.39 -13 49 52.7 20.5 c 608
2003-09-28 11:35:18 C 23 58 14.35 -13 49 57.4 20.2 c 608
2003-09-28 11:50:31 C 23 58 13.36 -13 50 02.3 20.7 c 608
2003-10-16 04:40:46 C 23 31 56.47 -15 17 15.0 o 699
2003-10-16 05:04:47 C 23 31 55.07 -15 17 16.6 o 699
2003-10-16 05:28:45 C 23 31 53.72 -15 17 19.5 o 699
2003-10-16 05:52:35 C 23 31 52.26 -15 17 23.3 o 699
2003-10-17 03:58:22 C 23 30 38.49 -15 19 37.3 18.4 c 644
2003-10-17 05:57:19 C 23 30 31.75 -15 19 48.8 18.4 c 644
2003-10-17 06:27:01 C 23 30 30.07 -15 19 51.7 18.4 c 644
2003-10-18 04:55:20 C 23 29 16.34 -15 21 52.4 18.7 c 704
2003-10-18 05:13:33 C 23 29 15.35 -15 21 54.0 18.8 c 704
2003-10-18 05:30:40 C 23 29 14.40 -15 21 56.2 18.5 c 704
2003-10-18 05:47:40 C 23 29 13.32 -15 21 57.4 19.1 c 704
2003-10-18 06:04:52 C 23 29 12.45 -15 21 58.2 18.9 c 704
2003-10-20 03:20:25 C 23 26 48.44 -15 25 16.2 18.6 c 704
2003-10-20 03:54:15 C 23 26 46.59 -15 25 17.0 18.8 c 704
2003-10-20 04:10:59 C 23 26 45.69 -15 25 18.8 19.0 c 704
2003-10-20 04:27:52 C 23 26 44.80 -15 25 20.1 18.8 c 704
2003-10-22 06:03:43 C 23 24 14.00 -15 27 42.7 20.5 c 608
2003-10-22 06:19:16 C 23 24 13.18 -15 27 43.2 20.3 c 608
2003-10-22 06:34:53 C 23 24 12.41 -15 27 44.7 20.8 c 608
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)