11885 Summanus (1990 SS)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4745418473 ± 1.74e-08
Semi-major axis (a)1.7033081412 AU ± 1.42e-09
Inclination (i)19.43143433° ± 6.27e-06
Long. of Asc. Node (Ω)359.76286922° ± 3.85e-06
Arg. of Perihelion (ω)116.22731299° ± 5.91e-06
Mean Anomaly (M)236.65290078° ± 3.86e-06
Mean Motion (n)0.4433762673°/day ± 5.56e-10
Perihelion dist (q)0.89501715 AU ± 2.97e-08
Aphelion dist (Q)2.51159913 AU ± 2.98e-08
Orbital Period2.22300190 yr ± 2.79e-09
Physical Parameters
H (abs. magnitude)18.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.383″
Uncertainty0
Orbit TypeApollo
MOID0.067100 AU
Observations Used343
Oppositions18
Arc Total1990-2023
First Observation Used1990-09-25
Last Observation Used2023-09-04
Observations (398)
Date Type RA Dec Mag Band Observatory
2019-11-03 15:09:55 C 10 26 54.37 +72 45 39.0 V T08
2019-11-03 15:15:59 C 10 26 59.52 +72 45 30.8 V T08
2019-11-03 15:24:01 C 10 27 06.63 +72 45 19.9 V T08
2019-11-03 15:32:46 C 10 27 14.37 +72 45 07.4 V T08
2019-11-09 07:08:33 S 12 02 33.180 +67 50 30.73 L C51
2019-11-09 10:16:52 S 12 04 11.594 +67 42 01.98 L C51
2019-11-09 11:51:08 S 12 05 00.305 +67 37 46.42 L C51
2019-11-09 13:25:23 S 12 05 48.773 +67 33 30.17 L C51
2019-11-09 14:59:27 S 12 06 36.802 +67 29 13.06 L C51
2019-11-09 14:59:38 S 12 06 36.898 +67 29 13.02 L C51
2019-11-09 16:33:42 S 12 07 24.55 +67 24 55.6 L C51
2019-11-09 18:07:56 S 12 08 12.01 +67 20 37.1 L C51
2019-11-09 19:42:11 S 12 08 59.17 +67 16 18.3 L C51
2019-11-09 21:16:16 S 12 09 45.89 +67 11 58.7 L C51
2019-11-09 22:50:31 S 12 10 32.43 +67 07 38.3 L C51
2019-11-10 00:24:46 S 12 11 18.63 +67 03 17.3 L C51
2019-11-29 15:04:37 C 14 00 39.59 +43 50 14.2 V T05
2019-11-29 15:09:01 C 14 00 40.05 +43 50 03.2 V T05
2019-11-29 15:17:27 C 14 00 40.97 +43 49 38.2 V T05
2019-11-29 15:37:26 C 14 00 43.06 +43 48 44.6 V T05
2019-12-02 12:40:05 C 14 07 49.21 +40 38 06.5 V 703
2019-12-02 12:47:14 C 14 07 49.85 +40 37 47.4 V 703
2019-12-02 12:54:23 C 14 07 50.57 +40 37 27.9 V 703
2019-12-02 13:01:31 C 14 07 51.19 +40 37 08.6 V 703
2019-12-20 12:23:34 C 14 40 31.27 +22 28 41.1 V 703
2019-12-20 12:31:07 C 14 40 31.77 +22 28 23.3 V 703
2019-12-20 12:38:41 C 14 40 32.29 +22 28 06.3 V 703
2019-12-20 12:46:15 C 14 40 32.76 +22 27 46.7 V 703
2020-01-26 15:28:53 C 15 37 57.171 -08 06 08.21 U F51
2020-01-26 15:35:20 C 15 37 57.559 -08 06 19.78 U F51
2020-01-26 15:41:47 C 15 37 57.956 -08 06 31.21 U F51
2020-01-26 15:48:14 C 15 37 58.349 -08 06 42.83 U F51
2020-02-05 15:01:57 C 15 53 01.802 -14 56 34.77 U F51
2020-02-05 15:09:21 C 15 53 02.228 -14 56 47.06 U F51
2020-02-05 15:16:43 C 15 53 02.649 -14 56 59.30 U F51
2020-02-05 15:24:05 C 15 53 03.069 -14 57 11.48 U F51
2020-02-27 09:28:55 S 16 19 47.729 -28 21 57.42 L C51
2020-02-27 12:37:25 S 16 19 54.830 -28 26 32.39 L C51
2020-02-27 15:45:44 S 16 20 01.74 -28 31 04.7 L C51
2020-02-27 17:19:59 S 16 20 05.28 -28 33 22.2 L C51
2020-02-27 18:54:03 S 16 20 08.79 -28 35 39.1 L C51
2020-02-27 22:02:34 S 16 20 15.74 -28 40 11.8 L C51
2020-02-27 23:36:37 S 16 20 19.14 -28 42 28.0 L C51
2020-02-27 23:36:48 S 16 20 19.16 -28 42 28.1 L C51
2020-02-28 01:10:52 S 16 20 22.56 -28 44 44.6 L C51
2020-02-28 02:45:07 S 16 20 26.02 -28 47 01.0 L C51
2020-02-28 05:53:26 S 16 20 32.82 -28 51 33.8 L C51
2020-02-28 09:01:45 S 16 20 39.602 -28 56 06.04 L C51
2020-02-28 09:01:56 S 16 20 39.576 -28 56 05.68 L C51
2020-02-28 15:18:35 S 16 20 53.01 -29 05 09.6 L C51