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
2019-09-14 12:46:35 C 03 14 06.172 +29 58 22.01 U F52
2019-09-14 13:03:25 C 03 14 07.476 +29 58 50.00 U F52
2019-09-14 13:37:12 C 03 14 10.049 +29 59 46.65 U F52
2019-09-20 11:36:25 C 03 26 13.18 +34 15 16.5 U I41
2019-09-20 11:37:05 C 03 26 13.25 +34 15 17.8 U I41
2019-09-22 09:29:08 C 03 30 27.10 +35 46 10.9 U I41
2019-09-22 09:29:47 C 03 30 27.16 +35 46 12.3 U I41
2019-09-23 09:24:27 C 03 32 43.99 +36 35 20.0 U I41
2019-09-23 09:25:06 C 03 32 44.06 +36 35 21.3 U I41
2019-09-25 09:52:11 C 03 37 32.65 +38 18 42.9 U I41
2019-09-25 09:52:50 C 03 37 32.70 +38 18 44.2 U I41
2019-09-26 12:39:45 C 03 40 19.64 +39 18 10.1 V T05
2019-09-26 12:43:48 C 03 40 20.05 +39 18 17.9 V T05
2019-09-26 13:06:38 C 03 40 22.40 +39 19 10.5 V T05
2019-09-26 14:07:50 C 03 40 28.51 +39 21 28.0 V T05
2019-09-27 01:02:26 C 03 41 38.95 +39 46 01.9 V C95
2019-09-27 01:12:10 C 03 41 39.92 +39 46 24.0 V C95
2019-09-27 01:21:54 C 03 41 40.96 +39 46 46.7 V C95
2019-10-06 07:51:36 C 04 10 31.75 +49 11 08.3 V G96
2019-10-06 07:59:21 C 04 10 32.94 +49 11 30.2 V G96
2019-10-06 08:07:07 C 04 10 34.14 +49 11 52.1 V G96
2019-10-06 12:34:29 C 04 11 16.53 +49 24 26.7 V T08
2019-10-06 12:40:11 C 04 11 17.39 +49 24 42.9 V T08
2019-10-06 12:50:19 C 04 11 18.96 +49 25 11.1 V T08
2019-10-06 13:05:44 C 04 11 21.29 +49 25 54.7 V T08
2019-10-14 06:53:36 C 04 50 07.89 +58 38 20.7 U I41
2019-10-14 06:54:16 C 04 50 08.07 +58 38 22.7 U I41
2019-10-14 08:02:17 C 04 50 26.23 +58 41 57.0 U I41
2019-10-14 08:04:13 C 04 50 26.76 +58 42 03.1 U I41
2019-10-15 03:34:24 C 04 55 54.93 +59 42 26.1 V K87
2019-10-15 03:38:45 C 04 55 56.19 +59 42 39.6 V K87
2019-10-15 03:43:04 C 04 55 57.43 +59 42 52.9 V K87
2019-10-16 14:28:52 C 05 06 45.40 +61 30 50.9 V T05
2019-10-16 14:33:35 C 05 06 46.95 +61 31 06.4 V T05
2019-10-16 14:43:26 C 05 06 50.07 +61 31 36.3 V T05
2019-10-16 15:00:18 C 05 06 55.42 +61 32 28.5 V T05
2019-10-18 09:16:39 C 05 22 10.30 +63 42 16.2 V T08
2019-10-18 09:21:32 C 05 22 12.16 +63 42 31.7 V T08
2019-10-18 09:33:21 C 05 22 16.67 +63 43 07.8 V T08
2019-10-18 09:49:14 C 05 22 22.57 +63 43 58.4 V T08
2019-10-21 09:26:26 C 05 54 43.71 +67 15 23.7 V 703
2019-10-21 09:34:46 C 05 54 48.00 +67 15 47.2 V 703
2019-10-21 09:43:12 C 05 54 52.25 +67 16 10.4 V 703
2019-10-21 09:51:40 C 05 54 56.53 +67 16 34.8 V 703
2019-10-22 14:50:01 C 06 11 00.98 +68 36 11.7 V T08
2019-10-22 14:55:49 C 06 11 04.32 +68 36 26.7 V T08
2019-10-22 15:06:12 C 06 11 10.22 +68 36 54.4 V T08
2019-10-22 15:15:55 C 06 11 15.82 +68 37 20.4 V T08
2019-11-03 14:53:01 C 10 26 39.48 +72 46 01.3 V T08
2019-11-03 15:07:16 C 10 26 52.09 +72 45 43.0 V T08