2011 DS9

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6422812188 ± 3.33e-08
Semi-major axis (a)2.6219099541 AU ± 1.57e-07
Inclination (i)3.69689921° ± 2.03e-06
Long. of Asc. Node (Ω)93.34434396° ± 6.43e-05
Arg. of Perihelion (ω)146.25814735° ± 6.17e-05
Mean Anomaly (M)152.41430502° ± 1.06e-04
Mean Motion (n)0.2321590498°/day ± 2.09e-08
Perihelion dist (q)0.93790643 AU ± 1.04e-07
Aphelion dist (Q)4.30591347 AU ± 2.72e-07
Orbital Period4.24547862 yr ± 3.82e-07
Physical Parameters
H (abs. magnitude)20.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.288″
Uncertainty0
Orbit TypeApollo
MOID0.003599 AU
Observations Used256
Oppositions3
Arc Total2011-2015
First Observation Used2011-02-25
Last Observation Used2015-01-16
Observations (270)
Date Type RA Dec Mag Band Observatory
2011-04-19 20:15:39 C 07 51 02.71 +54 12 25.5 u 160
2011-06-09 09:37:46 C 00 08 08.41 +01 02 33.8 o 807
2011-06-09 09:49:39 C 00 08 08.35 +01 02 23.9 o 807
2011-06-09 10:01:26 C 00 08 08.34 +01 02 14.2 o 807
2011-06-11 13:40:24 C 00 08 24.033 +00 21 42.83 L F51
2011-06-11 13:48:21 C 00 08 24.044 +00 21 36.97 L F51
2011-06-11 13:56:20 C 00 08 24.033 +00 21 31.01 L F51
2011-06-11 14:04:15 C 00 08 24.033 +00 21 25.16 L F51
2011-07-01 10:20:06 C 00 08 43.44 -04 13 04.1 o 695
2011-07-01 10:27:32 C 00 08 43.34 -04 13 07.8 o 695
2011-07-01 10:33:43 C 00 08 43.23 -04 13 11.3 o 695
2011-07-11 08:34:39 C 00 03 58.28 -06 20 32.9 o H21
2011-07-11 08:43:54 C 00 03 57.98 -06 20 38.6 o H21
2011-07-11 08:53:00 C 00 03 57.65 -06 20 43.3 o H21
2011-07-25 06:22:16 C 23 49 26.32 -09 36 41.9 o 807
2011-07-25 06:51:04 C 23 49 24.53 -09 36 59.4 o 807
2014-12-19 14:39:13 C 08 11 56.755 +21 29 29.07 V T12
2014-12-19 14:55:58 C 08 11 56.216 +21 29 31.81 V T12
2015-01-16 13:07:34 C 07 39 51.483 +23 39 43.80 V T12
2015-01-16 13:18:17 C 07 39 50.810 +23 39 45.96 V T12