2009 SD15

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.6237325102 ± 2.00e+00
Semi-major axis (a)	2.3438886669 AU ± 3.00e+00
Inclination (i)	2.91386972° ± 4.00e+00
Long. of Asc. Node (Ω)	355.83909106° ± 5.00e+00
Arg. of Perihelion (ω)	304.96061197° ± 6.00e+00
Mean Anomaly (M)	192.50733810° ± 4.96e+00
Mean Motion (n)	0.2746644600°/day ± 5.27e-01
Perihelion dist (q)	0.88192270 AU ± 4.82e+00
Aphelion dist (Q)	3.80582690 AU ± 6.76e+00
Orbital Period	3.58840630 yr ± 6.89e+00

Physical Parameters

H (abs. magnitude)	26.90
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-04-18
RMS Residual	0.303″
Uncertainty	4
Orbit Type	Apollo
MOID	0.006510 AU
Observations Used	13
Oppositions	1
Arc Total	2009-2009
First Observation Used	—
Last Observation Used	2009-09-25

Observations (15)

Date	Type	RA	Dec	Mag	Band	Observatory
2009-09-19 05:48:12	C	23 32 36.70	-04 08 28.8	–	r	G96
2009-09-19 05:54:31	C	23 32 39.26	-04 07 47.1	–	r	G96
2009-09-19 05:59:14	C	23 32 41.13	-04 07 15.2	–	r	G96
2009-09-19 06:03:56	C	23 32 43.08	-04 06 45.6	–	r	G96
2009-09-19 08:00:38	C	23 33 28.94	-03 54 15.4	–	r	G96
2009-09-19 08:03:06	C	23 33 29.95	-03 53 58.7	–	r	G96
2009-09-19 08:05:35	C	23 33 30.96	-03 53 42.7	–	r	G96
2009-09-19 08:07:59	C	23 33 31.86	-03 53 28.1	–	r	G96
2009-09-20 09:09:35	C	23 42 46.22	-01 36 56.0	–	r	G96
2009-09-20 09:11:08	C	23 42 46.65	-01 36 49.1	–	r	G96
2009-09-20 09:12:39	C	23 42 47.08	-01 36 42.0	–	r	G96
2009-09-20 09:14:09	C	23 42 47.55	-01 36 34.5	–	r	G96
2009-09-25 07:40:52	C	00 05 03.42	+03 49 57.0	–	o	H01
2009-09-25 07:52:32	C	00 05 04.45	+03 50 15.6	–	o	H01
2009-09-25 07:59:13	C	00 05 05.03	+03 50 26.2	–	o	H01