496860 (1999 XL136)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6466062712 ± 2.36e-08
Semi-major axis (a)1.8188969549 AU ± 3.24e-09
Inclination (i)8.91393197° ± 6.25e-06
Long. of Asc. Node (Ω)269.95966586° ± 6.36e-06
Arg. of Perihelion (ω)275.45808233° ± 6.73e-06
Mean Anomaly (M)189.08923919° ± 1.97e-06
Mean Motion (n)0.4017909333°/day ± 1.07e-09
Perihelion dist (q)0.64278678 AU ± 4.29e-08
Aphelion dist (Q)2.99500713 AU ± 4.32e-08
Orbital Period2.45308244 yr ± 6.56e-09
Physical Parameters
H (abs. magnitude)19.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.338″
Uncertainty0
Orbit TypeApollo
MOID0.005064 AU
Observations Used285
Oppositions14
Arc Total1999-2022
First Observation Used1999-12-12
Last Observation Used2022-08-01
Observations (308)
Date Type RA Dec Mag Band Observatory
1999-12-12 06:06:22 C 05 01 43.50 +30 41 43.8 17.9 a 704
1999-12-12 06:47:36 C 05 01 36.94 +30 41 14.9 18.2 a 704
1999-12-12 07:14:14 C 05 01 32.72 +30 40 56.5 18.1 a 704
1999-12-12 07:46:41 C 05 01 27.55 +30 40 33.5 17.8 a 704
1999-12-12 08:11:27 C 05 01 23.61 +30 40 15.8 18.0 a 704
1999-12-13 04:42:55 C 04 58 14.52 +30 25 15.4 z 719
1999-12-13 04:44:39 C 04 58 14.22 +30 25 14.6 17.5 a 704
1999-12-13 04:50:47 C 04 58 13.22 +30 25 09.3 z 719
1999-12-13 05:05:48 C 04 58 10.70 +30 24 58.9 18.1 a 704
1999-12-13 05:27:07 C 04 58 07.13 +30 24 42.9 17.8 a 704
1999-12-13 05:30:39 C 04 58 06.64 +30 24 40.0 z 719
1999-12-13 05:33:18 C 04 58 06.21 +30 24 37.7 17.1 678
1999-12-13 05:40:14 C 04 58 04.97 +30 24 32.3 z 719
1999-12-13 05:48:13 C 04 58 03.63 +30 24 26.8 18.1 a 704
1999-12-13 05:48:52 C 04 58 03.77 +30 24 27.0 17.7 678
1999-12-13 05:54:22 C 04 58 02.79 +30 24 22.8 17.9 678
1999-12-13 05:58:55 C 04 58 02.03 +30 24 17.9 17.9 678
1999-12-13 06:03:25 C 04 58 01.32 +30 24 15.9 18.3 678
1999-12-13 06:09:25 C 04 58 00.05 +30 24 11.1 18.0 a 704
1999-12-13 08:03:46 C 04 57 41.20 +30 22 41.4 i 670
1999-12-13 08:51:08 C 04 57 33.43 +30 22 05.3 i 670
1999-12-13 20:27:22 C 04 55 41.45 +30 12 41.1 557
1999-12-13 20:29:43 C 04 55 40.97 +30 12 39.2 557
1999-12-13 20:32:04 C 04 55 40.62 +30 12 37.2 557
1999-12-14 06:56:20 C 04 53 55.30 +30 04 05.1 18.2 a 704
1999-12-14 07:17:36 C 04 53 51.51 +30 03 46.8 18.7 a 704
1999-12-14 07:38:53 C 04 53 47.69 +30 03 27.7 18.6 a 704
1999-12-14 08:00:20 C 04 53 44.00 +30 03 08.8 18.9 a 704
1999-12-14 08:21:35 C 04 53 40.15 +30 02 49.7 18.4 a 704
1999-12-15 02:53:55 C 04 50 26.45 +29 46 00.1 557
1999-12-15 02:59:58 C 04 50 25.32 +29 45 53.9 557
1999-12-15 03:01:59 C 04 50 25.03 +29 45 52.3 557
1999-12-15 03:40:20 C 04 50 20.98 +29 45 29.3 18.5 a 704
1999-12-15 04:35:28 C 04 50 10.73 +29 44 38.5 18.2 a 704
1999-12-15 05:02:45 C 04 50 05.64 +29 44 13.6 18.2 a 704
1999-12-15 05:28:53 C 04 50 00.73 +29 43 49.7 17.8 a 704
1999-12-15 05:33:40 C 04 49 59.87 +29 43 45.3 18.1 a 704
1999-12-15 06:01:52 C 04 49 54.52 +29 43 18.8 18.2 a 704
1999-12-15 06:30:09 C 04 49 49.25 +29 42 52.3 18.0 a 704
1999-12-15 06:56:19 C 04 49 44.34 +29 42 27.4 18.4 a 704
1999-12-15 07:21:00 C 04 49 39.66 +29 42 03.4 18.3 a 704
1999-12-15 07:37:12 C 04 49 36.86 +29 41 49.8 i 670
1999-12-15 09:16:12 C 04 49 18.41 +29 40 09.8 i 670
1999-12-16 05:03:17 C 04 45 40.94 +29 20 26.2 17.6 a 704
1999-12-16 05:24:42 C 04 45 36.69 +29 20 04.6 17.0 a 704
1999-12-16 05:46:07 C 04 45 32.45 +29 19 42.6 17.3 a 704
1999-12-16 06:07:28 C 04 45 28.20 +29 19 20.3 17.1 a 704
1999-12-16 06:31:12 C 04 45 23.49 +29 18 55.2 16.8 a 704
1999-12-16 11:20:46 C 04 44 29.76 +29 13 43.3 z 402
1999-12-16 11:22:33 C 04 44 29.32 +29 13 43.7 z 402