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
1999-12-16 11:24:24 C 04 44 29.08 +29 13 39.6 z 402
1999-12-17 01:30:27 C 04 41 41.31 +28 57 58.1 c 046
1999-12-17 01:33:30 C 04 41 40.72 +28 57 54.6 c 046
1999-12-17 01:35:41 C 04 41 40.20 +28 57 52.0 c 046
1999-12-17 01:37:11 C 04 41 39.91 +28 57 49.9 c 046
1999-12-25 10:47:56 C 03 50 56.88 +22 58 41.5 z 402
1999-12-25 10:49:46 C 03 50 56.31 +22 58 37.0 z 402
1999-12-25 10:51:35 C 03 50 55.69 +22 58 32.4 z 402
1999-12-27 14:00:19 C 03 33 54.90 +20 29 13.1 z 900
1999-12-27 14:10:59 C 03 33 51.10 +20 28 38.5 z 900
1999-12-28 02:50:21 C 03 29 23.47 +19 46 44.6 i 739
1999-12-28 02:51:24 C 03 29 23.01 +19 46 40.8 i 739
1999-12-28 02:52:22 C 03 29 22.87 +19 46 38.5 i 739
1999-12-29 11:28:00 C 03 17 15.25 +17 49 03.2 360
1999-12-29 11:30:29 C 03 17 14.27 +17 48 53.6 360
1999-12-29 11:32:45 C 03 17 13.39 +17 48 45.2 360
1999-12-29 23:08:19 C 03 12 40.48 +17 03 01.2 c 046
1999-12-29 23:10:11 C 03 12 39.69 +17 02 53.9 c 046
1999-12-29 23:11:40 C 03 12 39.10 +17 02 47.3 c 046
1999-12-29 23:13:39 C 03 12 38.34 +17 02 40.3 c 046
1999-12-29 23:18:44 C 03 12 36.27 +17 02 19.2 c 046
1999-12-30 12:14:36 C 03 07 27.68 +16 10 34.5 413
1999-12-30 12:17:07 C 03 07 26.64 +16 10 24.0 413
1999-12-30 19:58:22 C 03 04 20.42 +15 36 32.5 587
1999-12-30 20:02:57 C 03 04 18.49 +15 36 12.7 587
2000-01-02 18:11:38 C 02 33 39.75 +09 56 04.5 c 046
2000-01-02 18:13:14 C 02 33 38.92 +09 55 54.9 c 046
2000-01-02 18:14:28 C 02 33 38.33 +09 55 48.8 c 046
2000-01-02 18:15:28 C 02 33 37.81 +09 55 43.4 c 046
2000-01-03 05:03:54 C 02 28 32.35 +08 56 53.3 i 670
2000-01-03 05:54:23 C 02 28 07.91 +08 52 11.9 i 670
2000-01-03 19:16:39 C 02 21 46.26 +07 36 25.5 587
2000-01-03 19:20:00 C 02 21 44.60 +07 36 05.9 587
2000-01-03 19:24:10 C 02 21 42.56 +07 35 42.1 587
2000-01-03 19:29:28 C 02 21 39.49 +07 35 09.2 118
2000-01-03 19:35:28 C 02 21 36.54 +07 34 34.4 118
2000-01-03 19:41:19 C 02 21 33.52 +07 33 57.5 118
2000-01-05 01:31:49 C 02 06 50.70 +04 36 19.1 i 726
2000-01-05 01:36:51 C 02 06 48.10 +04 35 50.7 i 726
2000-01-05 01:45:50 C 02 06 43.34 +04 34 53.5 i 726
2000-01-05 01:46:40 C 02 06 43.79 +04 35 00.9 16.9 a 704
2000-01-05 01:51:16 C 02 06 40.79 +04 34 21.7 i 726
2000-01-05 02:08:47 C 02 06 32.29 +04 32 44.7 16.8 a 704
2000-01-05 02:30:35 C 02 06 20.93 +04 30 31.3 17.2 a 704
2000-01-05 02:52:21 C 02 06 09.56 +04 28 16.3 16.4 a 704
2000-01-05 03:13:53 C 02 05 58.34 +04 26 03.4 16.4 a 704
2000-01-05 19:29:03 C 01 57 40.17 +02 44 09.1 118
2000-01-05 19:32:39 C 01 57 38.24 +02 43 46.2 118
2000-01-06 03:28:22 C 01 53 31.52 +01 53 21.4 17.9 a 704
2000-01-06 03:49:37 C 01 53 20.21 +01 51 05.5 18.5 a 704