523967 (1998 YR11)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4763393484 ± 3.16e-08
Semi-major axis (a)2.0296371363 AU ± 1.14e-09
Inclination (i)59.72868295° ± 1.41e-05
Long. of Asc. Node (Ω)112.02079938° ± 3.08e-06
Arg. of Perihelion (ω)320.91730749° ± 1.33e-05
Mean Anomaly (M)123.54643152° ± 4.31e-06
Mean Motion (n)0.3408667778°/day ± 2.86e-10
Perihelion dist (q)1.06284111 AU ± 6.42e-08
Aphelion dist (Q)2.99643317 AU ± 6.42e-08
Orbital Period2.89152932 yr ± 2.43e-09
Physical Parameters
H (abs. magnitude)18.12
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.321″
Uncertainty0
Orbit TypeAmor
MOID0.156332 AU
Observations Used265
Oppositions18
Arc Total1998-2025
First Observation Used1998-12-23
Last Observation Used2025-01-24
Observations (278)
Date Type RA Dec Mag Band Observatory
1998-12-23 10:02:39 C 11 15 02.47 +00 41 46.3 18.4 a 704
1998-12-23 10:17:46 C 11 15 03.90 +00 43 10.3 18.8 a 704
1998-12-23 10:32:52 C 11 15 05.26 +00 44 35.5 19.1 a 704
1998-12-23 10:48:00 C 11 15 06.72 +00 46 00.7 19.2 a 704
1998-12-24 02:27:21 C 11 16 37.80 +02 14 44.2 557
1998-12-24 02:27:40 C 11 16 37.93 +02 14 46.0 046
1998-12-24 02:28:27 C 11 16 37.91 +02 14 50.7 557
1998-12-24 02:28:57 C 11 16 38.03 +02 14 53.2 046
1998-12-24 02:30:42 C 11 16 38.16 +02 15 03.4 557
1998-12-24 02:31:03 C 11 16 38.21 +02 15 06.3 046
1998-12-24 02:33:30 C 11 16 38.43 +02 15 20.0 046
1998-12-24 02:35:02 C 11 16 38.61 +02 15 27.6 046
1998-12-25 17:15:00 C 11 20 28.32 +06 05 18.1 422
1998-12-25 17:15:46 C 11 20 28.40 +06 05 22.7 422
1998-12-25 17:16:35 C 11 20 28.43 +06 05 27.5 422
1998-12-25 17:17:32 C 11 20 28.50 +06 05 33.4 422
1998-12-27 18:11:13 C 11 25 28.10 +11 14 00.7 z 402
1998-12-27 18:13:14 C 11 25 28.26 +11 14 14.2 z 402
1998-12-27 18:15:13 C 11 25 28.43 +11 14 26.4 z 402
1998-12-27 18:17:13 C 11 25 28.67 +11 14 39.9 z 402
1998-12-28 17:23:34 C 11 27 54.29 +13 47 04.7 z 402
1998-12-28 17:25:35 C 11 27 54.53 +13 47 21.9 z 402
1998-12-28 17:27:35 C 11 27 54.72 +13 47 32.2 z 402
1998-12-28 17:29:35 C 11 27 54.89 +13 47 45.8 z 402
1998-12-29 02:38:44 C 11 28 52.76 +14 49 05.3 557
1998-12-29 02:47:44 C 11 28 53.68 +14 50 06.3 557
1998-12-29 02:53:44 C 11 28 54.29 +14 50 46.5 557
1999-01-22 04:03:56 C 12 51 02.39 +69 58 42.5 z 071
1999-01-22 04:07:39 C 12 51 02.98 +69 58 54.3 z 071
1999-01-25 03:19:30 C 13 05 45.89 +73 34 14.7 z 071
1999-01-25 03:30:42 C 13 05 48.62 +73 34 46.5 z 071
2015-06-15 11:27:50 C 20 40 40.075 -17 12 49.00 V F51
2015-06-15 12:16:27 C 20 40 38.614 -17 13 25.21 V F51
2015-06-21 13:30:10 C 20 35 47.277 -19 08 54.96 V F51
2015-06-26 13:01:17 C 20 30 37.668 -20 54 54.44 L F51
2015-06-26 13:17:07 C 20 30 36.865 -20 55 09.00 L F51
2015-06-26 13:32:57 C 20 30 36.100 -20 55 23.51 L F51
2015-06-26 13:48:46 C 20 30 35.317 -20 55 38.18 L F51
2015-06-28 13:53:41 C 20 28 12.126 -21 40 55.53 V F51
2015-06-28 14:09:30 C 20 28 11.271 -21 41 10.82 V F51
2015-06-28 14:25:18 C 20 28 10.439 -21 41 25.91 V F51
2015-07-25 09:32:39 C 19 40 07.899 -33 04 06.66 V F51
2018-07-10 11:35:20 C 21 11 13.881 -38 08 29.19 U F51
2018-07-10 11:48:22 C 21 11 13.101 -38 08 49.32 U F51
2018-07-10 12:01:24 C 21 11 12.345 -38 09 09.08 U F51
2018-07-10 12:14:24 C 21 11 11.582 -38 09 28.99 U F51
2018-09-07 01:31:37 C 18 30 46.60 -62 20 47.7 U 807
2018-09-07 01:38:50 C 18 30 45.93 -62 20 49.7 U 807
2019-03-01 02:26:22 C 03 03 49.53 -01 01 17.5 V 703
2019-03-01 02:34:39 C 03 03 50.47 -01 00 52.7 V 703