1999 LW1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6820916595 ± 5.45e-08
Semi-major axis (a)1.4380099398 AU ± 3.02e-09
Inclination (i)6.66996823° ± 9.33e-06
Long. of Asc. Node (Ω)204.51663540° ± 1.17e-04
Arg. of Perihelion (ω)168.63353215° ± 1.22e-04
Mean Anomaly (M)84.46555967° ± 4.39e-06
Mean Motion (n)0.5715700241°/day ± 1.80e-09
Perihelion dist (q)0.45715535 AU ± 7.84e-08
Aphelion dist (Q)2.41886453 AU ± 7.86e-08
Orbital Period1.72441913 yr ± 5.42e-09
Physical Parameters
H (abs. magnitude)20.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.435″
Uncertainty0
Orbit TypeApollo
MOID0.099891 AU
Observations Used73
Oppositions10
Arc Total1999-2023
First Observation Used1999-06-07
Last Observation Used2023-04-29
Observations (80)
Date Type RA Dec Mag Band Observatory
2017-01-30 13:21:22 C 10 59 39.584 -12 31 33.47 L F51
2017-01-30 13:38:05 C 10 59 36.873 -12 31 13.94 L F51
2017-01-31 00:52:56 C 10 57 51.42 -12 17 53.4 U K92
2017-01-31 00:59:19 C 10 57 50.39 -12 17 46.0 U K92
2017-01-31 01:05:46 C 10 57 49.34 -12 17 38.6 U K92
2017-01-31 01:12:10 C 10 57 48.29 -12 17 31.1 U K92
2017-01-31 09:25:22 C 10 56 32.140 -12 08 08.53 U 568
2017-01-31 09:26:47 C 10 56 31.914 -12 08 06.90 U 568
2017-01-31 09:28:12 C 10 56 31.685 -12 08 05.23 U 568
2017-02-02 12:06:02 C 10 48 38.804 -11 07 40.71 L F51
2017-02-02 12:22:58 C 10 48 36.106 -11 07 20.34 L F51
2017-02-02 12:39:53 C 10 48 33.409 -11 06 59.65 L F51
2017-02-02 12:56:49 C 10 48 30.703 -11 06 39.13 L F51
2017-02-25 06:39:22 C 09 39 48.50 -00 15 22.2 o 691
2017-02-25 06:53:20 C 09 39 47.24 -00 15 07.5 o 691
2017-02-25 07:07:19 C 09 39 45.95 -00 14 53.4 o 691
2018-05-25 10:05:01 C 18 19 22.57 -00 22 48.0 o 691
2018-05-25 10:16:45 C 18 19 23.02 -00 22 12.4 o 691
2018-05-25 10:28:40 C 18 19 23.51 -00 21 36.3 o 691
2018-06-09 12:16:43 C 19 03 36.84 +46 21 52.1 U T08
2018-06-09 12:30:12 C 19 03 41.66 +46 25 25.7 U T08
2018-06-09 12:43:37 C 19 03 46.49 +46 28 59.0 U T08
2018-06-09 12:57:04 C 19 03 51.35 +46 32 32.3 U T08
2018-06-10 00:03:07 C 19 08 36.98 +49 31 31.9 q 157
2018-06-10 00:05:15 C 19 08 37.92 +49 32 06.9 q 157
2018-06-10 00:07:22 C 19 08 38.86 +49 32 41.8 q 157
2018-06-11 22:30:15 S 19 39 55.901 +62 40 24.82 L C51
2023-04-29 06:03:28 C 14 36 12.47 -11 37 24.0 V 807
2023-04-29 06:12:04 C 14 36 11.69 -11 37 18.8 V 807
2023-04-29 06:20:15 C 14 36 10.96 -11 37 14.4 V 807