2018 OA1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5070880072 ± 1.80e-05
Semi-major axis (a)2.1526215694 AU ± 7.91e-05
Inclination (i)10.16421084° ± 1.98e-04
Long. of Asc. Node (Ω)301.97023384° ± 1.08e-04
Arg. of Perihelion (ω)356.79305045° ± 2.15e-04
Mean Anomaly (M)117.94669772° ± 4.68e-02
Mean Motion (n)0.3120762687°/day ± 1.72e-05
Perihelion dist (q)1.06105299 AU ± 5.50e-05
Aphelion dist (Q)3.24419015 AU ± 1.25e-04
Orbital Period3.15828655 yr ± 1.74e-04
Physical Parameters
H (abs. magnitude)24.23
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.155″
Uncertainty2
Orbit TypeAmor
MOID0.043922 AU
Observations Used20
Oppositions1
Arc Total2018-2018
First Observation Used2018-07-23
Last Observation Used2018-10-12
Observations (21)
Date Type RA Dec Mag Band Observatory
2018-07-23 13:17:06 C 23 48 32.009 +04 10 45.93 U F52
2018-07-23 13:32:20 C 23 48 32.750 +04 12 31.99 U F52
2018-07-23 14:05:40 C 23 48 34.353 +04 16 22.78 U F52
2018-07-24 00:57:32 C 23 49 25.61 +05 29 40.5 V L01
2018-07-24 00:59:43 C 23 49 26.08 +05 29 54.0 V 204
2018-07-24 01:00:55 C 23 49 25.77 +05 30 02.5 V L01
2018-07-24 01:04:58 C 23 49 26.01 +05 30 30.4 V L01
2018-07-24 01:08:42 C 23 49 26.21 +05 30 54.9 V L01
2018-07-24 01:31:53 C 23 49 27.86 +05 33 29.4 V 204
2018-07-25 07:30:21 C 23 51 32.68 +08 45 15.7 u H21
2018-07-25 07:39:24 C 23 51 33.08 +08 46 10.9 u H21
2018-07-25 07:51:06 C 23 51 33.62 +08 47 22.9 u H21
2018-08-12 11:00:23 C 00 01 24.782 +32 49 54.73 U F51
2018-08-12 11:17:51 C 00 01 24.386 +32 50 22.81 U F51
2018-08-12 11:52:52 C 00 01 23.492 +32 51 18.73 U F51
2018-08-13 08:44:49 C 00 01 10.28 +33 22 15.3 u H21
2018-08-13 08:53:53 C 00 01 10.07 +33 22 28.5 u H21
2018-08-13 09:03:39 C 00 01 09.84 +33 22 42.5 u H21
2018-08-14 12:34:27 C 00 00 51.414 +34 01 02.07 V T12
2018-08-14 12:37:05 C 00 00 51.326 +34 01 05.60 V T12
2018-10-12 08:12:52 C 23 30 32.098 +29 50 51.48 V T12