2018 NN4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5756461676 ± 2.92e-08
Semi-major axis (a)2.6781861715 AU ± 1.02e-07
Inclination (i)29.65842121° ± 8.99e-06
Long. of Asc. Node (Ω)290.85788799° ± 6.27e-06
Arg. of Perihelion (ω)341.02417322° ± 1.30e-05
Mean Anomaly (M)241.58848528° ± 3.62e-05
Mean Motion (n)0.2248801546°/day ± 1.29e-08
Perihelion dist (q)1.13649857 AU ± 8.94e-08
Aphelion dist (Q)4.21987378 AU ± 1.79e-07
Orbital Period4.38289579 yr ± 2.51e-07
Physical Parameters
H (abs. magnitude)18.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.292″
Uncertainty0
Orbit TypeAmor
MOID0.137520 AU
Observations Used184
Oppositions7
Arc Total2013-2022
First Observation Used2013-01-08
Last Observation Used2022-02-28
Observations (246)
Date Type RA Dec Mag Band Observatory
2018-09-02 04:13:24 C 17 58 29.65 +08 34 22.0 o 291
2018-09-02 04:15:52 C 17 58 29.94 +08 34 24.4 o 291
2018-09-02 04:18:16 C 17 58 30.23 +08 34 26.8 o 291
2018-09-07 03:59:17 C 18 12 45.73 +10 14 53.2 U I41
2018-09-07 04:00:35 C 18 12 45.89 +10 14 54.2 U I41
2018-09-08 03:30:00 C 18 15 28.26 +10 32 02.1 U I41
2018-09-08 05:05:14 C 18 15 38.86 +10 33 09.6 U I41
2018-09-16 02:35:04 C 18 36 35.19 +12 26 04.4 o 691
2018-09-16 02:37:33 C 18 36 35.45 +12 26 05.5 o 691
2018-10-06 04:58:50 C 19 25 21.919 +15 04 31.06 V T12
2018-10-21 06:46:59 C 19 59 49.593 +16 04 50.43 V F52
2018-10-21 07:05:05 C 19 59 51.265 +16 04 52.46 V F52
2018-11-06 01:48:00 C 20 34 55.95 +16 53 13.1 o 691
2018-11-06 02:14:07 C 20 34 58.32 +16 53 16.4 o 691
2018-11-06 02:39:59 C 20 35 00.68 +16 53 20.0 o 691
2018-11-07 02:14:15 C 20 37 10.17 +16 56 17.2 o 691
2018-11-07 02:38:50 C 20 37 12.37 +16 56 20.8 o 691
2018-11-07 03:02:47 C 20 37 14.55 +16 56 23.8 o 691
2018-11-13 02:27:36 C 20 50 18.82 +17 14 56.7 o 291
2018-11-13 02:45:04 C 20 50 20.40 +17 14 59.3 o 291
2018-11-18 03:01:07 C 21 01 13.38 +17 31 30.6 o 695
2018-11-18 03:18:25 C 21 01 14.91 +17 31 33.0 o 695
2018-11-18 03:35:43 C 21 01 16.46 +17 31 35.4 o 695
2021-12-16 15:14:50 C 09 33 24.490 +01 42 53.76 V F51
2022-01-06 12:17:19 C 09 22 15.903 -00 35 46.83 V F52
2022-01-27 07:51:04 C 09 00 57.52 -02 08 16.2 o 291
2022-01-27 08:12:38 C 09 00 56.45 -02 08 18.5 o 291
2022-01-30 09:02:18 C 08 57 13.377 -02 16 37.29 V F52
2022-01-30 09:37:26 C 08 57 11.509 -02 16 40.36 V F52
2022-01-30 09:55:01 C 08 57 10.567 -02 16 41.96 V F52
2022-02-09 06:53:38 C 08 44 38.046 -02 33 38.75 V F52
2022-02-09 07:10:08 C 08 44 37.181 -02 33 39.41 V F52
2022-02-09 07:26:44 C 08 44 36.329 -02 33 40.14 V F52
2022-02-09 07:43:18 C 08 44 35.416 -02 33 40.99 V F52
2022-02-25 00:51:01 C 08 25 24.93 -02 31 30.2 V 807
2022-02-25 01:14:26 C 08 25 23.85 -02 31 29.2 V 807
2022-02-25 01:37:51 C 08 25 22.71 -02 31 28.1 V 807
2022-02-26 00:38:22 C 08 24 19.04 -02 30 21.5 V 807
2022-02-26 00:59:40 C 08 24 18.06 -02 30 21.0 V 807
2022-02-26 01:20:58 C 08 24 17.04 -02 30 19.8 V 807
2022-02-27 00:54:19 C 08 23 12.95 -02 29 07.0 V 807
2022-02-27 01:13:29 C 08 23 12.08 -02 29 05.7 V 807
2022-02-27 01:32:38 C 08 23 11.20 -02 29 04.2 V 807
2022-02-28 00:44:38 C 08 22 09.27 -02 27 46.0 V 807
2022-02-28 01:05:55 C 08 22 08.31 -02 27 45.3 V 807
2022-02-28 01:27:13 C 08 22 07.36 -02 27 43.6 V 807