2018 NN

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3151600376 ± 7.15e-08
Semi-major axis (a)1.8576597435 AU ± 1.49e-08
Inclination (i)10.07693910° ± 6.18e-06
Long. of Asc. Node (Ω)297.58213293° ± 1.15e-05
Arg. of Perihelion (ω)344.66302835° ± 2.38e-05
Mean Anomaly (M)332.54445050° ± 1.17e-05
Mean Motion (n)0.3892808335°/day ± 4.70e-09
Perihelion dist (q)1.27219963 AU ± 1.33e-07
Aphelion dist (Q)2.44311986 AU ± 1.34e-07
Orbital Period2.53191578 yr ± 3.05e-08
Physical Parameters
H (abs. magnitude)20.33
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.266″
Uncertainty0
Orbit TypeAmor
MOID0.257712 AU
Observations Used146
Oppositions6
Arc Total2013-2023
First Observation Used2013-08-27
Last Observation Used2023-03-20
Observations (153)
Date Type RA Dec Mag Band Observatory
2018-08-12 12:19:51 C 20 43 35.08 -03 21 52.9 U T05
2018-08-12 12:35:21 C 20 43 34.57 -03 21 41.4 U T05
2018-08-22 02:24:26 C 20 40 08.69 -00 44 44.7 u H21
2018-08-22 02:30:50 C 20 40 08.61 -00 44 41.1 u H21
2018-08-22 02:39:46 C 20 40 08.50 -00 44 36.1 u H21
2018-08-23 04:51:45 C 20 39 58.23 -00 30 42.4 q H21
2018-08-23 05:09:44 C 20 39 58.04 -00 30 33.4 20.0 q H21
2018-08-31 04:28:06 C 20 40 17.77 +00 50 02.6 u H21
2018-08-31 04:38:38 C 20 40 17.82 +00 50 06.3 u H21
2018-08-31 04:53:38 C 20 40 17.84 +00 50 11.4 u H21
2018-08-31 05:49:10 C 20 40 18.49 +00 50 31.6 V I52
2018-08-31 06:16:56 C 20 40 18.59 +00 50 40.7 V I52
2018-08-31 06:37:30 C 20 40 18.67 +00 50 47.7 V I52
2018-08-31 06:53:59 C 20 40 18.70 +00 50 53.1 V I52
2018-09-02 03:56:59 C 20 40 46.85 +01 05 04.3 V H21
2018-09-02 04:04:57 C 20 40 46.90 +01 05 06.7 V H21
2018-09-02 04:12:53 C 20 40 46.95 +01 05 08.9 V H21
2018-09-04 04:10:57 C 20 41 25.74 +01 18 38.0 V H21
2018-09-04 04:22:16 C 20 41 25.89 +01 18 40.5 V H21
2018-09-04 04:33:32 C 20 41 25.98 +01 18 43.9 V H21
2018-09-04 06:10:02 C 20 41 27.45 +01 19 11.3 V I52
2018-09-04 06:19:34 C 20 41 27.55 +01 19 14.3 V I52
2018-09-04 06:29:15 C 20 41 27.62 +01 19 16.4 V I52
2018-09-04 06:40:42 C 20 41 27.67 +01 19 19.1 V I52
2018-09-10 06:32:49 C 20 44 21.50 +01 50 46.1 V I52
2018-09-10 06:42:08 C 20 44 21.71 +01 50 48.0 V I52
2018-09-10 06:51:27 C 20 44 21.86 +01 50 49.7 V I52
2018-09-10 07:00:47 C 20 44 22.05 +01 50 52.3 V I52
2018-09-11 03:40:38 C 20 44 54.24 +01 54 25.7 20.5 q H21
2018-09-11 03:52:50 C 20 44 54.53 +01 54 28.0 q H21
2018-09-12 03:09:53 C 20 45 32.78 +01 58 19.3 G96
2018-09-12 03:19:52 C 20 45 33.04 +01 58 20.8 G96
2018-09-12 03:29:51 C 20 45 33.27 +01 58 22.3 G96
2018-09-12 03:33:12 C 20 45 32.94 +01 58 21.4 u H21
2018-09-12 03:39:11 C 20 45 33.08 +01 58 22.3 u H21
2018-09-12 03:39:50 C 20 45 33.50 +01 58 24.0 G96
2018-09-12 03:46:51 C 20 45 33.28 +01 58 24.3 u H21
2018-09-14 03:26:43 C 20 46 56.99 +02 05 31.2 20.6 q H21
2018-09-14 03:37:22 C 20 46 57.28 +02 05 33.0 20.6 q H21
2018-09-14 03:48:00 C 20 46 57.54 +02 05 34.4 20.4 q H21
2018-09-17 05:07:24 C 20 49 22.36 +02 14 57.8 o 691
2018-09-17 05:27:27 C 20 49 22.94 +02 14 59.9 o 691
2018-09-28 03:22:05 C 21 00 20.34 +02 38 10.8 o 691
2018-09-28 03:54:54 C 21 00 21.79 +02 38 12.5 o 691
2018-10-06 05:33:06 C 21 10 23.90 +02 50 46.6 o 691
2018-10-06 06:05:12 C 21 10 25.58 +02 50 49.1 o 691
2018-10-06 06:37:20 C 21 10 27.29 +02 50 50.8 o 691
2018-10-12 00:56:58 C 21 18 28.58 +03 00 01.2 u H21
2018-10-12 01:09:29 C 21 18 29.31 +03 00 02.5 u H21
2018-10-12 01:27:54 C 21 18 30.36 +03 00 03.6 u H21