2018 DA4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7877206000
Semi-major axis (a)1.3469915000 AU
Inclination (i)22.05592000°
Long. of Asc. Node (Ω)357.72735000°
Arg. of Perihelion (ω)24.77298000°
Mean Anomaly (M)20.05043000°
Mean Motion (n)0.6304588900°/day
Perihelion dist (q)0.28593850 AU
Aphelion dist (Q)2.40804450 AU
Orbital Period1.56331780 yr
Physical Parameters
H (abs. magnitude)20.63
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.590″
Uncertainty7
Orbit TypeApollo
MOID0.168369 AU
Observations Used80
Oppositions1
Arc Total
First Observation Used
Last Observation Used2018-03-20
Observations (81)
Date Type RA Dec Mag Band Observatory
2018-02-23 08:37:30 C 13 21 18.29 +26 10 58.2 V 703
2018-02-23 08:52:44 C 13 21 10.46 +26 11 03.9 V 703
2018-02-23 09:00:21 C 13 21 06.53 +26 11 05.8 V 703
2018-02-26 07:33:58 C 12 46 28.48 +26 12 52.8 U G96
2018-02-26 07:41:33 C 12 46 24.90 +26 12 51.4 U G96
2018-02-26 07:49:10 C 12 46 21.28 +26 12 50.1 U G96
2018-02-26 07:56:46 C 12 46 17.72 +26 12 48.5 U G96
2018-02-26 09:47:27 C 12 45 24.66 +26 12 21.3 u H21
2018-02-26 09:51:46 C 12 45 22.63 +26 12 20.5 u H21
2018-02-26 09:58:45 C 12 45 19.35 +26 12 18.8 u H21
2018-02-26 10:19:27 C 12 45 10.23 +26 12 18.9 U I52
2018-02-26 10:20:02 C 12 45 09.94 +26 12 18.5 U I52
2018-02-26 10:20:39 C 12 45 09.66 +26 12 18.5 U I52
2018-02-26 10:26:13 C 12 45 07.03 +26 12 16.9 U I52
2018-02-26 10:39:19 C 12 45 00.48 +26 12 10.3 q H36
2018-02-26 10:48:25 C 12 44 56.12 +26 12 07.5 q H36
2018-02-26 10:57:29 C 12 44 51.83 +26 12 05.1 q H36
2018-02-26 12:47:47 C 12 44 00.49 +26 11 40.8 U G96
2018-02-26 12:48:22 C 12 44 00.21 +26 11 40.8 U G96
2018-02-26 12:48:57 C 12 43 59.95 +26 11 40.7 U G96
2018-02-26 12:49:32 C 12 43 59.65 +26 11 40.8 U G96
2018-02-27 05:21:25 C 12 36 31.16 +26 06 55.8 o 291
2018-02-27 05:24:34 C 12 36 29.73 +26 06 55.1 o 291
2018-02-27 05:27:42 C 12 36 28.29 +26 06 53.9 o 291
2018-02-27 07:23:39 C 12 35 35.72 +26 06 18.9 U I52
2018-02-27 07:24:16 C 12 35 35.49 +26 06 18.4 U I52
2018-02-27 07:24:51 C 12 35 35.18 +26 06 18.1 U I52
2018-02-27 07:25:27 C 12 35 34.88 +26 06 18.1 U I52
2018-02-27 08:06:51 C 12 35 15.38 +26 06 02.2 u H21
2018-02-27 08:10:34 C 12 35 13.69 +26 06 00.9 u H21
2018-02-27 08:14:35 C 12 35 11.86 +26 05 59.4 u H21
2018-02-27 12:42:37 C 12 33 11.50 +26 04 23.8 U G96
2018-02-27 12:43:12 C 12 33 11.22 +26 04 23.0 U G96
2018-02-27 12:45:51 C 12 33 10.04 +26 04 22.5 U G96
2018-02-27 12:46:26 C 12 33 09.78 +26 04 22.1 U G96
2018-02-27 23:13:41 C 12 28 37.26 +26 00 10.5 U K38
2018-02-28 00:00:12 C 12 28 16.78 +25 59 51.3 U K38
2018-02-28 00:46:42 C 12 27 56.37 +25 59 31.7 U K38
2018-03-01 06:07:11 C 12 15 37.49 +25 45 36.9 U 807
2018-03-01 06:12:16 C 12 15 35.40 +25 45 34.3 U 807
2018-03-01 06:17:00 C 12 15 33.43 +25 45 31.8 U 807
2018-03-06 05:05:51 C 11 33 21.86 +24 19 06.2 U I52
2018-03-06 05:06:12 C 11 33 21.70 +24 19 06.1 U I52
2018-03-06 05:10:34 C 11 33 20.33 +24 19 02.0 U I52
2018-03-06 05:14:54 C 11 33 19.04 +24 18 59.0 U I52
2018-03-06 07:49:23 C 11 32 30.55 +24 16 48.1 u H21
2018-03-06 07:55:47 C 11 32 28.56 +24 16 42.6 u H21
2018-03-06 08:02:53 C 11 32 26.37 +24 16 36.6 u H21
2018-03-07 04:37:26 C 11 26 23.90 +23 59 07.2 U I52
2018-03-07 04:38:02 C 11 26 23.73 +23 59 06.8 U I52