2018 DD4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4075703160 ± 7.86e-05
Semi-major axis (a)1.7807274036 AU ± 2.53e-04
Inclination (i)35.15343956° ± 2.53e-03
Long. of Asc. Node (Ω)318.29851760° ± 1.04e-03
Arg. of Perihelion (ω)199.29245796° ± 1.63e-03
Mean Anomaly (M)86.55760673° ± 2.50e-01
Mean Motion (n)0.4147783819°/day ± 8.85e-05
Perihelion dist (q)1.05495577 AU ± 2.05e-04
Aphelion dist (Q)2.50649903 AU ± 3.83e-04
Orbital Period2.37627207 yr ± 5.07e-04
Physical Parameters
H (abs. magnitude)20.33
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.319″
Uncertainty3
Orbit TypeAmor
MOID0.084599 AU
Observations Used33
Oppositions1
Arc Total2018-2018
First Observation Used2018-02-06
Last Observation Used2018-03-17
Observations (33)
Date Type RA Dec Mag Band Observatory
2018-02-06 03:50:21 C 04 09 00.59 +57 19 47.7 V G96
2018-02-06 04:06:00 C 04 09 02.99 +57 18 25.9 V G96
2018-02-06 04:13:48 C 04 09 04.17 +57 17 44.8 V G96
2018-02-27 03:49:39 C 05 08 24.87 +06 22 37.2 U G96
2018-02-27 03:57:17 C 05 08 25.51 +06 21 55.7 U G96
2018-02-27 04:04:57 C 05 08 26.14 +06 21 14.9 U G96
2018-02-27 04:12:37 C 05 08 26.80 +06 20 33.4 U G96
2018-02-27 19:14:29 C 05 09 47.06 +05 00 36.1 U J95
2018-02-27 19:33:29 C 05 09 48.64 +04 58 56.1 U J95
2018-02-27 19:52:25 C 05 09 50.09 +04 57 17.4 U J95
2018-02-27 20:11:12 C 05 09 51.60 +04 55 37.9 U J95
2018-03-01 00:38:47 C 05 12 19.32 +02 30 11.9 U 807
2018-03-01 00:44:54 C 05 12 19.80 +02 29 41.1 U 807
2018-03-01 00:50:28 C 05 12 20.24 +02 29 13.0 U 807
2018-03-03 00:47:03 C 05 16 21.95 -01 22 34.8 U 807
2018-03-03 00:53:02 C 05 16 22.42 -01 23 02.7 U 807
2018-03-03 00:59:13 C 05 16 22.89 -01 23 31.1 U 807
2018-03-04 17:52:29 C 05 19 42.97 -04 27 40.4 o K88
2018-03-04 17:59:27 C 05 19 43.51 -04 28 10.7 o K88
2018-03-06 02:50:58 C 05 22 19.85 -06 46 25.9 U I52
2018-03-06 02:51:33 C 05 22 19.95 -06 46 28.9 U I52
2018-03-06 02:52:09 C 05 22 20.00 -06 46 31.1 U I52
2018-03-06 02:52:45 C 05 22 20.06 -06 46 33.7 U I52
2018-03-09 03:49:33 C 05 27 56.41 -11 26 17.6 U I52
2018-03-09 03:50:40 C 05 27 56.46 -11 26 22.1 U I52
2018-03-09 03:52:51 C 05 27 56.55 -11 26 30.4 U I52
2018-03-12 08:26:25 C 05 33 37.10 -15 42 41.7 U 474
2018-03-12 08:29:49 C 05 33 37.27 -15 42 52.2 U 474
2018-03-12 08:40:55 C 05 33 38.08 -15 43 27.1 U 474
2018-03-12 08:44:19 C 05 33 38.31 -15 43 37.6 U 474
2018-03-17 08:35:46 C 05 42 10.96 -21 21 34.4 U 474
2018-03-17 08:40:00 C 05 42 11.26 -21 21 44.8 U 474
2018-03-17 08:44:14 C 05 42 11.54 -21 21 55.5 U 474