310842 (2003 AK18)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3842035592 ± 2.00e+00
Semi-major axis (a)0.8769785384 AU ± 3.00e+00
Inclination (i)7.40228421° ± 4.00e+00
Long. of Asc. Node (Ω)301.53854445° ± 5.00e+00
Arg. of Perihelion (ω)23.95386866° ± 6.00e+00
Mean Anomaly (M)64.71175149° ± 8.85e-06
Mean Motion (n)1.2001314814°/day ± 6.16e+00
Perihelion dist (q)0.54004026 AU ± 2.55e+00
Aphelion dist (Q)1.21391681 AU ± 4.51e+00
Orbital Period0.82126525 yr ± 4.21e+00
NGA Modelr2
A2-3.79610414e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.78
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-28
RMS Residual0.315″
Uncertainty0
Orbit TypeAten
MOID0.056304 AU
Observations Used606
Oppositions5
Arc Total2003-2026
First Observation Used2003-01-07
Last Observation Used2026-01-12
Observations (639)
Date Type RA Dec Mag Band Observatory
2022-03-30 22:08:29 S 00 36 34.982 -86 39 07.99 L C51
2022-03-30 23:42:33 S 00 41 11.676 -86 27 49.39 L C51
2022-03-31 01:16:37 S 00 45 21.497 -86 16 25.25 L C51
2022-03-31 02:50:41 S 00 49 07.589 -86 04 56.17 L C51
2025-12-17 13:44:41 C 11 55 20.975 +11 28 27.55 X F52
2025-12-17 14:16:26 C 11 55 18.524 +11 28 22.49 X F52
2025-12-17 14:32:19 C 11 55 17.290 +11 28 19.85 X F52
2025-12-21 10:54:47 C 11 48 18.889 +11 12 45.79 V 703
2025-12-21 11:01:19 C 11 48 18.238 +11 12 45.29 V 703
2025-12-21 11:04:34 C 11 48 17.892 +11 12 45.40 V 703
2025-12-24 13:48:09 C 11 41 47.900 +11 01 53.98 X F51
2025-12-24 14:05:33 C 11 41 46.132 +11 01 51.82 X F51
2025-12-24 14:22:59 C 11 41 44.362 +11 01 49.69 X F51
2025-12-24 14:40:31 C 11 41 42.567 +11 01 47.48 X F51
2025-12-27 13:18:37 C 11 34 40.630 +10 53 05.35 V T05
2025-12-27 13:27:46 C 11 34 39.583 +10 53 03.95 V T05
2025-12-27 13:34:20 C 11 34 38.822 +10 53 03.77 V T05
2025-12-27 13:42:11 C 11 34 37.934 +10 53 02.80 V T05
2026-01-02 00:05:38 C 11 18 51.233 +10 42 28.66 V M22
2026-01-02 00:10:13 C 11 18 50.558 +10 42 28.91 V M22
2026-01-02 00:18:13 C 11 18 49.423 +10 42 28.37 V M22
2026-01-02 00:37:01 C 11 18 46.738 +10 42 27.47 V M22
2026-01-02 11:42:49 C 11 17 15.149 +10 41 17.23 V T08
2026-01-02 11:56:12 C 11 17 13.176 +10 41 17.23 V T08
2026-01-02 12:31:54 C 11 17 07.865 +10 41 16.19 V T08
2026-01-02 12:35:55 C 11 17 07.310 +10 41 15.68 V T08
2026-01-11 01:09:14 C 10 42 31.598 +10 39 39.85 V M22
2026-01-11 01:15:11 C 10 42 30.338 +10 39 40.10 V M22
2026-01-11 01:20:24 C 10 42 29.232 +10 39 40.07 V M22
2026-01-11 14:38:41 C 10 39 47.092 +10 39 29.25 X F51
2026-01-11 14:58:28 C 10 39 42.837 +10 39 29.79 X F51
2026-01-11 15:37:54 C 10 39 34.375 +10 39 30.60 X F51
2026-01-12 00:24:39 C 10 37 48.374 +10 39 29.90 X 033
2026-01-12 00:25:16 C 10 37 48.205 +10 39 29.50 X 033
2026-01-12 00:25:55 C 10 37 48.086 +10 39 29.80 X 033
2026-01-12 14:03:43 C 10 34 56.014 +10 40 22.26 V T08
2026-01-12 14:08:26 C 10 34 54.953 +10 40 22.62 V T08
2026-01-12 14:16:59 C 10 34 53.052 +10 40 22.87 V T08
2026-01-12 14:31:44 C 10 34 49.764 +10 40 23.52 V T08
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2011-12-18 14:55:00 141593.549 0.2 Hz 2380 -1 -1
2011-12-18 15:25:00 87814903.72 0.5 us 2380 -1 -1
2011-12-18 15:25:00 140670.6971 0.2 Hz 2380 -1 -1
2011-12-29 03:40:00 -36324.799 4 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)