242708 (2005 UK1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6953808773 ± 1.80e-09
Semi-major axis (a)2.5015982312 AU ± 6.51e-10
Inclination (i)0.79207118° ± 4.25e-07
Long. of Asc. Node (Ω)180.29526416° ± 8.12e-05
Arg. of Perihelion (ω)345.92574804° ± 8.11e-05
Mean Anomaly (M)338.08434242° ± 4.37e-07
Mean Motion (n)0.2491070016°/day ± 9.72e-11
Perihelion dist (q)0.76203466 AU ± 4.51e-09
Aphelion dist (Q)4.24116180 AU ± 4.64e-09
Orbital Period3.95663822 yr ± 1.54e-09
Physical Parameters
H (abs. magnitude)18.12
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.194″
Uncertainty0
Orbit TypeApollo
MOID0.011058 AU
Observations Used984
Radar Obs Used4
Oppositions7
Arc Total2005-2026
First Observation Used2005-10-24
Last Observation Used2026-01-10
Observations (1143)
Date Type RA Dec Mag Band Observatory
2018-02-25 02:15:33 C 02 20 43.80 +12 56 51.8 U G96
2018-02-25 02:23:07 C 02 20 44.19 +12 56 54.1 U G96
2018-02-25 02:30:41 C 02 20 44.55 +12 56 56.1 U G96
2018-02-25 02:38:15 C 02 20 44.97 +12 56 58.5 U G96
2018-05-04 23:55:37 S 21 09 14.09 -12 12 58.8 L C51
2018-05-05 03:04:07 S 21 08 04.03 -12 18 06.1 L C51
2018-05-05 04:38:22 S 21 07 29.14 -12 20 38.8 L C51
2018-05-05 07:46:52 S 21 06 19.57 -12 25 41.7 L C51
2018-05-07 22:36:53 S 20 44 14.05 -13 57 46.4 L C51
2018-05-15 09:06:53 C 19 51 31.27 -17 02 36.7 U G96
2018-05-15 09:14:28 C 19 51 29.24 -17 02 43.0 U G96
2018-05-15 09:22:03 C 19 51 27.17 -17 02 48.6 U G96
2018-05-15 09:29:38 C 19 51 25.09 -17 02 52.9 U G96
2018-05-17 12:49:37 C 19 38 30.61 -17 39 46.0 U T08
2018-05-17 13:00:51 C 19 38 27.76 -17 39 53.8 U T08
2018-05-17 13:12:08 C 19 38 24.88 -17 40 01.4 U T08
2018-05-19 13:04:44 C 19 27 08.89 -18 09 36.2 U T05
2018-05-19 13:15:15 C 19 27 06.38 -18 09 42.4 U T05
2018-05-19 13:17:52 C 19 27 05.76 -18 09 43.9 U T05
2018-05-21 13:40:14 C 19 16 24.201 -18 35 28.58 U F51
2018-05-21 14:08:43 C 19 16 17.806 -18 35 42.57 U F51
2018-05-21 14:23:00 C 19 16 14.599 -18 35 49.50 U F51
2018-06-05 13:12:47 C 18 15 03.74 -20 21 06.1 U T05
2018-06-05 13:19:24 C 18 15 02.82 -20 21 07.4 U T05
2018-06-05 13:35:11 C 18 15 00.62 -20 21 09.5 U T05
2018-06-07 20:58:13 C 18 08 00.11 -20 29 03.5 o L52
2018-06-07 21:04:43 C 18 07 59.33 -20 29 04.9 o L52
2018-06-10 01:55:56 C 18 01 48.38 -20 34 57.6 q Y00
2018-06-10 02:06:38 C 18 01 47.05 -20 34 57.2 q Y00
2018-06-10 02:13:11 C 18 01 46.24 -20 34 57.5 q Y00
2018-06-13 17:44:36 C 17 52 35.59 -20 43 31.0 q D29
2018-06-13 18:04:58 C 17 52 33.38 -20 43 32.0 q D29
2018-06-13 18:25:19 C 17 52 31.36 -20 43 33.8 q D29
2018-07-14 14:40:53 C 17 17 24.34 -21 21 24.8 q D29
2018-07-14 15:01:15 C 17 17 24.12 -21 21 25.6 q D29
2018-07-14 15:21:37 C 17 17 23.96 -21 21 26.5 q D29
2021-10-28 04:25:49 C 04 09 53.63 +19 50 23.0 Z C95
2021-10-28 04:52:54 C 04 09 52.76 +19 50 19.5 Z C95
2021-11-04 16:17:10 C 04 03 19.229 +19 24 10.04 V P07
2021-11-04 17:26:41 C 04 03 15.886 +19 23 58.06 V P07
2021-11-04 18:21:24 C 04 03 13.226 +19 23 47.62 V P07
2021-11-04 19:08:58 C 04 03 10.896 +19 23 39.08 V P07
2021-11-04 19:10:39 C 04 03 10.853 +19 23 39.26 V P07
2021-11-04 20:01:40 C 04 03 08.477 +19 23 29.58 V P07
2021-11-07 06:52:57 C 04 00 17.06 +19 12 15.5 V G96
2021-11-07 07:00:24 C 04 00 16.66 +19 12 14.0 V G96
2021-11-07 07:07:52 C 04 00 16.24 +19 12 12.6 V G96
2021-11-07 07:15:18 C 04 00 15.85 +19 12 11.2 V G96
2021-11-07 07:49:07 C 04 00 13.99 +19 12 04.4 V 703
2021-11-07 07:56:44 C 04 00 13.59 +19 12 04.0 V 703
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-05-19 22:00:00 34179.035 0.1 Hz 2380 -1 -1
2014-05-19 22:35:00 94512912.66 4 us 2380 -1 -1
2014-05-19 23:38:00 94464208.72 1 us 2380 -1 -1
2014-05-19 23:38:00 28999.5578 0.03 Hz 2380 -1 -1
2014-05-21 23:49:00 94922618.01 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)