2018 BT1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3095177247 ± 2.93e-07
Semi-major axis (a)0.8651184849 AU ± 3.74e-09
Inclination (i)29.90775648° ± 2.49e-05
Long. of Asc. Node (Ω)121.00757771° ± 1.30e-06
Arg. of Perihelion (ω)140.69396865° ± 2.15e-05
Mean Anomaly (M)151.90307827° ± 5.48e-05
Mean Motion (n)1.2248950758°/day ± 7.95e-09
Perihelion dist (q)0.59734898 AU ± 2.53e-07
Aphelion dist (Q)1.13288799 AU ± 2.53e-07
Orbital Period0.80466181 yr ± 5.22e-09
Physical Parameters
H (abs. magnitude)23.06
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.382″
Uncertainty0
Orbit TypeAten
MOID0.038841 AU
Observations Used134
Radar Obs Used1
Oppositions1
Arc Total2018-2026
First Observation Used2018-01-17
Last Observation Used2026-01-10
Observations (140)
Date Type RA Dec Mag Band Observatory
2018-01-22 06:23:16 C 09 45 46.74 +35 56 19.1 U I52
2018-01-22 06:25:46 C 09 45 46.56 +35 57 43.7 U 703
2018-01-22 06:33:33 C 09 45 46.08 +36 02 06.7 U 703
2018-01-22 06:41:21 C 09 45 45.49 +36 06 29.6 U 703
2018-01-23 20:45:34 C 09 44 39.22 +58 10 14.3 q L18
2018-01-23 20:46:45 C 09 44 39.15 +58 10 56.9 q L18
2018-01-23 20:47:57 C 09 44 38.91 +58 11 38.6 q L18
2018-01-24 02:46:17 C 09 43 55.91 +61 35 29.0 U 204
2018-01-24 02:48:54 C 09 43 55.52 +61 36 56.2 U 204
2018-01-24 02:51:31 C 09 43 55.14 +61 38 23.4 U 204
2018-01-24 02:54:08 C 09 43 54.77 +61 39 50.7 U 204
2018-01-24 02:56:44 C 09 43 54.37 +61 41 17.8 U 204
2018-01-24 05:38:26 C 09 44 15.00 +63 11 28.2 U I52
2018-01-24 05:40:21 C 09 44 14.72 +63 12 32.8 U I52
2018-01-24 05:40:31 C 09 44 14.69 +63 12 39.2 U I52
2018-01-24 05:40:43 C 09 44 14.67 +63 12 44.9 U I52
2018-01-27 20:02:47 C 21 57 35.25 +82 15 03.0 U 204
2018-01-27 20:14:28 C 21 57 32.27 +82 11 59.0 U 204
2022-01-22 02:33:12 C 04 27 39.99 -01 09 14.4 V I52
2022-01-22 02:35:08 C 04 27 39.14 -01 08 59.0 V I52
2022-01-22 02:37:05 C 04 27 38.23 -01 08 42.7 V I52
2022-01-22 02:39:01 C 04 27 37.39 -01 08 27.0 V I52
2022-01-24 21:15:06 C 03 59 31.31 +07 52 49.7 V 104
2022-01-24 21:20:39 C 03 59 28.95 +07 53 33.9 V 104
2022-01-24 21:35:56 C 03 59 22.42 +07 55 34.7 V 104
2022-01-24 21:47:03 C 03 59 17.73 +07 57 02.9 V 104
2022-01-25 02:04:29 C 03 57 34.86 +08 31 15.4 V I52
2022-01-25 02:06:41 C 03 57 33.94 +08 31 33.1 V I52
2022-01-25 02:08:54 C 03 57 32.98 +08 31 50.4 V I52
2022-01-25 02:11:07 C 03 57 32.03 +08 32 07.9 V I52
2022-01-25 03:42:23 C 03 56 52.83 +08 44 08.2 V G96
2022-01-25 03:49:49 C 03 56 49.70 +08 45 07.5 V G96
2022-01-25 03:57:15 C 03 56 46.50 +08 46 05.4 V G96
2022-01-25 18:49:06 C 03 50 42.98 +10 41 48.9 V 204
2022-01-25 19:15:28 C 03 50 31.87 +10 45 12.1 V 204
2022-01-31 06:18:57 C 03 00 43.25 +25 23 03.5 o 691
2022-01-31 06:42:56 C 03 00 34.67 +25 25 14.7 o 691
2026-01-10 02:41:08 C 04 29 54.630 -29 47 10.80 V 807
2026-01-10 02:59:53 C 04 29 50.510 -29 45 57.00 V 807
2026-01-10 03:18:38 C 04 29 46.460 -29 44 42.80 V 807
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2018-01-20 06:32:00 157661.9969 0.4 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)