2063 Bacchus (1977 HB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3494289066 ± 2.00e+00
Semi-major axis (a)1.0779986113 AU ± 3.00e+00
Inclination (i)9.43469494° ± 4.00e+00
Long. of Asc. Node (Ω)33.03636030° ± 5.00e+00
Arg. of Perihelion (ω)55.35066867° ± 6.00e+00
Mean Anomaly (M)234.78705685° ± 2.00e-05
Mean Motion (n)0.8806127601°/day ± 3.68e+00
Perihelion dist (q)0.70131474 AU ± 2.91e+00
Aphelion dist (Q)1.45468249 AU ± 4.59e+00
Orbital Period1.11925051 yr ± 4.67e+00
NGA Modelr2
A2-3.62707582e-06 AU/d²
Physical Parameters
H (abs. magnitude)17.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.501″
Uncertainty0
Orbit TypeApollo
MOID0.067153 AU
Observations Used1463
Radar Obs Used7
Gaia Obs Used54
Oppositions4
Arc Total1977-2025
First Observation Used1977-04-24
Last Observation Used2025-06-15
Observations (1537)
Date Type RA Dec Mag Band Observatory
2022-07-06 01:12:36 C 22 19 39.334 -41 33 07.49 V M22
2022-07-06 01:26:55 C 22 19 39.262 -41 33 23.76 V M22
2022-07-17 21:37:39 C 22 13 10.440 -47 32 45.24 V M22
2022-07-17 21:42:23 C 22 13 10.186 -47 32 52.15 V M22
2022-07-17 22:25:36 C 22 13 07.745 -47 33 53.82 V M22
2022-07-17 23:04:52 C 22 13 05.486 -47 34 49.33 V M22
2022-07-22 00:44:03 C 22 06 53.839 -49 52 24.71 V M22
2022-07-22 00:47:42 C 22 06 53.549 -49 52 29.93 V M22
2022-07-22 01:32:24 C 22 06 49.733 -49 53 33.36 V M22
2022-07-22 02:22:14 C 22 06 45.494 -49 54 43.67 V M22
2022-07-24 06:40:36 C 22 02 22.298 -51 09 42.70 V W68
2022-07-24 06:45:48 C 22 02 21.766 -51 09 50.11 V W68
2022-07-24 06:55:15 C 22 02 20.815 -51 10 03.68 V W68
2022-07-24 07:09:49 C 22 02 19.346 -51 10 24.53 V W68
2022-07-25 23:24:58 C 21 58 22.910 -52 08 05.86 V M22
2022-07-25 23:29:33 C 21 58 22.370 -52 08 12.44 V M22
2022-07-25 23:35:12 C 21 58 21.727 -52 08 20.58 V M22
2022-07-25 23:43:47 C 21 58 20.750 -52 08 33.07 V M22
2022-07-25 23:44:26 C 21 58 20.678 -52 08 33.94 V M22
2022-07-25 23:45:45 C 21 58 20.525 -52 08 35.92 V M22
2022-07-25 23:49:00 C 21 58 20.143 -52 08 40.63 V M22
2022-07-25 23:59:37 C 21 58 18.934 -52 08 55.90 V M22
2022-07-26 00:07:06 C 21 58 18.067 -52 09 06.62 V M22
2022-07-28 05:29:32 C 21 52 14.549 -53 24 58.21 V W68
2022-07-28 05:38:40 C 21 52 13.330 -53 25 11.10 V W68
2022-07-28 05:42:29 C 21 52 12.838 -53 25 16.68 V W68
2022-07-28 05:50:12 C 21 52 11.803 -53 25 27.44 V W68
2022-07-31 13:44:59 C 21 41 15.46 -55 15 32.3 q E89
2022-07-31 13:49:49 C 21 41 14.67 -55 15 39.2 q E89
2022-07-31 13:54:34 C 21 41 13.92 -55 15 45.2 q E89
2022-07-31 13:59:19 C 21 41 13.13 -55 15 51.5 q E89
2022-08-01 05:59:58 C 21 38 45.221 -55 37 13.37 V W68
2022-08-01 06:05:12 C 21 38 44.330 -55 37 20.21 V W68
2022-08-01 06:14:03 C 21 38 42.842 -55 37 31.69 V W68
2022-08-01 06:29:59 C 21 38 40.154 -55 37 52.64 V W68
2022-08-05 03:28:59 C 21 22 27.958 -57 34 02.32 V W68
2022-08-05 03:33:39 C 21 22 27.007 -57 34 08.00 V W68
2022-08-05 03:37:52 C 21 22 26.158 -57 34 13.08 V W68
2022-08-05 03:43:44 C 21 22 24.960 -57 34 20.03 V W68
2022-08-06 23:41:49 C 21 13 35.988 -58 23 38.44 V M22
2022-08-06 23:47:03 C 21 13 34.841 -58 23 44.02 V M22
2022-08-06 23:54:59 C 21 13 33.101 -58 23 52.22 V M22
2022-08-07 00:13:11 C 21 13 29.086 -58 24 11.38 V M22
2022-08-08 17:56:09 C 21 04 29.20 -59 06 37.6 X Q62
2022-08-08 18:17:31 C 21 04 24.32 -59 06 57.2 X Q62
2022-08-08 18:39:35 C 21 04 19.27 -59 07 17.2 X Q62
2022-08-08 19:00:17 C 21 04 14.62 -59 07 35.6 X Q62
2022-08-09 04:45:58 C 21 02 06.293 -59 17 08.63 V W68
2022-08-09 05:37:48 C 21 01 53.866 -59 17 56.47 V W68
2022-08-09 05:41:46 C 21 01 52.932 -59 18 00.04 V W68
Radar Observations (19)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1996-03-22 18:00:00 384093.223 2.3 Hz 8510 -14 -14
1996-03-22 20:10:00 87190665 15 us 8510 -14 -14
1996-03-22 22:50:00 86769151 2 us 8510 -14 -14
1996-03-22 22:50:00 371573.7 2 Hz 8510 -14 -14
1996-03-22.750000 38409322 200 Hz 8510 253 253
1996-03-22.840278 8719066500 15000 us 8510 253 253
1996-03-22.951389 8676915100 2000 us 8510 253 253
1996-03-24 17:50:00 324347 2 Hz 8510 -14 -14
1996-03-24 22:10:00 79673366 1 us 8510 -14 -14
1996-03-24 23:00:00 79562896 10 us 8510 -14 -14
1996-03-24.743056 32434700 200 Hz 8510 253 253
1996-03-24.923611 7967336600 1000 us 8510 253 253
1996-03-24.958333 7956289600 10000 us 8510 253 253
1996-03-29 19:30:00 96363 2 Hz 8510 -14 -14
1996-03-29.812500 9636300 200 Hz 8510 253 253
2012-09-13 11:31:00 -76858.4372 0.3 Hz 2380 -1 -1
2012-09-13 12:27:00 248520536.79 4 us 2380 -1 -1
2012-09-14 12:21:00 251520636.56 4 us 2380 -1 -1
2015-04-18 23:59:00 217913625.88 4 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)