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
2024-03-17 14:42:28 C 18 45 08.875 +13 44 51.50 V T05
2024-03-17 15:08:15 C 18 45 00.890 +13 44 13.60 V T05
2024-03-17 15:28:19 C 18 44 54.667 +13 43 44.08 V T05
2024-03-19 15:01:47 C 18 30 37.409 +12 28 29.89 V T08
2024-03-19 15:08:00 C 18 30 35.400 +12 28 19.78 V T08
2024-03-19 15:18:56 C 18 30 31.874 +12 28 01.96 V T08
2024-03-22 08:01:03 C 18 10 15.703 +10 35 14.96 V W68
2024-03-22 08:05:37 C 18 10 14.153 +10 35 06.76 V W68
2024-03-22 08:14:09 C 18 10 11.311 +10 34 51.24 V W68
2024-03-22 08:28:35 C 18 10 06.475 +10 34 24.89 V W68
2024-03-23 13:25:48 C 18 00 43.186 +09 38 31.31 V T05
2024-03-23 13:30:21 C 18 00 41.623 +09 38 22.63 V T05
2024-03-23 13:44:15 C 18 00 36.854 +09 37 56.24 V T05
2024-03-23 14:03:14 C 18 00 30.326 +09 37 20.06 V T05
2024-03-26 18:22:49 C 17 34 48.42 +07 02 54.1 q 323
2024-03-26 18:45:32 C 17 34 40.26 +07 02 07.0 q 323
2024-03-26 18:45:51 C 17 34 40.13 +07 02 05.8 q 323
2024-03-26 19:06:26 C 17 34 32.74 +07 01 22.2 q 323
2024-03-27 12:47:04 C 17 28 25.325 +06 22 23.30 V T05
2024-03-27 12:48:22 C 17 28 24.840 +06 22 19.92 V T05
2024-03-27 12:49:40 C 17 28 24.379 +06 22 17.72 V T05
2024-03-27 13:05:24 C 17 28 18.641 +06 21 44.06 V T05
2024-03-27 13:21:34 C 17 28 12.744 +06 21 09.29 V T05
2024-03-27 13:30:10 C 17 28 09.595 +06 20 50.89 V T05
2024-03-27 20:00:55 C 17 25 52.05 +06 07 45.4 q 323
2024-03-27 20:15:51 C 17 25 46.58 +06 07 13.8 q 323
2024-03-27 20:16:46 C 17 25 46.26 +06 07 11.6 q 323
2024-03-27 20:31:50 C 17 25 40.71 +06 06 39.7 q 323
2024-03-29 12:53:33 C 17 11 25.670 +04 36 23.18 V T08
2024-03-29 13:00:08 C 17 11 23.206 +04 36 08.50 V T08
2024-03-29 13:04:47 C 17 11 21.461 +04 35 58.13 V T08
2024-03-29 13:31:32 C 17 11 11.429 +04 34 58.55 V T08
2024-03-30 04:54:45 C 17 05 42.643 +04 01 19.88 V W68
2024-03-30 05:28:02 C 17 05 30.410 +04 00 05.40 V W68
2024-03-30 05:30:38 C 17 05 29.458 +03 59 59.60 V W68
2024-03-30 05:35:12 C 17 05 27.775 +03 59 49.49 V W68
2024-03-30 22:39:57 B 16 59 17.28 +03 19 37.5 X L76
2024-03-30 22:42:00 B 16 59 16.50 +03 19 32.8 X L76
2024-03-30 22:44:04 B 16 59 15.74 +03 19 28.0 X L76
2024-03-30 22:46:07 B 16 59 14.98 +03 19 23.5 X L76
2024-03-30 22:48:11 B 16 59 14.21 +03 19 18.8 X L76
2024-03-30 22:50:14 B 16 59 13.45 +03 19 14.2 X L76
2024-03-30 22:52:18 B 16 59 12.68 +03 19 09.4 X L76
2024-03-30 22:54:22 B 16 59 11.91 +03 19 04.9 X L76
2024-03-30 22:56:25 B 16 59 11.15 +03 19 00.1 X L76
2024-03-31 13:09:09 C 16 54 01.738 +02 47 06.90 V T05
2024-03-31 13:11:53 C 16 54 00.689 +02 47 00.60 V T05
2024-03-31 13:16:27 C 16 53 58.956 +02 46 50.30 V T05
2024-03-31 13:24:15 C 16 53 55.968 +02 46 32.41 V T05
2024-03-31 19:36:32 C 16 51 40.11 +02 33 26.8 q 323
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)