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
2023-07-04 21:14:37 C 16 18 15.742 -45 25 13.33 V M22
2023-07-04 21:19:23 C 16 18 15.314 -45 25 10.20 V M22
2023-07-04 21:27:30 C 16 18 14.431 -45 25 07.50 V M22
2023-07-04 21:47:07 C 16 18 12.360 -45 24 58.10 V M22
2023-07-06 03:18:43 C 16 15 21.739 -45 12 05.11 V W68
2023-07-06 03:23:19 C 16 15 21.266 -45 12 02.81 V W68
2023-07-06 03:30:30 C 16 15 20.563 -45 11 59.32 V W68
2023-07-06 21:16:17 C 16 13 43.241 -45 04 00.55 V M22
2023-07-06 21:20:57 C 16 13 42.713 -45 03 58.50 V M22
2023-07-06 21:30:55 C 16 13 41.810 -45 03 53.35 V M22
2023-07-06 21:58:37 C 16 13 39.185 -45 03 40.97 V M22
2023-07-13 20:32:53 C 16 01 36.650 -43 44 40.13 V M22
2023-07-13 20:37:42 C 16 01 36.377 -43 44 37.72 V M22
2023-07-13 20:45:02 C 16 01 35.914 -43 44 34.19 V M22
2023-07-13 21:01:35 C 16 01 34.942 -43 44 25.73 V M22
2023-08-02 19:03:02 C 15 54 05.371 -40 17 12.88 V M22
2023-08-02 19:07:59 C 15 54 05.467 -40 17 11.18 V M22
2023-08-02 19:15:36 C 15 54 05.556 -40 17 07.55 V M22
2023-08-02 19:29:49 C 15 54 05.695 -40 17 02.62 V M22
2023-08-04 01:44:22 C 15 54 40.663 -40 06 25.38 V W68
2023-08-04 01:49:13 C 15 54 40.769 -40 06 23.54 V W68
2023-08-04 01:56:34 C 15 54 40.913 -40 06 20.41 V W68
2023-08-04 02:12:24 C 15 54 41.179 -40 06 14.40 V W68
2023-08-05 18:44:05 C 15 55 37.937 -39 52 30.97 V M22
2023-08-05 18:49:38 C 15 55 38.004 -39 52 29.10 V M22
2023-08-05 18:58:38 C 15 55 38.220 -39 52 26.36 V M22
2023-08-05 19:13:18 C 15 55 38.496 -39 52 21.50 V M22
2023-08-09 18:28:25 C 15 58 31.248 -39 22 14.23 V M22
2023-08-09 18:33:24 C 15 58 31.380 -39 22 13.08 V M22
2023-08-09 18:48:17 C 15 58 31.877 -39 22 08.83 V M22
2023-08-09 18:57:00 C 15 58 32.141 -39 22 06.06 V M22
2024-01-03 01:32:51 C 21 53 10.565 -06 42 20.66 V 703
2024-01-03 01:36:10 C 21 53 10.860 -06 42 16.81 V 703
2024-01-03 01:39:30 C 21 53 11.083 -06 42 11.48 V 703
2024-01-03 01:42:49 C 21 53 11.375 -06 42 07.34 V 703
2024-03-15 14:58:47 C 18 58 58.721 +14 53 02.94 V T08
2024-03-15 15:29:57 C 18 58 49.404 +14 52 22.04 V T08
2024-03-15 15:41:47 C 18 58 45.850 +14 52 06.74 V T08
2024-03-16 15:08:01 C 18 52 02.177 +14 19 27.01 V T05
2024-03-16 15:24:57 C 18 51 57.022 +14 19 03.61 V T05
2024-03-16 15:33:27 C 18 51 54.422 +14 18 51.70 V T05
2024-03-17 00:06:03 C 18 49 25.00 +14 05 54.7 q 168
2024-03-17 00:20:32 C 18 49 20.64 +14 05 33.3 q 168
2024-03-17 00:40:35 C 18 49 14.64 +14 05 04.9 q 168
2024-03-17 00:54:37 C 18 49 10.39 +14 04 45.2 q 168
2024-03-17 01:06:38 C 18 49 06.79 +14 04 27.2 q 168
2024-03-17 13:51:53 C 18 45 24.408 +13 46 06.53 V T08
2024-03-17 13:58:55 C 18 45 22.255 +13 45 56.20 V T08
2024-03-17 14:06:38 C 18 45 19.891 +13 45 45.04 V T08
2024-03-17 14:25:39 C 18 45 14.045 +13 45 17.53 V T08
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)