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
2022-05-26 08:03:59 C 21 38 01.733 -30 40 00.70 V W68
2022-05-26 08:12:44 C 21 38 02.263 -30 40 03.25 V W68
2022-05-31 13:44:31 C 21 46 23.055 -31 23 29.62 U F52
2022-05-31 13:56:50 C 21 46 23.804 -31 23 34.43 U F52
2022-05-31 14:08:51 C 21 46 24.535 -31 23 39.15 U F52
2022-05-31 14:20:51 C 21 46 25.258 -31 23 43.79 U F52
2022-06-03 07:03:50 C 21 50 29.20 -31 49 27.3 V W94
2022-06-03 07:12:10 C 21 50 29.70 -31 49 31.0 V W94
2022-06-03 07:20:27 C 21 50 30.16 -31 49 34.8 V W94
2022-06-03 13:30:27 C 21 50 52.792 -31 52 18.89 U F52
2022-06-03 13:43:18 C 21 50 53.530 -31 52 24.48 U F52
2022-06-03 13:56:05 C 21 50 54.268 -31 52 30.07 U F52
2022-06-03 14:08:53 C 21 50 55.001 -31 52 35.62 U F52
2022-06-11 07:19:56 C 22 01 27.276 -33 22 37.52 V W68
2022-06-11 07:25:47 C 22 01 27.576 -33 22 40.62 V W68
2022-06-11 07:33:49 C 22 01 27.948 -33 22 45.23 V W68
2022-06-11 07:48:58 C 22 01 28.673 -33 22 53.62 V W68
2022-06-25 04:25:03 C 22 15 26.198 -37 14 43.62 V M22
2022-06-25 04:28:10 C 22 15 26.249 -37 14 45.89 V M22
2022-06-25 04:32:56 C 22 15 26.381 -37 14 50.42 V M22
2022-06-25 04:37:30 C 22 15 26.498 -37 14 54.20 V M22
2022-06-28 00:53:09 C 22 17 15.876 -38 15 37.73 V M22
2022-06-28 00:55:07 C 22 17 15.914 -38 15 39.78 V M22
2022-06-28 00:59:05 C 22 17 15.960 -38 15 43.27 V M22
2022-06-28 01:05:51 C 22 17 16.102 -38 15 49.50 V M22
2022-06-29 10:07:02 C 22 17 57.665 -38 46 57.50 V W68
2022-06-29 10:12:27 C 22 17 57.756 -38 47 02.62 V W68
2022-06-29 10:17:38 C 22 17 57.823 -38 47 07.44 V W68
2022-06-29 10:29:04 C 22 17 58.003 -38 47 18.24 V W68
2022-07-02 05:47:58 C 22 19 04.164 -39 54 20.99 V W68
2022-07-02 05:57:34 C 22 19 04.238 -39 54 31.03 V W68
2022-07-02 06:03:04 C 22 19 04.282 -39 54 36.79 V W68
2022-07-02 06:18:04 C 22 19 04.387 -39 54 52.70 V W68
2022-07-03 05:14:38 C 22 19 19.495 -40 18 49.14 V W68
2022-07-03 05:23:33 C 22 19 19.555 -40 18 58.75 V W68
2022-07-03 05:28:13 C 22 19 19.572 -40 19 03.72 V W68
2022-07-03 06:06:19 C 22 19 19.733 -40 19 44.98 V W68
2022-07-04 04:26:34 C 22 19 30.734 -40 43 35.65 V W68
2022-07-04 05:01:38 C 22 19 30.818 -40 44 14.53 V W68
2022-07-04 05:05:49 C 22 19 30.840 -40 44 19.57 V W68
2022-07-04 05:22:26 C 22 19 30.857 -40 44 37.82 V W68
2022-07-04 07:58:23 C 22 19 30.92 -40 47 32.2 V W94
2022-07-04 08:06:26 C 22 19 30.91 -40 47 40.9 V W94
2022-07-04 08:14:34 C 22 19 30.90 -40 47 49.8 V W94
2022-07-05 07:25:24 C 22 19 37.474 -41 13 13.80 V W68
2022-07-05 07:28:06 C 22 19 37.445 -41 13 16.79 V W68
2022-07-05 07:54:33 C 22 19 37.380 -41 13 46.45 V W68
2022-07-05 08:02:32 C 22 19 37.339 -41 13 55.38 V W68
2022-07-06 01:04:05 C 22 19 39.382 -41 32 57.88 V M22
2022-07-06 01:07:58 C 22 19 39.374 -41 33 02.23 V M22
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)