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2063 Bacchus (1977 HB)
Classification: Apollo [NEO]          SPK-ID: 2002063
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 124 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3495127712164382 5.335e-09  
a 1.078068542479466 1.9759e-10 au
q .7012698186362014 5.7809e-09 au
i 9.431238170672705 7.8931e-07 deg
node 33.08177407634696 2.608e-06 deg
peri 55.36233211853553 3.4452e-06 deg
M 89.83442897133507 2.8931e-06 deg
tp 2459098.474601851516
(2020-Sep-05.97460185)
3.2666e-06 TDB
period 408.8537518858591
1.12
1.124e-07
3.077e-10
d
yr
n .8805104474142194 2.4207e-10 deg/d
Q 1.45486726632273 2.6665e-10 au
  Orbit Determination Parameters
   # obs. used (total)      709  
   # delay obs. used      7  
   # Doppler obs. used      5  
   data-arc span      15816 days (43.30 yr)  
   first obs. used      1977-04-24  
   last obs. used      2020-08-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39743  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:17:52  

Additional Information
 Earth MOID = .06684 au 
 Jupiter MOID = 3.76999 au 
 T_jup = 5.668 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.25   n/a E2021B10  
diameter diameter 1.024 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
extent extent 1.11 x 0.53 x 0.50 km n/a Benner et al. Icarus, 1999, 139:309  
rotation period rot_per 14.904 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Benner, L.A.M.; Hudson, R.S.; Ostro, S.J.; Rosema, K.D.; et al. (1999) Icarus 139, 309-327.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
geometric albedo albedo 0.203   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2063 Bacchus (1977 HB)          Discovered 1977-Apr-24 by Kowal, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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