Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


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

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3494748565654725 1.1692e-08  
a 1.077885293910466 2.6861e-10 au
q .7011914854270739 1.2623e-08 au
i 9.432249015069809 4.8196e-06 deg
node 33.09691835845279 1.4397e-05 deg
peri 55.32942781051586 1.1535e-05 deg
M 281.5459851614758 4.9757e-06 deg
tp 2458689.577889609233
(2019-Jul-25.07788961)
5.6631e-06 TDB
period 408.7495117404376
1.12
1.5279e-07
4.183e-10
d
yr
n .8807349970086463 3.2921e-10 deg/d
Q 1.454579102393859 3.6248e-10 au
  Orbit Determination Parameters
   # obs. used (total)      678  
   # delay obs. used      7  
   # Doppler obs. used      5  
   data-arc span      14282 days (39.10 yr)  
   first obs. used      1977-04-24  
   last obs. used      2016-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .383  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:30:50  

Additional Information
 Earth MOID = .0672438 au 
 Jupiter MOID = 3.77118 au 
 T_jup = 5.669 
[ 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 17.3   n/a MPO337263  
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. 2019-January); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-07 06:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin