Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
JPL Small-Body Database Browser
Search: [ help ]  
2996 Bowman (1954 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2002996
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03341051309342178 4.5715e-08  
a 2.781157073159603 1.5344e-08 au
q 2.688237188351941 1.2694e-07 au
i 3.666783604052313 5.446e-06 deg
node 334.4367488559108 6.3986e-05 deg
peri 302.2462766168764 0.00010539 deg
M 156.3928548642315 8.4539e-05 deg
tp 2456664.545254782949
0.00039763 JED
period 1694.09087460001
n .2125033582304132 1.7586e-09 deg/d
Q 2.874076957967264 1.5857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1731  
   data-arc span      28398 days (77.75 yr)  
   first obs. used      1938-03-19  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51071  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:46:05  

Additional Information
 Earth MOID = 1.67253 au 
 Jupiter MOID = 2.1659 au 
 T_jup = 3.329 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.1 mag n/a MPO347544  
diameter diameter 22.10 km 2.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
rotation period rot_per 12.8291 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.0689   0.014 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
SMASSII spectral type spec_B Xc   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)

2996 Bowman (1954 RJ)          Discovered 1954-Sep-05 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1954 RJ = 1938 FO = 1940 RW = 1949 QW1 = 1956 AC = 1961 EE = 1977 RF3 = 1977 TC2 = 1984 BD 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2016-Feb-09 01:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin