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
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
1002 Olbersia (1923 OB)
Classification: Main-belt Asteroid          SPK-ID: 2001002
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533722403127032 5.5155e-08  
a 2.787544012120076 1.6971e-08 AU
q 2.360012142010959 1.4871e-07 AU
i 10.76540672397409 5.862e-06 deg
node 343.7601872732807 2.7015e-05 deg
peri 355.634127593345 3.1274e-05 deg
M 170.1865304973273 1.7844e-05 deg
tp 2455996.874497318732
(2012-Mar-10.37449732)
8.1344e-05 JED
period 1699.929954032409
4.65
1.5524e-05
4.25e-08
d
yr
n .211773431691137 1.9339e-09 deg/d
Q 3.215075882229193 1.9573e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1319  
   data-arc span      28962 days (79.29 yr)  
   first obs. used      1935-02-08  
   last obs. used      2014-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50236  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:15:07  

Additional Information
 Earth MOID = 1.35032 AU 
 T_jup = 3.288 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.8 mag n/a MPO256869  
diameter diameter 32.13 km 2.3 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 10.244 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
geometric albedo albedo 0.0621   0.010 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3

1002 Olbersia (1923 OB)          Discovered 1923-Aug-15 by Albitzkij, V. at Simeis (094)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1923 OB = 1956 UR 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-24 12:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin