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 ]  
750 Oskar (A913 HF)
Classification: Main-belt Asteroid          SPK-ID: 2000750
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1285698156477478 2.8829e-08  
a 2.444629004211466 6.876e-09 au
q 2.130323503812861 7.0854e-08 au
i 3.95091984479897 3.37e-06 deg
node 69.70552546849825 5.081e-05 deg
peri 72.05603393569992 5.2961e-05 deg
M 331.9963236427797 1.4535e-05 deg
tp 2458709.100147746208
(2019-Aug-13.60014775)
5.6417e-05 TDB
period 1396.104307517266
3.82
5.8902e-06
1.613e-08
d
yr
n .2578603891282298 1.0879e-09 deg/d
Q 2.758934504610072 7.76e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2748  
   data-arc span      38900 days (106.50 yr)  
   first obs. used      1913-06-06  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45258  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:47:55  

Additional Information
 Earth MOID = 1.1476 au 
 Jupiter MOID = 2.26066 au 
 T_jup = 3.485 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.13   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
diameter diameter 22.526 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.2584 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durkee, R.I. (2011) http://home.earthlink.net/~shedofscience/index.html]
[Pilcher, F. (2012) Minor Planet Bull. 39, 171-173.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.060   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.603   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.17, mean=9.95, max.=13.88) deg.
U-B UB 0.220   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.17, mean=9.95, max.=13.88) deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

750 Oskar (A913 HF)          Discovered 1913-Apr-28 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A913 HF = 1928 FN = 1932 JB = 1940 LN = 1953 VE = 1970 ER2 = 1970 FH = 1972 TY1 = 1977 FD = 1978 BA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-23 05:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin