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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1283430504529574 2.5013e-08  
a 2.44430587069654 6.2177e-09 au
q 2.130596199011274 6.0059e-08 au
i 3.950802141305712 3.3016e-06 deg
node 69.70365288581591 4.5097e-05 deg
peri 72.09360991049478 4.7481e-05 deg
M 75.13319796809473 1.4571e-05 deg
tp 2458709.186153999542
(2019-Aug-13.68615400)
5.6339e-05 TDB
period 1395.82750896214
3.82
5.3259e-06
1.458e-08
d
yr
n .2579115239444421 9.8409e-10 deg/d
Q 2.758015542381806 7.0157e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3311  
   data-arc span      39143 days (107.17 yr)  
   first obs. used      1913-06-06  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42182  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:21:10  

Additional Information
 Earth MOID = 1.14742 au 
 Jupiter MOID = 2.2599 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-August); 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 ]
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