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1738 Oosterhoff (1930 SP)
Classification: Main-belt Asteroid          SPK-ID: 2001738
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2032311454700249 4.5088e-08  
a 2.183164952342747 5.4144e-09 AU
q 1.739477838328119 9.7587e-08 AU
i 4.875607727732512 4.8727e-06 deg
node 44.16642356948837 5.0567e-05 deg
peri 284.0642483778087 5.1599e-05 deg
M 51.46662086080644 1.218e-05 deg
tp 2456832.057605335557
(2014-Jun-23.55760534)
3.9488e-05 JED
period 1178.225052761884
3.23
4.3831e-06
1.2e-08
d
yr
n .3055443432951301 1.1367e-09 deg/d
Q 2.626852066357376 6.5147e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1716  
   data-arc span      31914 days (87.38 yr)  
   first obs. used      1927-10-30  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49335  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:06:55  

Additional Information
 Earth MOID = .737111 AU 
 T_jup = 3.647 
[ 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 12.4 mag n/a MPO267714  
rotation period rot_per 4.4486 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]
SMASSII spectral type spec_B S   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)

1738 Oosterhoff (1930 SP)          Discovered 1930-Sep-16 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1930 SP = 1927 UF = 1939 GO = 1942 FD = 1943 TO = 1946 OG = 1949 JE = 1949 KH = 1952 HV = 1952 JJ = 1959 RB1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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