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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2033365792829568 4.6549e-08  
a 2.183469236733643 7.224e-09 AU
q 1.739490071166655 1.0178e-07 AU
i 4.875459304159325 4.9628e-06 deg
node 44.16866354701487 5.6666e-05 deg
peri 284.0746502458761 5.7524e-05 deg
M 350.3505491014523 1.4128e-05 deg
tp 2456832.087782779334
(2014-Jun-23.58778278)
4.6363e-05 JED
period 1178.471388695481
3.23
5.8485e-06
1.601e-08
d
yr
n .3054804753456976 1.516e-09 deg/d
Q 2.62744840230063 8.6929e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1411  
   data-arc span      31659 days (86.68 yr)  
   first obs. used      1927-10-30  
   last obs. used      2014-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52311  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:00:27  

Additional Information
 Earth MOID = .735329 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 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]
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
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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