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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024819923402943 4.4573e-08  
a 2.184319954709866 5.1915e-09 au
q 1.742034498371551 9.6315e-08 au
i 4.876581944750096 4.2283e-06 deg
node 44.11585560317685 4.9059e-05 deg
peri 284.2940138116036 4.9956e-05 deg
M 234.4974897266194 1.1945e-05 deg
tp 2458011.576564711965
(2017-Sep-15.07656471)
4.0131e-05 JED
period 1179.160185513005
3.23
4.2038e-06
1.151e-08
d
yr
n .3053020314143141 1.0884e-09 deg/d
Q 2.626605411048181 6.2427e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1977  
   data-arc span      32306 days (88.45 yr)  
   first obs. used      1927-10-30  
   last obs. used      2016-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .482  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:35:50  

Additional Information
 Earth MOID = .738355 au 
 Jupiter MOID = 2.71856 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 12.5 mag n/a MPO358644  
rotation period rot_per 4.4486 h n/a LCDB (Rev. 2016-February); 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]
[Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]
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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