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9846 (1990 OS1)
Classification: Main-belt Asteroid          SPK-ID: 2009846
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1869276169936284 5.5275e-08  
a 2.360827591125588 1.5066e-08 au
q 1.919523715383674 1.317e-07 au
i 9.68744573468928 6.7994e-06 deg
node 3.470767278882288 3.2377e-05 deg
peri 225.8931166441871 3.6922e-05 deg
M 76.27386304089603 2.0698e-05 deg
tp 2457119.783411734356
(2015-Apr-07.28341173)
7.5306e-05 JED
period 1324.935800373023
3.63
1.2683e-05
3.472e-08
d
yr
n .2717112783114816 2.6009e-09 deg/d
Q 2.802131466867502 1.7882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1174  
   data-arc span      22732 days (62.24 yr)  
   first obs. used      1953-04-15  
   last obs. used      2015-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54084  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:29:04  

Additional Information
 Earth MOID = .924134 au 
 Jupiter MOID = 2.2242 au 
 T_jup = 3.509 
[ 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 13.6 mag n/a PDS3 (MPC 33456)  
rotation period rot_per 18.5455 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

9846 (1990 OS1)          Discovered 1990-Jul-29 by Holt, H. E. at Palomar
Reference: 19990106/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 OS1 = 1993 FH1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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