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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .187001475087284 5.5274e-08  
a 2.360930490968265 1.5126e-08 au
q 1.919433006578654 1.3174e-07 au
i 9.687468995246688 6.7996e-06 deg
node 3.47065207101779 3.2376e-05 deg
peri 225.9125725891142 3.6918e-05 deg
M 130.5834877344394 2.0876e-05 deg
tp 2457119.872084500232
(2015-Apr-07.37208450)
7.5287e-05 JED
period 1325.022424977576
3.63
1.2733e-05
3.486e-08
d
yr
n .2716935149275625 2.611e-09 deg/d
Q 2.802427975357876 1.7954e-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 = .924398 au 
 Jupiter MOID = 2.22464 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. 2016-February); 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. (2016) 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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