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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1868323129023247 5.7855e-08  
a 2.360558220788276 1.7086e-08 AU
q 1.919529668657806 1.3967e-07 AU
i 9.687257828337822 7.0197e-06 deg
node 3.473698294604237 3.2782e-05 deg
peri 225.8444060263631 3.8451e-05 deg
M 327.617709512313 2.4774e-05 deg
tp 2457119.658647443108
(2015-Apr-07.15864744)
9.1793e-05 JED
period 1324.709044155783
3.63
1.4382e-05
3.938e-08
d
yr
n .2717577883145068 2.9505e-09 deg/d
Q 2.801586772918746 2.0278e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1153  
   data-arc span      22196 days (60.77 yr)  
   first obs. used      1953-04-15  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53157  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:15:30  

Additional Information
 Earth MOID = .926242 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)  

9846 (1990 OS1)          Discovered 1990-Jul-29 by Holt, H. E. at Palomar (675)
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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