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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1870803902019684 5.7907e-08  
a 2.361488798722732 1.7131e-08 AU
q 1.919700552800106 1.3988e-07 AU
i 9.684484100201162 7.0228e-06 deg
node 3.489064698684926 3.2796e-05 deg
peri 225.7384578652736 3.8431e-05 deg
M 273.3897986079569 2.4431e-05 deg
tp 2457119.392135949591
(2015-Apr-06.89213595)
9.1631e-05 JED
period 1325.492460434339
3.63
1.4423e-05
3.949e-08
d
yr
n .2715971691623464 2.9554e-09 deg/d
Q 2.803277044645359 2.0336e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1148  
   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      .53265  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:39:21  

Additional Information
 Earth MOID = .925102 AU 
 T_jup = 3.508 
[ 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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