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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1868323160576818 5.7523e-08  
a 2.360558218449252 1.6472e-08 AU
q 1.919529659307383 1.3846e-07 AU
i 9.687257776997075 7.0112e-06 deg
node 3.473698935577237 3.2525e-05 deg
peri 225.8444027788973 3.7853e-05 deg
M 327.6177135949176 2.3429e-05 deg
tp 2457119.658632243047
(2015-Apr-07.15863224)
8.676e-05 JED
period 1324.709042186847
3.63
1.3866e-05
3.796e-08
d
yr
n .2717577887184248 2.8445e-09 deg/d
Q 2.801586777591121 1.955e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      22561 days (61.77 yr)  
   first obs. used      1953-04-15  
   last obs. used      2015-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53077  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:27:20  

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
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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