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JPL Small-Body Database Browser
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91147 (1998 OM2)
Classification: Main-belt Asteroid          SPK-ID: 2091147
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0210977313453368 4.7248e-08  
a 3.151177906241847 2.3028e-08 au
q 3.084695201354595 1.4681e-07 au
i 1.758705377766596 4.1041e-06 deg
node 268.9084790838477 0.00016838 deg
peri 268.3571430829028 0.000197 deg
M 98.32622719018448 0.00010077 deg
tp 2458442.447978275616
(2018-Nov-19.94797828)
0.000573 TDB
period 2043.185562608806
5.59
2.2396e-05
6.132e-08
d
yr
n .1761954501774867 1.9314e-09 deg/d
Q 3.217660611129098 2.3514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      7603 days (20.82 yr)  
   first obs. used      1998-07-16  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53814  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:03:31  

Additional Information
 Earth MOID = 2.08768 au 
 Jupiter MOID = 1.75178 au 
 T_jup = 3.207 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO474789  
diameter diameter 4.264 km 1.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.140   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91147 (1998 OM2)          Discovered 1998-Jul-16 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 OM2 = 2000 YW57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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