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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02109777164230511 4.6932e-08  
a 3.151177935753853 2.2488e-08 au
q 3.084695103261048 1.4533e-07 au
i 1.758705897840754 3.9546e-06 deg
node 268.9085382721699 0.00016478 deg
peri 268.3570275407888 0.00019308 deg
M 98.32628353398603 9.8885e-05 deg
tp 2458442.447650655934
(2018-Nov-19.94765066)
0.0005625 TDB
period 2043.185591311647
5.59
2.1872e-05
5.988e-08
d
yr
n .1761954477022784 1.8861e-09 deg/d
Q 3.217660768246658 2.2963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      752  
   data-arc span      7658 days (20.97 yr)  
   first obs. used      1998-07-16  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:24:26  

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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