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JPL Small-Body Database Browser
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27760 (1991 RB7)
Classification: Main-belt Asteroid          SPK-ID: 2027760
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189109116059835 4.5152e-08  
a 2.237611772721313 7.196e-09 au
q 1.814458988296905 9.8932e-08 au
i 4.464594697675427 4.1742e-06 deg
node 4.773307722943094 4.8694e-05 deg
peri 5.183518347210362 4.9767e-05 deg
M 82.58588017463185 1.1852e-05 deg
tp 2458320.034894649576
(2018-Jul-20.53489465)
3.9625e-05 TDB
period 1222.575066254086
3.35
5.8976e-06
1.615e-08
d
yr
n .2944604465908368 1.4205e-09 deg/d
Q 2.660764557145721 8.5569e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1242  
   data-arc span      16326 days (44.70 yr)  
   first obs. used      1974-06-18  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51917  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:05:20  

Additional Information
 Earth MOID = .813136 au 
 Jupiter MOID = 2.79975 au 
 T_jup = 3.609 
[ 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 15.1   n/a MPO365581  

27760 (1991 RB7)          Discovered 1991-Sep-02 by McNaught, R. H. at Siding Spring
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RB7 = 1998 YW22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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