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9049 (1991 RQ27)
Classification: Main-belt Asteroid          SPK-ID: 2009049
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2219189769854208 5.6381e-08  
a 2.431142376452753 1.9197e-08 AU
q 1.891625747364454 1.369e-07 AU
i 4.614880444735553 5.646e-06 deg
node 110.9940658375502 7.864e-05 deg
peri 212.4650571585166 7.9939e-05 deg
M 78.44189724895121 1.8703e-05 deg
tp 2456698.810909666993
(2014-Feb-10.31090967)
6.9342e-05 JED
period 1384.567129670419
3.79
1.6399e-05
4.49e-08
d
yr
n .2600090615221336 3.0796e-09 deg/d
Q 2.970659005541053 2.3457e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      845  
   data-arc span      8393 days (22.98 yr)  
   first obs. used      1991-09-12  
   last obs. used      2014-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52116  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:54:25  

Additional Information
 Earth MOID = .881894 AU 
 T_jup = 3.469 
[ 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 14.3 mag n/a MPO266006  

9049 (1991 RQ27)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar (675)
Reference: 19980808/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RQ27 = 1995 WP37 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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