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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2205871248628566 4.8238e-08  
a 2.433642807972243 1.6696e-08 au
q 1.896812538018477 1.1254e-07 au
i 4.609885744417511 4.6867e-06 deg
node 110.9414493407065 6.0637e-05 deg
peri 212.7452506498526 6.2332e-05 deg
M 234.021647119135 1.9196e-05 deg
tp 2458085.762918660995
(2017-Nov-28.26291866)
7.8006e-05 JED
period 1386.703721100111
3.80
1.4271e-05
3.907e-08
d
yr
n .2596084473721625 2.6716e-09 deg/d
Q 2.970473077926009 2.0379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      8964 days (24.54 yr)  
   first obs. used      1991-09-12  
   last obs. used      2016-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5113  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:04:14  

Additional Information
 Earth MOID = .885768 au 
 Jupiter MOID = 2.35201 au 
 T_jup = 3.468 
[ 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 14.4 mag n/a MPO324392  

9049 (1991 RQ27)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar
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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