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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2219189718566295 4.9699e-08  
a 2.431142378346953 1.6655e-08 AU
q 1.891625761307117 1.1635e-07 AU
i 4.614882007202129 5.0289e-06 deg
node 110.9940936643367 6.8424e-05 deg
peri 212.4650294555426 7.0021e-05 deg
M 78.44189628117233 1.8107e-05 deg
tp 2456698.810913036503
(2014-Feb-10.31091304)
6.7415e-05 JED
period 1384.567131288577
3.79
1.4228e-05
3.895e-08
d
yr
n .2600090612182585 2.6719e-09 deg/d
Q 2.97065899538679 2.0352e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1045  
   data-arc span      8558 days (23.43 yr)  
   first obs. used      1991-09-12  
   last obs. used      2015-02-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49899  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:16:37  

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 14.4 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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