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58576 (1997 RQ9)
Classification: Main-belt Asteroid          SPK-ID: 2058576
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .090785052448745 9.366e-08  
a 2.347391751879522 2.7532e-08 AU
q 2.134283668567388 2.2606e-07 AU
i 2.866851075327471 8.8776e-06 deg
node 315.2536325330858 0.00017841 deg
peri .2050017784408125 0.00018882 deg
M 254.7225526846839 6.971e-05 deg
tp 2457184.657780407944
(2015-Jun-11.15778041)
0.00025716 JED
period 1313.64128285375
3.60
2.3111e-05
6.327e-08
d
yr
n .2740474166721809 4.8214e-09 deg/d
Q 2.560499835191656 3.0032e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      6054 days (16.57 yr)  
   first obs. used      1997-09-04  
   last obs. used      2014-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .71038  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 15:04:58  

Additional Information
 Earth MOID = 1.1195 AU 
 T_jup = 3.553 
[ 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 16.0 mag n/a MPO253731  

58576 (1997 RQ9)          Discovered 1997-Sep-04 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 RQ9 = 1999 AA27 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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