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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08999068840566964 4.0439e-08  
a 2.348168376030999 1.077e-08 au
q 2.136855087379546 9.5301e-08 au
i 2.865989488342392 4.2757e-06 deg
node 315.1494179416609 9.271e-05 deg
peri .06386697228753219 9.6284e-05 deg
M 137.667849629002 2.5733e-05 deg
tp 2458497.900204868041
(2019-Jan-14.40020487)
9.3985e-05 TDB
period 1314.293255361403
3.60
9.042e-06
2.476e-08
d
yr
n .273911471835871 1.8844e-09 deg/d
Q 2.559481664682453 1.1739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      714  
   data-arc span      8247 days (22.58 yr)  
   first obs. used      1997-09-04  
   last obs. used      2020-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60238  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:50:35  

Additional Information
 Earth MOID = 1.12303 au 
 Jupiter MOID = 2.64486 au 
 T_jup = 3.552 
[ 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 16.1   n/a MPO449377  

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

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