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7523 (1991 PF18)
Classification: Main-belt Asteroid          SPK-ID: 2007523
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304419348353064 7.4928e-08  
a 2.554484289724705 1.8343e-08 AU
q 2.221272416466621 1.8873e-07 AU
i 3.787072713884778 7.0072e-06 deg
node 262.5893980945082 9.3718e-05 deg
peri 148.5672161066932 9.6595e-05 deg
M 192.3132936149083 2.2343e-05 deg
tp 2457695.123408657063
(2016-Nov-02.62340866)
9.322e-05 JED
period 1491.259697964792
4.08
1.6063e-05
4.398e-08
d
yr
n .2414066446584137 2.6003e-09 deg/d
Q 2.88769616298279 2.0736e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      9779 days (26.77 yr)  
   first obs. used      1987-09-16  
   last obs. used      2014-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51294  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:10:09  

Additional Information
 Earth MOID = 1.23278 AU 
 T_jup = 3.423 
[ 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 13.4 mag n/a MPO256919  

7523 (1991 PF18)          Discovered 1991-Aug-08 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 PF18 = 1983 RG7 = 1987 SP17 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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