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23522 (1992 WC9)
Classification: Main-belt Asteroid          SPK-ID: 2023522
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08915367046250729 4.5553e-08  
a 2.338609366185049 1.399e-08 AU
q 2.130113757411654 1.0332e-07 AU
i 7.251270612236877 5.7216e-06 deg
node 56.2822774438082 5.0535e-05 deg
peri 32.93185243290073 6.5763e-05 deg
M 33.28681789324417 4.2578e-05 deg
tp 2456879.717300126701
(2014-Aug-10.21730013)
0.00015441 JED
period 1306.276018748334
3.58
1.1721e-05
3.209e-08
d
yr
n .2755925966894422 2.4729e-09 deg/d
Q 2.547104974958444 1.5237e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      8249 days (22.58 yr)  
   first obs. used      1992-11-16  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53517  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:33:17  

Additional Information
 Earth MOID = 1.14978 AU 
 T_jup = 3.550 
[ 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 14.2 mag n/a MPO337457  

23522 (1992 WC9)          Discovered 1992-Nov-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 WC9 = 1997 BK7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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