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2542 Calpurnia (1980 CF)
Classification: Main-belt Asteroid          SPK-ID: 2002542
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07375618227680485 4.9564e-08  
a 3.131767964133728 2.4786e-08 au
q 2.900780715322423 1.5063e-07 au
i 4.620986192439441 5.1023e-06 deg
node 145.7196667984375 6.2981e-05 deg
peri 47.60269354669322 7.2124e-05 deg
M 142.5263423634005 3.3508e-05 deg
tp 2456599.051847643676
(2013-Nov-02.55184764)
0.00019045 JED
period 2024.336905472756
5.54
2.4032e-05
6.58e-08
d
yr
n .1778360109064588 2.1112e-09 deg/d
Q 3.362755212945034 2.6615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1525  
   data-arc span      22439 days (61.43 yr)  
   first obs. used      1954-07-03  
   last obs. used      2015-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47423  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:44:09  

Additional Information
 Earth MOID = 1.90284 au 
 Jupiter MOID = 1.60046 au 
 T_jup = 3.204 
[ 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 11.6 mag n/a MPO309166  
diameter diameter 27.61 km 2.3 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
geometric albedo albedo 0.0639   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3

2542 Calpurnia (1980 CF)          Discovered 1980-Feb-11 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 CF = 1972 XN2 = 1976 OE 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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