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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07379534164611647 4.9545e-08  
a 3.13178081637347 2.486e-08 au
q 2.900669981068436 1.5057e-07 au
i 4.620824568532031 5.1012e-06 deg
node 145.7185254222746 6.2794e-05 deg
peri 47.69617339894741 7.1897e-05 deg
M 177.9859613013217 3.3322e-05 deg
tp 2456599.650644286817
(2013-Nov-03.15064429)
0.00018985 JED
period 2024.349366783852
5.54
2.4104e-05
6.599e-08
d
yr
n .1778349161992445 2.1175e-09 deg/d
Q 3.362891651678504 2.6695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1533  
   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      .47311  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 17:54:49  

Additional Information
 Earth MOID = 1.90234 au 
 Jupiter MOID = 1.60057 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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