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

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07384548667465642 3.9845e-08  
a 3.129583757894081 1.8465e-08 au
q 2.898478122203293 1.2509e-07 au
i 4.621406055576726 4.1986e-06 deg
node 145.7048603988123 5.3027e-05 deg
peri 48.35515002150557 5.9996e-05 deg
M 355.2616264278843 2.7025e-05 deg
tp 2458627.116754094379
(2019-May-23.61675409)
0.00015177 TDB
period 2022.219508053219
5.54
1.7897e-05
4.9e-08
d
yr
n .1780222169583214 1.5755e-09 deg/d
Q 3.36068939358487 1.9829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2216  
   data-arc span      23688 days (64.85 yr)  
   first obs. used      1954-07-03  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43697  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 21:35:23  

Additional Information
 Earth MOID = 1.90092 au 
 Jupiter MOID = 1.60199 au 
 T_jup = 3.204 
[ 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 11.6   n/a MPO309166  
diameter diameter 20.854 km 0.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1917-Nov-29 02:18 00:03 Jupiter 1.87228347938183 1.87228225457576 1.87228470418758 2.94564428135353 2.78783404496698 2421561.596117306 2.49658803877519 58.8502479048002 25.4788975761219 50.1660283850292 1571998.26598289 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
1928-Feb-07 13:08 00:02 Jupiter 1.59370760356654 1.59370718155244 1.59370802558128 2.12226391140669 1.85500555720361 2425284.047302489 2.2475730694407 139.870807137956 17.3838967454799 84.7172450617152 2383301.44621474 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
1938-Apr-25 16:51 00:02 Jupiter 1.80448463592736 1.80448373570215 1.80448553615325 2.80417581922851 2.63146439765931 2429014.202011263 1.9096496029122 85.4551269918633 16.864879349389 -71.6407027119087 2650886.23380344 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
2000-Sep-29 01:31 < 00:01 Jupiter 1.80123017661971 1.80122973806294 1.80123061517649 2.6601512777159 2.4770771999287 2451816.563404191 0.390881908781926 40.6913960126144 9.68412426088806 79.5227306438179 3028141.72191594 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
2010-Dec-08 23:15 < 00:01 Jupiter 1.59011681513909 1.59011642126201 1.590117209016 2.13069210949332 1.86399839300373 2455539.468516848 0.232013114164311 46.8138417985823 16.4748352220765 76.2531600792596 2375417.12315527 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
2021-Feb-26 15:49 < 00:01 Jupiter 1.86515526071016 1.86515478656778 1.86515573485254 3.02492623021345 2.8708742872127 2459272.159095208 0.349418816126039 41.1691205728261 16.0163962986406 -82.0765799122815 3107627.32944442 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
2083-Aug-01 12:51 00:02 Jupiter 1.74638630392121 1.74638542810866 1.74638717973386 2.44440981366012 2.23721043381184 2482073.035534174 1.9205814146011 67.9233510764684 7.31363128543833 74.5085620379393 2084442.48435322 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
2093-Oct-09 01:20 00:02 Jupiter 1.60803934923894 1.60803880818344 1.60803989029573 2.20177622738523 1.94790496262489 2485794.555417787 2.20223014299269 137.629626129965 16.5151117417782 89.140624402713 2427813.99338741 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
2104-Jan-01 04:10 00:02 Jupiter 1.94208363744898 1.94208224566497 1.94208502923333 3.30539205624676 3.17069935865363 2489529.673797081 2.38417693575326 89.8000030750056 24.572002172956 -53.9174047540306 2263284.93144158 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
2166-Jun-02 12:28 00:04 Jupiter 1.69364639574122 1.69364495857273 1.6936478329127 2.25520156930969 2.02131114548063 2512328.019119262 4.16243241723931 153.080590176772 1.54775432040482 80.4628407466315 2168697.70568197 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39
2176-Aug-10 18:26 00:04 Jupiter 1.63857129521754 1.63857008623468 1.63857250421139 2.31483756384723 2.07957159166324 2516050.268085669 4.39976483013427 253.220596254634 14.6990052419232 -86.7057848676918 2501794.223679 T 33 CATAB v2.0e-lin.ifort 2019-May-29 21:36:54 2019-May-29 21:39

Alternate Designations
 1980 CF = 1972 XN2 = 1976 OE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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