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JPL Small-Body Database Browser
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8967 Calandra (4878 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2008967
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1154386996403338 5.5799e-08  
a 3.056987484807606 2.0737e-08 au
q 2.704092824744641 1.6755e-07 au
i 9.742156144584207 6.3268e-06 deg
node 170.6000241368546 2.6832e-05 deg
peri 171.0769312421369 3.5141e-05 deg
M 284.238997749759 2.6387e-05 deg
tp 2459411.348900039000
(2021-Jul-15.84890004)
0.00014565 TDB
period 1952.265672588426
5.35
1.9865e-05
5.439e-08
d
yr
n .1844011320050981 1.8764e-09 deg/d
Q 3.40988214487057 2.3131e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1501  
   data-arc span      17792 days (48.71 yr)  
   first obs. used      1971-05-13  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:08:18  

Additional Information
 Earth MOID = 1.69667 au 
 Jupiter MOID = 2.0146 au 
 T_jup = 3.203 
[ 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 13.1   n/a MPO302120  
diameter diameter 8.382 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.19 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.174   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8967 Calandra           Discovered 1971 May 13 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named for miliaria calandra, or corn bunting.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 4878 T-1 = 1978 RM11 = 1992 EH15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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