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JPL Small-Body Database Browser
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315 Constantia
Classification: Main-belt Asteroid          SPK-ID: 2000315
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1681184173244611 3.2673e-08  
a 2.241672117668947 5.4975e-09 au
q 1.864805749086071 7.3241e-08 au
i 2.428663128332391 3.6743e-06 deg
node 161.6275768548085 8.3637e-05 deg
peri 172.9081397020874 8.4314e-05 deg
M 137.7567151302116 1.2246e-05 deg
tp 2458531.398480810786
(2019-Feb-16.89848081)
4.0892e-05 TDB
period 1225.904281678683
3.36
4.5096e-06
1.235e-08
d
yr
n .2936607738305936 1.0803e-09 deg/d
Q 2.618538486251824 6.4217e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2656  
   data-arc span      33355 days (91.32 yr)  
   first obs. used      1928-10-07  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43115  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:24:18  

Additional Information
 Earth MOID = .854865 au 
 Jupiter MOID = 2.73935 au 
 T_jup = 3.614 
[ 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 12.6   n/a MPO452160  
diameter diameter 6.534 km 0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.345 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Oey, J. (2009) Minor Planet Bull. 36, 4-6.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.217   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

315 Constantia          Discovered 1891-Sep-04 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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