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JPL Small-Body Database Browser
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311 Claudia
Classification: Main-belt Asteroid          SPK-ID: 2000311
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .00419607369207617 3.492e-08  
a 2.898851357033922 1.1755e-08 au
q 2.886687563117432 1.0094e-07 au
i 3.224796564221352 4.3599e-06 deg
node 80.99365751405982 7.0332e-05 deg
peri 86.80346149949858 0.00056206 deg
M 144.3193867648436 0.00055627 deg
tp 2458277.797559730274
(2018-Jun-08.29755973)
0.0027865 TDB
period 1802.757649746885
4.94
1.0965e-05
3.002e-08
d
yr
n .1996940631762376 1.2146e-09 deg/d
Q 2.911015150950411 1.1804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3237  
   data-arc span      42718 days (116.96 yr)  
   first obs. used      1902-09-05  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42251  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:07:27  

Additional Information
 Earth MOID = 1.88314 au 
 Jupiter MOID = 2.04792 au 
 T_jup = 3.285 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.0   n/a MPO265956  
diameter diameter 26.300 km 0.378 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.532 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Slivan, S.M.; Binzel, R.P. (1996) Icarus 124, 452-470.]
[Slivan, S.M.; Binzel, R.P.; Crespo da Silva, L.D.; Kaasalainen, M.; et al. (2003) Icarus 162, 285-307.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
geometric albedo albedo 0.322   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.843   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=9.14, mean=13.63, max.=17.70) deg.
U-B UB 0.437   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=9.14, mean=13.63, max.=17.70) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

311 Claudia          Discovered 1891-Jun-11 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1927 YA = A902 RA = A905 EA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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