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311 Claudia (A891 LA)
Classification: Main-belt Asteroid          SPK-ID: 2000311
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004196076328453374 3.4467e-08  
a 2.898851359036083 1.0729e-08 au
q 2.886687557468727 9.8812e-08 au
i 3.224797580888082 4.0087e-06 deg
node 80.99358086587907 6.74e-05 deg
peri 86.80312474375437 0.00049372 deg
M 144.3198010864338 0.00048891 deg
tp 2458277.795484199834
(2018-Jun-08.29548420)
0.0024483 TDB
period 1802.757651614561
4.94
1.0008e-05
2.74e-08
d
yr
n .1996940629693524 1.1086e-09 deg/d
Q 2.911015160603439 1.0774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3508  
   data-arc span      43066 days (117.91 yr)  
   first obs. used      1902-09-05  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41172  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:14:13  

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 (A891 LA)          Discovered 1891-Jun-11 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A891 LA = 1927 YA = A902 RA = A905 EA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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