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302 Clarissa (A890 VA)
Classification: Main-belt Asteroid          SPK-ID: 2000302
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1104779746151377 2.9944e-08  
a 2.407254998510576 5.7224e-09 au
q 2.141306341892961 7.1737e-08 au
i 3.411649737757925 3.6569e-06 deg
node 7.793014798602406 5.2182e-05 deg
peri 54.48631570634336 5.4869e-05 deg
M 223.7459518280633 1.7274e-05 deg
tp 2459516.831339599532
(2021-Oct-29.33133960)
6.6235e-05 TDB
period 1364.211080328955
3.74
4.8644e-06
1.332e-08
d
yr
n .2638887817222481 9.4096e-10 deg/d
Q 2.673203655128191 6.3546e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2969  
   data-arc span      46935 days (128.50 yr)  
   first obs. used      1892-03-21  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45426  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:25:42  

Additional Information
 Earth MOID = 1.15622 au 
 Jupiter MOID = 2.59522 au 
 T_jup = 3.511 
[ 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 11.1   n/a MPO473765 IRAS observations used: 21
diameter diameter 38.53 km 3.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
rotation period rot_per 14.381 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Chevreton, M.; Herpe, G.; Barucci, M.A.; Fulchignoni, M. (1993) Planet. Space Sci. 41, 563-567.]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
geometric albedo albedo 0.0524   0.010 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
B-V BV 0.639   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=1.96, mean=13.41, max.=24.65) deg.
U-B UB 0.294   0.037 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=1.96, mean=13.41, max.=24.65) deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

302 Clarissa (A890 VA)          Discovered 1890-Nov-14 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A890 VA = 1929 CK1 = 1946 UN = 1948 ED = 1953 NN = A909 YA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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