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660 Crescentia (A908 AN)
Classification: Main-belt Asteroid          SPK-ID: 2000660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 88 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076348261707142 4.0015e-08  
a 2.534029845012378 6.6109e-09 au
q 2.261279983133069 1.0212e-07 au
i 15.1995822825015 3.39e-06 deg
node 156.9275745817372 1.5786e-05 deg
peri 105.8192927621313 2.1232e-05 deg
M 216.8249475891488 1.5577e-05 deg
tp 2459786.477398321493
(2022-Jul-25.97739832)
6.4545e-05 TDB
period 1473.384223324018
4.03
5.7657e-06
1.579e-08
d
yr
n .2443354518808574 9.5615e-10 deg/d
Q 2.806779706891687 7.3224e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3629  
   data-arc span      40833 days (111.79 yr)  
   first obs. used      1909-06-07  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39039  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:43:17  

Additional Information
 Earth MOID = 1.29703 au 
 Jupiter MOID = 2.38494 au 
 T_jup = 3.392 
[ 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 9.08   n/a E2021B10 IRAS observations used: 9
diameter diameter 42.302 km 0.352 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.9116 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2009) Minor Planet Bull. 36, 109-116.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 226-230.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Cikignese, A. (2019) Minor Planet Bull. 46, 10.]
geometric albedo albedo 0.332   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.860   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=11.13, mean=16.71, max.=19.70) deg.
U-B UB 0.475   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=11.13, mean=16.71, max.=19.70) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

660 Crescentia (A908 AN)          Discovered 1908-Jan-08 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A908 AN = 1961 CF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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