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633 Zelima (A907 JH)
Classification: Main-belt Asteroid          SPK-ID: 2000633
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08374108718560146 3.637e-08  
a 3.019680753354358 1.224e-08 au
q 2.766809404115028 1.0803e-07 au
i 10.90178494103806 4e-06 deg
node 147.2763301615992 2.1459e-05 deg
peri 190.1067857051241 3.263e-05 deg
M 116.1677780092618 2.4849e-05 deg
tp 2458382.023567788721
(2018-Sep-20.52356779)
0.00013242 TDB
period 1916.637465324584
5.25
1.1653e-05
3.19e-08
d
yr
n .1878289486212427 1.142e-09 deg/d
Q 3.272552102593688 1.3265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2894  
   data-arc span      41253 days (112.94 yr)  
   first obs. used      1907-05-13  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41638  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:09:36  

Additional Information
 Earth MOID = 1.75764 au 
 Jupiter MOID = 2.09172 au 
 T_jup = 3.214 
[ 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 MPO502159 IRAS observations used: 8
diameter diameter 33.387 km 0.538 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.730 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]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2006) Minor Planet Bull. 33, 85-88.]
[Pilcher, F. (2016) Minor Planet Bull. 43, 222-224.]
geometric albedo albedo 0.203   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.765   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.34, mean=8.15, max.=9.95) deg.
U-B UB 0.445   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.34, mean=8.15, max.=9.95) 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
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

633 Zelima (A907 JH)          Discovered 1907-May-12 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A907 JH = 1939 ND = A918 OA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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