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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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08374108733338963 3.636e-08  
a 3.019680753219246 1.2235e-08 au
q 2.766809403544957 1.0799e-07 au
i 10.90178494416779 3.9984e-06 deg
node 147.2763301721553 2.1447e-05 deg
peri 190.1067859909074 3.2613e-05 deg
M 116.1677777713295 2.4842e-05 deg
tp 2458382.023569096981
(2018-Sep-20.52356910)
0.00013238 TDB
period 1916.637465195947
5.25
1.1649e-05
3.189e-08
d
yr
n .187828948633849 1.1416e-09 deg/d
Q 3.272552102893535 1.326e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2905  
   data-arc span      41405 days (113.36 yr)  
   first obs. used      1907-05-13  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41566  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:28:20  

Additional Information
 Earth MOID = 1.75764 au 
 Jupiter MOID = 2.09172 au 
 T_jup = 3.214 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456294.5 (2013-Jan-02.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08521818326833322 3.6675e-08  
q 2.760747499233683 1.0915e-07 au
tp 2456448.051921978490
(2013-Jun-04.55192198)
0.0001295 TDB
node 147.3876820782008 2.1393e-05 deg
peri 186.7950781027128 3.2152e-05 deg
i 10.91486901752348 4.0047e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2905  
   data-arc span      41405 days (113.36 yr)  
   first obs. used      1907-05-13  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41566  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:28:20  

Additional Information
 Jupiter MOID = 2.09172 au 
 T_jup = 3.214 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.34506336384809E-15 -3.983456462562261E-15 1.112962109304904E-13 -1.958300818772281E-15 1.372928510727793E-14 1.037929799623631E-15
q -3.983456462562261E-15 1.191308562577054E-14 -4.123965856058238E-13 6.287810960185952E-15 -6.048503141458404E-14 -2.744993383581383E-15
tp 1.112962109304904E-13 -4.123965856058238E-13 1.677042725124537E-8 -1.736228575276263E-11 3.131788352826134E-9 -2.039056662084564E-12
node -1.958300818772281E-15 6.287810960185952E-15 -1.736228575276263E-11 4.576657124458354E-10 -4.521510127573891E-10 3.897515580379969E-12
peri 1.372928510727793E-14 -6.048503141458404E-14 3.131788352826134E-9 -4.521510127573891E-10 1.033757513849224E-9 -4.221741907940148E-12
i 1.037929799623631E-15 -2.744993383581383E-15 -2.039056662084564E-12 3.897515580379969E-12 -4.221741907940148E-12 1.603780748427786E-11

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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