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1245 Calvinia (1932 KF)
Classification: Main-belt Asteroid          SPK-ID: 2001245
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08278565692144074 4.3367e-08  
a 2.891319846856781 1.0766e-08 au
q 2.651960033964743 1.2695e-07 au
i 2.893962542748459 4.0216e-06 deg
node 151.7185796330845 8.0738e-05 deg
peri 208.0107877943559 8.38e-05 deg
M 257.9132961578136 2.4209e-05 deg
tp 2459709.724527334297
(2022-May-10.22452733)
0.00012168 TDB
period 1795.736593902952
4.92
1.003e-05
2.746e-08
d
yr
n .2004748364667205 1.1197e-09 deg/d
Q 3.130679659748819 1.1657e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3236  
   data-arc span      42009 days (115.01 yr)  
   first obs. used      1906-03-17  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41799  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:19:08  

Additional Information
 Earth MOID = 1.64695 au 
 Jupiter MOID = 2.2682 au 
 T_jup = 3.283 
[ 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 9.98   n/a MPCxxxxx  
diameter diameter 29.751 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.8523 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Lagerkvist, C.-I. (1978) Astron. Astrophys. Suppl. Ser. 31, 361-381.]
[Lagerkvist, C.-I. (1978) Astron. Astrophys. Suppl. Ser. 34, 203-205.]
[Tedesco, E.F. (1979) PhD Dissertation, New. Mex. State Univ. 280pp.]
[Erikson, A. (1990) in Asteroids, Comets, Meteors III. C.-I. Lagerkvist, H. Rickman, B.A. Lindblad, M. Lindgren, eds. Uppsala, p. 55-58.]
[Slivan, S.M.; Binzel, R.P.; Boroumand, S.C.; Pan M.W.; et al. (2008) Icarus 195, 226-276.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Brines, P.; Lozano, J.; Rodrigo, O.; Fornas, A.; et al. (2017) Minor Planet Bull. 44, 145-149.]
geometric albedo albedo 0.221   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.847   0.041 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=.41, mean=4.62, max.=13.58) deg.
U-B UB 0.474   0.059 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=.41, mean=5.85, max.=13.58) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1245 Calvinia (1932 KF)          Discovered 1932-May-26 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1932 KF = 1948 VT = 1950 CP = A906 FB = A914 YB = A916 DC = A917 KE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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