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204 Kallisto (A879 TA)
Classification: Main-belt Asteroid          SPK-ID: 2000204
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1741069404707791 3.3036e-08  
a 2.671373928720675 8.4954e-09 au
q 2.206269187137714 8.776e-08 au
i 8.285504672112216 4.0695e-06 deg
node 205.1050656813648 2.5761e-05 deg
peri 55.30105692069675 2.8224e-05 deg
M 186.8027908802685 1.2468e-05 deg
tp 2459767.753433160939
(2022-Jul-07.25343316)
5.65e-05 TDB
period 1594.778792001163
4.37
7.6075e-06
2.083e-08
d
yr
n .2257366362066204 1.0768e-09 deg/d
Q 3.136478670303637 9.9745e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3043  
   data-arc span      51253 days (140.32 yr)  
   first obs. used      1879-10-08  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46224  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:20:41  

Additional Information
 Earth MOID = 1.20391 au 
 Jupiter MOID = 1.94941 au 
 T_jup = 3.344 
[ 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 8.9   n/a MPO502154 IRAS observations used: 24
diameter diameter 48.566 km 0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 19.489 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2010) Minor Planet Bull. 37, 21-24.]
geometric albedo albedo 0.194   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.813   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.52, mean=10.89, max.=14.66) deg.
U-B UB 0.415   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.52, mean=10.89, max.=14.66) 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

204 Kallisto (A879 TA)          Discovered 1879-Oct-08 by Palisa, J. at Pola
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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