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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739638203355948 1.3819e-08  
a 2.671597151582281 7.7262e-09 au
q 2.206835904695334 3.6882e-08 au
i 8.285076773109951 2.6019e-07 deg
node 205.0939528272706 1.477e-06 deg
peri 55.33500739315728 5.1104e-06 deg
M 231.9083844706619 7.1453e-06 deg
tp 2459768.009435889652
(2022-Jul-07.50943589)
3.3159e-05 TDB
period 1594.9786883083
4.37
6.9189e-06
1.894e-08
d
yr
n .2257083449696941 9.7911e-10 deg/d
Q 3.136358398469227 9.0702e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3668  
   data-arc span      51663 days (141.45 yr)  
   first obs. used      1879-10-08  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43562  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:01:56  

Additional Information
 Earth MOID = 1.20286 au 
 Jupiter MOID = 1.94854 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 8.91   n/a E2021B10 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. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2010) Minor Planet Bull. 37, 21-24.]
[Franco, L.; Marchini, A.; Scarfi, G.; Bacci, P.; et al. (2020) Minor Planet Bull. 47, 144-147.]
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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