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53 Kalypso
Classification: Main-belt Asteroid          SPK-ID: 2000053
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 142 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2062499894970235 3.7354e-08  
a 2.616386172489107 5.3248e-09 au
q 2.076756551893071 9.8739e-08 au
i 5.171678342280869 4.5184e-06 deg
node 143.560658964864 4.7009e-05 deg
peri 313.3703894975432 4.7686e-05 deg
M 144.878218133159 8.3033e-06 deg
tp 2456778.412048788457
(2014-Apr-30.91204879)
3.4768e-05 JED
period 1545.792496083292
4.23
4.719e-06
1.292e-08
d
yr
n .2328902494430288 7.1096e-10 deg/d
Q 3.156015793085143 6.4231e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1780  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      54664 days (149.66 yr)  
   first obs. used      1866-01-01  
   last obs. used      2015-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54723  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:01:47  

Additional Information
 Earth MOID = 1.09722 au 
 Jupiter MOID = 2.04051 au 
 T_jup = 3.371 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.81 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
diameter diameter 115.38 km 2.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
rotation period rot_per 9.036 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Pray, D.P. (2010) Minor Planet Bul. 37, 75-76.]
[Pilcher, F. (2011) Minor Planet Bul. 38, 206-208.]
geometric albedo albedo 0.0397   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
B-V BV .705 mag .023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=7; phase (min.=3.20, mean=10.87, max.=26.64) deg.
U-B UB .318 mag .015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=7; phase (min.=3.20, mean=10.87, max.=26.64) deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

53 Kalypso          Discovered 1858-Apr-04 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1951 CD2 = 1951 CE2 = 1972 JB = A917 BD 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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