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JPL Small-Body Database Browser
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53 Kalypso
Classification: Main-belt Asteroid          SPK-ID: 2000053
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 158 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2055675539671132 3.276e-08  
a 2.616773602009664 5.1249e-09 au
q 2.078849853358825 8.6184e-08 au
i 5.171236716881636 4.3719e-06 deg
node 143.5538596316308 4.1895e-05 deg
peri 313.2761609069267 4.2697e-05 deg
M 64.33644621039768 8.8324e-06 deg
tp 2458324.186426879700
(2018-Jul-24.68642688)
3.7473e-05 TDB
period 1546.135855841411
4.23
4.5421e-06
1.244e-08
d
yr
n .2328385300941663 6.8401e-10 deg/d
Q 3.154697350660503 6.1784e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2828  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      56110 days (153.62 yr)  
   first obs. used      1866-01-01  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4681  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:04:26  

Additional Information
 Earth MOID = 1.09974 au 
 Jupiter MOID = 2.03523 au 
 T_jup = 3.371 
[ 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 8.81   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
diameter diameter 97.262 km 26.598 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 9.036 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Pray, D.P. (2010) Minor Planet Bull. 37, 75-76.]
[Pilcher, F. (2011) Minor Planet Bull. 38, 206-208.]
[Franco, L.; Pilcher, F.; Pray, D.P.; Maurice, A. (2016) Minor Planet Bull. 43, 224-226.]
geometric albedo albedo 0.028   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.705   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=3.20, mean=10.87, max.=26.64) deg.
U-B UB 0.318   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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