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53 Kalypso (A858 GA)
Classification: Main-belt Asteroid          SPK-ID: 2000053
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 163 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2048081417894144 3.2558e-08  
a 2.618931682383882 4.9836e-09 au
q 2.082553151041414 8.5503e-08 au
i 5.171678809282962 4.05e-06 deg
node 143.5179367931948 4.0746e-05 deg
peri 313.4848784050719 4.1469e-05 deg
M 157.271030002697 8.8337e-06 deg
tp 2458324.213198907831
(2018-Jul-24.71319891)
3.6734e-05 TDB
period 1548.048921591001
4.24
4.4187e-06
1.21e-08
d
yr
n .2325507902101773 6.6379e-10 deg/d
Q 3.155310213726349 6.0043e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3194  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      56537 days (154.79 yr)  
   first obs. used      1866-01-01  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:33:55  

Additional Information
 Earth MOID = 1.10331 au 
 Jupiter MOID = 2.0327 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455761.5 (2011-Jul-19.0) TDB
Reference: JPL 163 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2054526417722618 3.2672e-08  
q 2.080142657901923 8.5985e-08 au
tp 2455232.125895114844
(2010-Feb-04.62589511)
3.2095e-05 TDB
node 143.5838688063017 4.0803e-05 deg
peri 313.4958478541076 4.1513e-05 deg
i 5.168597382556031 4.0479e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3194  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      56537 days (154.79 yr)  
   first obs. used      1866-01-01  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:33:55  

Additional Information
 Jupiter MOID = 2.0327 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.06747767451218E-15 -2.806243831175275E-15 3.597862478761296E-14 2.148413086820452E-15 -4.578047005388268E-15 -1.23267046906417E-16
q -2.806243831175275E-15 7.393424357673092E-15 -4.517207860018918E-14 -3.966175220221837E-15 2.173283558888124E-14 4.818284874560455E-16
tp 3.597862478761296E-14 -4.517207860018918E-14 1.03006772505089E-9 2.049130382890538E-12 2.609880461330987E-10 -4.409107446124207E-13
node 2.148413086820452E-15 -3.966175220221837E-15 2.049130382890538E-12 1.664899107913839E-9 -1.656699930830669E-9 2.821473107081163E-12
peri -4.578047005388268E-15 2.173283558888124E-14 2.609880461330987E-10 -1.656699930830669E-9 1.723290172736905E-9 -2.882895343672042E-12
i -1.23267046906417E-16 4.818284874560455E-16 -4.409107446124207E-13 2.821473107081163E-12 -2.882895343672042E-12 1.638583098824257E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.9   n/a MPO473760 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-August); 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 (A858 GA)          Discovered 1858-Apr-04 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A858 GA = 1951 CD2 = 1951 CE2 = 1972 JB = A917 BD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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