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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 171 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028315785947447 1.6992e-08  
a 2.621627246377226 4.7094e-09 au
q 2.08987845350754 4.3072e-08 au
i 5.180464417099271 8.3292e-07 deg
node 143.4583519830287 3.9809e-06 deg
peri 313.8351148606697 6.4456e-06 deg
M 248.7812664372938 5.6327e-06 deg
tp 2459875.494232956543
(2022-Oct-22.99423296)
2.5191e-05 TDB
period 1550.439555824769
4.24
4.1777e-06
1.144e-08
d
yr
n .232192218424468 6.2565e-10 deg/d
Q 3.153376039246913 5.6646e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3484  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      56832 days (155.60 yr)  
   first obs. used      1866-01-01  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43361  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:08:24  

Additional Information
 Earth MOID = 1.11077 au 
 Jupiter MOID = 2.03295 au 
 T_jup = 3.369 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456142.5 (2012-Aug-03.0) TDB
Reference: JPL 171 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2058494082667502 1.717e-08  
q 2.078448787994291 4.3868e-08 au
tp 2456779.080960599669
(2014-May-01.58096060)
2.004e-05 TDB
node 143.5717911050645 3.9996e-06 deg
peri 313.5173100781903 6.3932e-06 deg
i 5.169309514575996 8.3086e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3484  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      56832 days (155.60 yr)  
   first obs. used      1866-01-01  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43361  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:08:24  

Additional Information
 Jupiter MOID = 2.03295 au 
 T_jup = 3.369 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.948206208071996E-16 -7.511650906932564E-16 2.098070902225505E-13 3.19463331397674E-15 2.014722211636704E-14 2.742651281267122E-15
q -7.511650906932564E-16 1.924401168915204E-15 -5.156710423904002E-13 -9.856297596831879E-15 -4.517226524105447E-14 -7.052714074687448E-15
tp 2.098070902225505E-13 -5.156710423904002E-13 4.015894417021783E-10 -2.370343418365292E-11 9.601868552896138E-11 6.318223532615288E-14
node 3.19463331397674E-15 -9.856297596831879E-15 -2.370343418365292E-11 1.599658483823465E-11 -2.107311476128716E-11 2.418415920225414E-12
peri 2.014722211636704E-14 -4.517226524105447E-14 9.601868552896138E-11 -2.107311476128716E-11 4.087268083242498E-11 -2.644999651106746E-12
i 2.742651281267122E-15 -7.052714074687448E-15 6.318223532615288E-14 2.418415920225414E-12 -2.644999651106746E-12 6.903226622480209E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.91   n/a MPO636060 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. 2020-October); 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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