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948 Jucunda (A921 EL)
Classification: Main-belt Asteroid          SPK-ID: 2000948
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1634958482192848 4.6131e-08  
a 3.031908885852725 1.4567e-08 au
q 2.536204370836647 1.4374e-07 au
i 8.653639170177934 4.7328e-06 deg
node 357.0987366803307 2.2298e-05 deg
peri 163.2884406622114 2.4699e-05 deg
M 277.8352392181811 1.1452e-05 deg
tp 2459440.604429936256
(2021-Aug-14.10442994)
6.2788e-05 TDB
period 1928.291316976738
5.28
1.3896e-05
3.805e-08
d
yr
n .1866937826409052 1.3454e-09 deg/d
Q 3.527613400868802 1.6948e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3555  
   data-arc span      36316 days (99.43 yr)  
   first obs. used      1921-03-03  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37125  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:25:22  

Additional Information
 Earth MOID = 1.54587 au 
 Jupiter MOID = 1.45397 au 
 T_jup = 3.205 
[ 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 11.5   n/a MPO452171  
diameter diameter 17.331 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 26.24 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2011) Minor Planet Bull. 38, 211-212.]
geometric albedo albedo 0.130   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

948 Jucunda (A921 EL)          Discovered 1921-Mar-03 by Reinmuth, K. at Heidelberg
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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