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4221 Picasso (1988 EJ)
Classification: Main-belt Asteroid          SPK-ID: 2004221
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268925211999636 4.8599e-08  
a 2.619154193421053 1.0772e-08 au
q 2.286803114406398 1.2475e-07 au
i 17.1876920003947 5.3067e-06 deg
node 187.9419406096688 1.1905e-05 deg
peri 38.74941096667647 1.913e-05 deg
M 183.3028377868502 1.5526e-05 deg
tp 2459760.418646099567
(2022-Jun-29.91864610)
6.7788e-05 TDB
period 1548.246214989213
4.24
9.5514e-06
2.615e-08
d
yr
n .2325211562054477 1.4345e-09 deg/d
Q 2.951505272435707 1.2139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2274  
   data-arc span      24047 days (65.84 yr)  
   first obs. used      1954-04-02  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:07:24  

Additional Information
 Earth MOID = 1.3023 au 
 Jupiter MOID = 2.05236 au 
 T_jup = 3.331 
[ 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 12.7   n/a MPO452224  
diameter diameter 10.823 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.1114 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Benishek, V. (2018) Minor Planet Bull. 45, 386-389.]
[Percy, S.C. (2018) Minor Planet Bull. 45, 326-328.]
[Percy, S. (2018) Posting on CALL web site: http://www.minorplanet.info/call.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2018) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.167   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4221 Picasso (1988 EJ)          Discovered 1988-Mar-13 by Alu, J. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 EJ = 1954 GD = 1984 JH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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