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4399 Ashizuri (1984 UA)
Classification: Main-belt Asteroid          SPK-ID: 2004399
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1721506866608521 2.2716e-08  
a 2.576491120745673 9.9867e-09 au
q 2.132946405133717 6.1907e-08 au
i 12.08063416255037 4.3907e-07 deg
node 244.0410581218349 4.1631e-06 deg
peri 54.0466191927668 6.0818e-06 deg
M 345.195986871198 7.4063e-06 deg
tp 2459262.618128506367
(2021-Feb-17.11812851)
3.1249e-05 TDB
period 1510.571901532885
4.14
8.7827e-06
2.405e-08
d
yr
n .2383203339309319 1.3856e-09 deg/d
Q 3.020035836357629 1.1706e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2556  
   data-arc span      25117 days (68.77 yr)  
   first obs. used      1951-12-01  
   last obs. used      2020-09-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41342  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:18:25  

Additional Information
 Earth MOID = 1.13973 au 
 Jupiter MOID = 2.20769 au 
 T_jup = 3.375 
[ 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 12.62   n/a E2021B10  
diameter diameter 8.785 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.829 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Brinsfield, J.W. (2008) Minor Planet Bull. 35, 179-181.]
[Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.275   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4399 Ashizuri (1984 UA)          Discovered 1984-Oct-21 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 UA = 1970 EV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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