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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1719268864036466 3.4636e-08  
a 2.575725568616422 1.1639e-08 au
q 2.132889091373939 9.0003e-08 au
i 12.0823077062274 5.0608e-06 deg
node 244.0434029700305 1.7927e-05 deg
peri 54.09476339330379 2.3631e-05 deg
M 297.465018687234 1.7139e-05 deg
tp 2459262.781907919427
(2021-Feb-17.28190792)
7.2587e-05 TDB
period 1509.898697798415
4.13
1.0235e-05
2.802e-08
d
yr
n .2384265914825388 1.6161e-09 deg/d
Q 3.018562045858906 1.3641e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2122  
   data-arc span      24874 days (68.10 yr)  
   first obs. used      1951-12-01  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44034  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:32:10  

Additional Information
 Earth MOID = 1.14158 au 
 Jupiter MOID = 2.21001 au 
 T_jup = 3.376 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456608.5 (2013-Nov-12.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1722960404794994 3.5023e-08  
q 2.131610549741472 9.1171e-08 au
tp 2456238.022266151417
(2012-Nov-06.52226615)
6.6026e-05 TDB
node 244.2563940033163 1.7899e-05 deg
peri 53.11881212663825 2.3526e-05 deg
i 12.09526223991452 5.064e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2122  
   data-arc span      24874 days (68.10 yr)  
   first obs. used      1951-12-01  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44034  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:32:10  

Additional Information
 Jupiter MOID = 2.21001 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.226626708707974E-15 -3.175041086751579E-15 -5.087288624944264E-13 -2.910965495861847E-16 -1.32203135498842E-13 4.025854823391411E-16
q -3.175041086751579E-15 8.312205756310547E-15 1.416236765317343E-12 -3.84134092895457E-16 3.7003210682615E-13 -4.629337678244599E-16
tp -5.087288624944264E-13 1.416236765317343E-12 4.359438961399291E-9 -9.215186136926898E-12 1.019752655017237E-9 1.15150307169268E-12
node -2.910965495861847E-16 -3.84134092895457E-16 -9.215186136926898E-12 3.203598092393787E-10 -3.147594509056216E-10 -8.09786186010079E-12
peri -1.32203135498842E-13 3.7003210682615E-13 1.019752655017237E-9 -3.147594509056216E-10 5.534721139692016E-10 8.16678876111865E-12
i 4.025854823391411E-16 -4.629337678244599E-16 1.15150307169268E-12 -8.09786186010079E-12 8.16678876111865E-12 2.564365870788925E-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 12.6   n/a MPO473826  
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. 2019-August); 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.]
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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