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JPL Small-Body Database Browser
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4842 Atsushi (1989 WK)
Classification: Main-belt Asteroid          SPK-ID: 2004842
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1567145469714465 2.6822e-08  
a 2.250968470410138 5.7247e-09 au
q 1.898208966322804 5.9607e-08 au
i 2.468582431847812 3.4936e-06 deg
node 225.4690275651214 7.0392e-05 deg
peri 77.93544254543552 7.1339e-05 deg
M 117.0258881677333 1.1549e-05 deg
tp 2458599.511433410507
(2019-Apr-26.01143341)
3.9431e-05 TDB
period 1233.538033612803
3.38
4.7057e-06
1.288e-08
d
yr
n .2918434537001076 1.1133e-09 deg/d
Q 2.603727974497473 6.6218e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2368  
   data-arc span      26081 days (71.41 yr)  
   first obs. used      1948-09-07  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47363  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:23:21  

Additional Information
 Earth MOID = .884812 au 
 Jupiter MOID = 2.61032 au 
 T_jup = 3.610 
[ 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 13.5   n/a MPO337293  
diameter diameter 4.596 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.400   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4842 Atsushi (1989 WK)          Discovered 1989-Nov-21 by Ueda and Kaneda at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 WK = 1948 RE = 1962 XF1 = 1979 YF5 = 1985 OG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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