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90785 (1994 JU2)
Classification: Main-belt Asteroid          SPK-ID: 2090785
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1479096606768164 5.5574e-08  
a 2.604343467130617 1.819e-08 au
q 2.219135908621444 1.4997e-07 au
i 10.25207820241726 6.0453e-06 deg
node 220.3871953642501 2.3816e-05 deg
peri 165.685520179649 2.9472e-05 deg
M 5.484805656544688 2.3247e-05 deg
tp 2459373.111382086193
(2021-Jun-07.61138209)
9.8959e-05 TDB
period 1535.132323042916
4.20
1.6083e-05
4.403e-08
d
yr
n .2345074718291472 2.4568e-09 deg/d
Q 2.989551025639791 2.088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      683  
   data-arc span      9931 days (27.19 yr)  
   first obs. used      1994-05-02  
   last obs. used      2021-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52207  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:04:35  

Additional Information
 Earth MOID = 1.22484 au 
 Jupiter MOID = 2.45915 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 15.22   n/a MPO637235  
diameter diameter 4.742 km 0.447 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.079   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90785 (1994 JU2)          Discovered 1994-May-02 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1994 JU2 = 2000 WH40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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