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9404 (1994 UQ11)
Classification: Main-belt Asteroid          SPK-ID: 2009404
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09344975598626068 5.1371e-08  
a 2.744952945592605 2.3231e-08 AU
q 2.488437762633208 1.4188e-07 AU
i 4.974994515965098 8.5824e-06 deg
node 21.41804028144873 6.8982e-05 deg
peri 67.01905424792089 8.5691e-05 deg
M 65.5935992345316 4.9056e-05 deg
tp 2456497.836713001420
(2013-Jul-24.33671300)
0.00022658 JED
period 1661.119142584383
4.55
2.1088e-05
5.774e-08
d
yr
n .2167213601788424 2.7512e-09 deg/d
Q 3.001468128552001 2.5402e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      962  
   data-arc span      8940 days (24.48 yr)  
   first obs. used      1989-09-25  
   last obs. used      2014-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53756  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:56:35  

Additional Information
 Earth MOID = 1.50923 AU 
 T_jup = 3.336 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO279615  

9404 (1994 UQ11)          Discovered 1994-Oct-26 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 UQ11 = 1989 SS8 = 1992 GR4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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