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JPL Small-Body Database Browser
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9600 (1991 UB3)
Classification: Main-belt Asteroid          SPK-ID: 2009600
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962391770745967 3.8075e-08  
a 2.293256178315077 7.3642e-09 au
q 1.843229473061291 8.9924e-08 au
i 4.930841182379702 3.8236e-06 deg
node 60.05239490444085 5.075e-05 deg
peri 334.9865877310697 5.2065e-05 deg
M 331.0482316018947 1.3472e-05 deg
tp 2458702.511675417290
(2019-Aug-07.01167542)
4.7767e-05 TDB
period 1268.461485503864
3.47
6.11e-06
1.673e-08
d
yr
n .2838083805571748 1.3671e-09 deg/d
Q 2.743282883568862 8.8094e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1165  
   data-arc span      24023 days (65.77 yr)  
   first obs. used      1953-12-07  
   last obs. used      2019-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58278  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:04:41  

Additional Information
 Earth MOID = .850979 au 
 Jupiter MOID = 2.68132 au 
 T_jup = 3.566 
[ 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 14.8   n/a MPO452305  
diameter diameter 2.842 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.380   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9600 (1991 UB3)          Discovered 1991-Oct-31 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19981110/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 UB3 = 1993 HM3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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