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136665 (1995 QB9)
Classification: Main-belt Asteroid          SPK-ID: 2136665
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03846798963764998 4.7568e-08  
a 3.094204426839861 3.2609e-08 au
q 2.975176603011414 1.4976e-07 au
i 11.46566202118564 5.7394e-06 deg
node 175.4907863125945 2.6221e-05 deg
peri 69.15733452403602 7.8254e-05 deg
M 198.2034464085958 7.4082e-05 deg
tp 2459493.987944936193
(2021-Oct-06.48794494)
0.00041095 TDB
period 1988.025412391221
5.44
3.1427e-05
8.604e-08
d
yr
n .1810842043346859 2.8626e-09 deg/d
Q 3.213232250668308 3.3863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      8569 days (23.46 yr)  
   first obs. used      1995-06-28  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6005  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:48:43  

Additional Information
 Earth MOID = 1.98802 au 
 Jupiter MOID = 1.79563 au 
 T_jup = 3.192 
[ 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 15.4   n/a MPO422494  
diameter diameter 3.080 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.155   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136665 (1995 QB9)          Discovered 1995-Aug-28 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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