Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
136665 (1995 QB9)
Classification: Main-belt Asteroid          SPK-ID: 2136665
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03846798636070693 4.6308e-08  
a 3.094204424714615 3.1861e-08 au
q 2.975176611107455 1.4731e-07 au
i 11.46566192041789 5.6084e-06 deg
node 175.4907859355053 2.6017e-05 deg
peri 69.15733794360223 7.7567e-05 deg
M 198.2034438967524 7.3658e-05 deg
tp 2459493.987957886794
(2021-Oct-06.48795789)
0.00040894 TDB
period 1988.025410343017
5.44
3.0706e-05
8.407e-08
d
yr
n .1810842045212516 2.7969e-09 deg/d
Q 3.213232238321776 3.3087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      8916 days (24.41 yr)  
   first obs. used      1995-06-28  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60748  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 12:23:11  

Additional Information
 Earth MOID = 1.98802 au 
 Jupiter MOID = 1.79563 au 
 T_jup = 3.192 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457010.5 (2014-Dec-19.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03905986855251566 4.6669e-08  
q 2.975090938751553 1.4819e-07 au
tp 2457491.403959354254
(2016-Apr-12.90395935)
0.00039607 TDB
node 175.5085157697869 2.6029e-05 deg
peri 66.33998392290128 7.5998e-05 deg
i 11.4605075711527 5.6067e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      8916 days (24.41 yr)  
   first obs. used      1995-06-28  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60748  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 12:23:11  

Additional Information
 Jupiter MOID = 1.79563 au 
 T_jup = 3.192 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.178014232452826E-15 -6.76493962245298E-15 -1.740429217547165E-12 -3.021643269723262E-15 -3.307886178925307E-13 -1.747610814194585E-15
q -6.76493962245298E-15 2.195894504000674E-14 6.857435378160591E-12 7.018118202311014E-15 1.245587123144363E-12 6.156995556671405E-15
tp -1.740429217547165E-12 6.857435378160591E-12 1.568752155700425E-7 5.847080374484544E-11 2.831141144819445E-8 6.541514704310149E-12
node -3.021643269723262E-15 7.018118202311014E-15 5.847080374484544E-11 6.775026022049679E-10 -6.526979982807247E-10 9.017636923676813E-13
peri -3.307886178925307E-13 1.245587123144363E-12 2.831141144819445E-8 -6.526979982807247E-10 5.775695066058356E-9 3.067773006141826E-13
i -1.747610814194585E-15 6.156995556671405E-15 6.541514704310149E-12 9.017636923676813E-13 3.067773006141826E-13 3.143544953302151E-11

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-15 19:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin