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
JPL Small-Body Database Browser
Search: [ help ]  
91311 (1999 GB7)
Classification: Main-belt Asteroid          SPK-ID: 2091311
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1762834962175591 6.8e-08  
a 2.402986806943896 1.2764e-08 au
q 1.979379891251158 1.6125e-07 au
i 23.20848852887425 7.4518e-06 deg
node 206.2234436267065 9.4822e-06 deg
peri 22.26075476977287 1.3508e-05 deg
M 230.0571480428304 1.1677e-05 deg
tp 2459491.606180906551
(2021-Oct-04.10618091)
4.6749e-05 TDB
period 1360.584460502935
3.73
1.0841e-05
2.968e-08
d
yr
n .2645921737684167 2.1082e-09 deg/d
Q 2.826593722636635 1.5014e-08 au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      7615 days (20.85 yr)  
   first obs. used      1999-03-25  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:27:35  

Additional Information
 Earth MOID = .984085 au 
 Jupiter MOID = 2.16481 au 
 T_jup = 3.395 
[ 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 15.0   n/a MPO453352  
diameter diameter 2.458 km 0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.385   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91311 (1999 GB7)          Discovered 1999-Apr-15 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 GB7 = 2000 SB233 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-26 07:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin