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 ]  
20215 (1997 GQ26)
Classification: Main-belt Asteroid          SPK-ID: 2020215
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1407800400905274 4.9494e-08  
a 2.798762028255644 1.7588e-08 au
q 2.404752197713969 1.4176e-07 au
i 7.141624308268292 6.0958e-06 deg
node 183.3937726448142 3.472e-05 deg
peri 229.7383646385424 3.9739e-05 deg
M 15.98851374775123 1.8199e-05 deg
tp 2458524.545592479591
(2019-Feb-10.04559248)
8.6356e-05 TDB
period 1710.201907365714
4.68
1.6121e-05
4.414e-08
d
yr
n .2105014609383292 1.9842e-09 deg/d
Q 3.192771858797319 2.0064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      10106 days (27.67 yr)  
   first obs. used      1992-03-03  
   last obs. used      2019-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56806  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 00:05:55  

Additional Information
 Earth MOID = 1.42209 au 
 Jupiter MOID = 2.20381 au 
 T_jup = 3.300 
[ 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 MPO459006  
diameter diameter 3.547 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.169   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20215 (1997 GQ26)          Discovered 1997-Apr-07 by Spacewatch at Kitt Peak
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 GQ26 = 1999 RR163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 23:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin