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 ]  
136838 (1997 WG22)
Classification: Main-belt Asteroid          SPK-ID: 2136838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1014942498266477 4.3576e-08  
a 2.837386180917179 2.275e-08 au
q 2.549407799016493 1.1677e-07 au
i 16.10179350832627 5.1232e-06 deg
node 50.14163668186933 1.4703e-05 deg
peri 203.0991967499058 2.9494e-05 deg
M 144.8194365446983 2.3572e-05 deg
tp 2458694.235923147361
(2019-Jul-29.73592315)
0.00011634 TDB
period 1745.726082761819
4.78
2.0996e-05
5.748e-08
d
yr
n .2062179190394311 2.4802e-09 deg/d
Q 3.125364562817865 2.506e-08 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      10271 days (28.12 yr)  
   first obs. used      1992-11-26  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53705  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:19:08  

Additional Information
 Earth MOID = 1.54313 au 
 Jupiter MOID = 1.90223 au 
 T_jup = 3.245 
[ 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 14.83   n/a MPCxxxxx  
diameter diameter 3.115 km 0.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.263   0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136838 (1997 WG22)          Discovered 1997-Nov-28 by BAO Schmidt CCD Asteroid Program at Xinglong
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 2021-Jul-23 23:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin