Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
229915 (1990 SH)
Classification: Main-belt Asteroid          SPK-ID: 2229915
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2571912124215888 1.119e-07  
a 2.742003722035811 4.0102e-08 AU
q 2.036784460300912 2.998e-07 AU
i 14.56841062216434 2.0537e-05 deg
node 95.65346652451288 4.8874e-05 deg
peri 262.9110992893844 6.9263e-05 deg
M 79.06721014534381 4.153e-05 deg
tp 2456436.254327097918
(2013-May-23.75432710)
0.00018846 JED
period 1658.442760326375
4.54
3.6382e-05
9.961e-08
d
yr
n .2170711034543956 4.762e-09 deg/d
Q 3.44722298377071 5.0416e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      8597 days (23.54 yr)  
   first obs. used      1990-09-17  
   last obs. used      2014-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .70461  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 17:00:02  

Additional Information
 Earth MOID = 1.09149 AU 
 T_jup = 3.256 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO281239  

229915 (1990 SH)          Discovered 1990-Sep-17 by McNaught, R. H. at Siding Spring (413)
Reference: 20100130/Numbers.arcLast Updated: 2010-02-01

Alternate Designations
 1990 SH = 2004 XX85 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-19 17:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin