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 ]  
66594 (1999 RO176)
Classification: Main-belt Asteroid          SPK-ID: 2066594
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1958448205760171 3.6639e-08  
a 2.608934300965238 1.628e-08 au
q 2.097988030898084 9.5781e-08 au
i 13.26259639458183 8.3109e-06 deg
node 179.0900995941814 1.9882e-05 deg
peri 122.2580119585754 3.1704e-05 deg
M 5.115930001442814 2.4962e-05 deg
tp 2458978.626653448952
(2020-May-09.12665345)
0.00010662 TDB
period 1539.193217295083
4.21
1.4407e-05
3.944e-08
d
yr
n .2338887645520227 2.1893e-09 deg/d
Q 3.119880571032391 1.9469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      610  
   data-arc span      7712 days (21.11 yr)  
   first obs. used      1998-03-20  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57775  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:26:00  

Additional Information
 Earth MOID = 1.11679 au 
 Jupiter MOID = 2.29549 au 
 T_jup = 3.346 
[ 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 15.3   n/a MPO432218  

66594 (1999 RO176)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RO176 = 1998 HE131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-19 13:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin