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 ]  
277370 (2005 US1)
Classification: Main-belt Asteroid          SPK-ID: 2277370
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236786330639845 9.505e-08  
a 2.649191886898797 1.2534e-08 au
q 2.056624266913076 2.5047e-07 au
i 1.324127250789294 8.7012e-06 deg
node 224.9875985368139 0.00023315 deg
peri 186.6458385103827 0.00023409 deg
M 37.04321230553951 1.4778e-05 deg
tp 2458438.440426603789
(2018-Nov-15.94042660)
6.4519e-05 TDB
period 1574.956457378066
4.31
1.1177e-05
3.06e-08
d
yr
n .2285777478567984 1.6222e-09 deg/d
Q 3.241759506884518 1.5337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      9543 days (26.13 yr)  
   first obs. used      1992-11-16  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62129  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:40:35  

Additional Information
 Earth MOID = 1.06705 au 
 Jupiter MOID = 2.13615 au 
 T_jup = 3.355 
[ 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 17.1   n/a MPO455058  

277370 (2005 US1)          Discovered 2005-Oct-22 by Healy, D. at Junk Bond
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ 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 2019-Dec-08 19:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin