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 ]  
146447 (2001 RU8)
Classification: Main-belt Asteroid          SPK-ID: 2146447
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007866411735885 4.4243e-08  
a 2.39231401672571 1.3956e-08 au
q 1.911969320674858 1.0809e-07 au
i 4.322930324908155 6.0447e-06 deg
node 282.4940285688234 0.00011247 deg
peri 328.3914871823928 0.00011467 deg
M 343.5985475388243 2.2168e-05 deg
tp 2458662.075154876688
(2019-Jun-27.57515488)
8.3223e-05 TDB
period 1351.530043334861
3.70
1.1826e-05
3.238e-08
d
yr
n .2663647780346121 2.3308e-09 deg/d
Q 2.87265871277656 1.6758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      7982 days (21.85 yr)  
   first obs. used      1997-06-28  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62629  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:22:14  

Additional Information
 Earth MOID = .899014 au 
 Jupiter MOID = 2.18221 au 
 T_jup = 3.500 
[ 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 16.5   n/a MPO236915  
diameter diameter 3.328 km 0.891 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.040   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

146447 (2001 RU8)          Discovered 2001-Sep-09 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Alternate Designations
 2001 RU8 = 1997 MT2 
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-07 20:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin