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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
305381 (2008 CU29)
Classification: Main-belt Asteroid          SPK-ID: 2305381
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07521643641997529 1.1681e-07  
a 3.120302111111894 6.2301e-08 au
q 2.885604105760331 4.0907e-07 au
i 17.47684903021437 9.5749e-06 deg
node 325.4880544455683 2.4346e-05 deg
peri 345.3861087842858 6.8617e-05 deg
M 343.9464395798691 5.8342e-05 deg
tp 2459486.276415305979
(2021-Sep-28.77641531)
0.00032496 TDB
period 2013.230004082106
5.51
6.0295e-05
1.651e-07
d
yr
n .1788171243574006 5.3555e-09 deg/d
Q 3.355000116463456 6.6987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      5853 days (16.02 yr)  
   first obs. used      2005-07-31  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49489  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 04:08:28  

Additional Information
 Earth MOID = 1.87425 au 
 Jupiter MOID = 1.98073 au 
 T_jup = 3.141 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457457.5 (2016-Mar-10.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07329117753897035 1.1735e-07  
q 2.891194114860854 4.0979e-07 au
tp 2457476.513420506600
(2016-Mar-29.01342051)
0.00036412 TDB
node 325.5154039586732 2.4358e-05 deg
peri 345.7958447247367 6.9772e-05 deg
i 17.47196276903429 9.5721e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      5853 days (16.02 yr)  
   first obs. used      2005-07-31  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49489  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 04:08:28  

Additional Information
 Jupiter MOID = 1.98073 au 
 T_jup = 3.141 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.376999394214972E-14 -4.786376278807974E-14 2.329908096785934E-11 2.426154494904472E-14 4.096642416378656E-12 -2.594131074985309E-14
q -4.786376278807974E-14 1.679274667037199E-13 -8.511895230789305E-11 -7.938952310904017E-14 -1.498802258410026E-11 1.01322421073411E-13
tp 2.329908096785934E-11 -8.511895230789305E-11 1.325812260454202E-7 6.031102803757187E-11 2.38639000359204E-8 -8.128473420478693E-11
node 2.426154494904472E-14 -7.938952310904017E-14 6.031102803757187E-11 5.933008854466311E-10 -5.541896130754814E-10 1.856738107933139E-11
peri 4.096642416378656E-12 -1.498802258410026E-11 2.38639000359204E-8 -5.541896130754814E-10 4.868173197070719E-9 -3.241409377415059E-11
i -2.594131074985309E-14 1.01322421073411E-13 -8.128473420478693E-11 1.856738107933139E-11 -3.241409377415059E-11 9.162516496017582E-11

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 16.07   n/a MPO638656  
diameter diameter 3.978 km 0.492 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305381 (2008 CU29)          Discovered 2008-Feb-02 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ 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-Sep-21 15:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin