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
JPL Small-Body Database Browser
Search: [ help ]  
183898 (2004 CU81)
Classification: Main-belt Asteroid          SPK-ID: 2183898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1440803975231412 3.5674e-08  
a 2.592445747602854 1.4124e-08 au
q 2.218925133731058 9.1623e-08 au
i 3.46672010676639 4.1628e-06 deg
node 127.4108289341582 0.00010171 deg
peri 344.930992750611 0.00010396 deg
M 37.91237651287089 2.2305e-05 deg
tp 2459039.938487791221
(2020-Jul-09.43848779)
9.4149e-05 TDB
period 1524.624666447309
4.17
1.246e-05
3.411e-08
d
yr
n .2361236886183106 1.9297e-09 deg/d
Q 2.965966361474651 1.6159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      9668 days (26.47 yr)  
   first obs. used      1994-10-29  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59947  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:12:06  

Additional Information
 Earth MOID = 1.23558 au 
 Jupiter MOID = 2.13348 au 
 T_jup = 3.402 
[ 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 17.09   n/a MPCxxxxx  

183898 (2004 CU81)          Discovered 2004-Feb-12 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 2004 CU81 = 1996 HY6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-06 02:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin