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 ]  
305384 (2008 CO39)
Classification: Main-belt Asteroid          SPK-ID: 2305384
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08388849029198696 6.6595e-08  
a 2.9792143435467 2.9813e-08 au
q 2.729292550010335 1.9937e-07 au
i 1.403627093749818 7.2029e-06 deg
node 194.4703568800429 0.00022306 deg
peri 148.3852050723283 0.00022674 deg
M 298.9389722137712 4.3513e-05 deg
tp 2459319.075711389489
(2021-Apr-14.57571139)
0.00022833 TDB
period 1878.239857044818
5.14
2.8194e-05
7.719e-08
d
yr
n .1916688109081107 2.8771e-09 deg/d
Q 3.229136137083066 3.2314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      8601 days (23.55 yr)  
   first obs. used      1995-09-18  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53647  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:09:40  

Additional Information
 Earth MOID = 1.72133 au 
 Jupiter MOID = 2.10491 au 
 T_jup = 3.254 
[ 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 16.7   n/a MPO433967  

305384 (2008 CO39)          Discovered 1995-Sep-18 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1982-Apr-06 23:58 00:01 Hygie 0.0475499902590362 0.047544764724378 0.0475552182073315 2.77234972009089 2.77234942699886 2445066.498383695 1.10591772453274 634.930606418117 102.976525249134 67.6716405520623 63802.6921146921 T 8 CATAB v2.0e-lin.ifort 2019-Jul-14 14:09:43 2019-Jul-14 14:09

Alternate Designations
 2008 CO39 = 1995 SJ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-03 15:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin