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 ]  
243587 (1998 DU9)
Classification: Mars-crossing Asteroid          SPK-ID: 2243587
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 .336039623061147 2.8025e-07  
a 2.060004683784303 4.5069e-08 au
q 1.367761486341229 5.5091e-07 au
i 4.943094321718826 1.2834e-05 deg
node 250.0532532874636 8.3145e-05 deg
peri 278.1569881099097 0.00011082 deg
M 187.2501119043243 0.00012334 deg
tp 2459518.722198634267
(2021-Oct-31.22219863)
0.00038691 TDB
period 1079.94276329147
2.96
3.5441e-05
9.703e-08
d
yr
n .3333509999203894 1.094e-08 deg/d
Q 2.752247881227378 6.0214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      7175 days (19.64 yr)  
   first obs. used      1998-02-22  
   last obs. used      2017-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59046  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:22:43  

Additional Information
 Earth MOID = .387184 au 
 Jupiter MOID = 2.25429 au 
 T_jup = 3.707 
[ 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 18.2   n/a MPO266671  

243587 (1998 DU9)          Discovered 1998-Feb-22 by NEAT at Haleakala
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ 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 2020-Aug-08 04:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin