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 ]  
70044 (1999 DD2)
Classification: Main-belt Asteroid          SPK-ID: 2070044
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010507713584795 4.4519e-08  
a 2.152703070044028 1.2169e-08 au
q 1.719900457305909 1.0059e-07 au
i 5.848012934023718 6.9848e-06 deg
node 326.5673152215349 4.6196e-05 deg
peri 311.7875401807608 5.1835e-05 deg
M 154.7579213250623 2.9011e-05 deg
tp 2458504.564714584576
(2019-Jan-21.06471458)
8.9752e-05 TDB
period 1153.651465597965
3.16
9.7819e-06
2.678e-08
d
yr
n .3120526525863714 2.6459e-09 deg/d
Q 2.585505682782147 1.4615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      7571 days (20.73 yr)  
   first obs. used      1999-02-12  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57277  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:09:06  

Additional Information
 Earth MOID = .710298 au 
 Jupiter MOID = 2.56938 au 
 T_jup = 3.671 
[ 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 17.0   n/a MPO436272  

70044 (1999 DD2)          Discovered 1999-Feb-18 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 DD2 = 2000 SC229 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-31 05:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin