Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
7810 (1981 DE)
Classification: Main-belt Asteroid          SPK-ID: 2007810
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07559988535135609 5.2692e-08  
a 2.385849756211762 1.3458e-08 au
q 2.205479788176592 1.2587e-07 au
i 5.477584884042658 5.7698e-06 deg
node 244.0967605934363 6.0041e-05 deg
peri 191.3497766392884 7.2693e-05 deg
M 230.9721565375407 4.1258e-05 deg
tp 2457882.940769943611
(2017-May-09.44076994)
0.00015537 JED
period 1346.055800973159
3.69
1.1389e-05
3.118e-08
d
yr
n .2674480506229613 2.2629e-09 deg/d
Q 2.566219724246932 1.4475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1212  
   data-arc span      15653 days (42.86 yr)  
   first obs. used      1972-10-05  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4994  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:23:10  

Additional Information
 Earth MOID = 1.21993 au 
 Jupiter MOID = 2.62683 au 
 T_jup = 3.525 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO344364  

7810 (1981 DE)          Discovered 1981-Feb-26 by Debehogne, H., DeSanctis, G. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 DE = 1972 TG4 = 1972 VL = 1977 AD1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-13 02:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin