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 ]  
6957 (1988 HA)
Classification: Main-belt Asteroid          SPK-ID: 2006957
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08406382721074748 4.3367e-08  
a 2.531855131397014 1.3182e-08 au
q 2.319017699108611 1.1409e-07 au
i 1.20778132297548 4.45e-06 deg
node 206.8816907187863 0.00019028 deg
peri 18.78587859660475 0.00019215 deg
M 347.9720747733915 2.8576e-05 deg
tp 2457649.663741253975
(2016-Sep-18.16374125)
0.0001169 JED
period 1471.487934783376
4.03
1.1492e-05
3.146e-08
d
yr
n .2446503239953491 1.9107e-09 deg/d
Q 2.744692563685417 1.429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1715  
   data-arc span      14594 days (39.96 yr)  
   first obs. used      1976-05-02  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48468  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:57:30  

Additional Information
 Earth MOID = 1.30929 au 
 Jupiter MOID = 2.23021 au 
 T_jup = 3.445 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO279588  

6957 (1988 HA)          Discovered 1988-Apr-16 by Ueda, S., Kaneda, H. at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 HA = 1976 JJ1 = 1986 WA7 = 1993 SS 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-05 18:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin