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 ]  
7941 (1991 NE1)
Classification: Main-belt Asteroid          SPK-ID: 2007941
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04589840392105963 7.4403e-08  
a 3.176177706029659 3.3787e-08 AU
q 3.030396218753245 2.417e-07 AU
i 8.537325227319874 7.3415e-06 deg
node 304.793603151099 5.0869e-05 deg
peri 78.57016904734141 9.1561e-05 deg
M 345.2653278888914 7.5244e-05 deg
tp 2457085.124008185138
(2015-Mar-03.62400819)
0.00043209 JED
period 2067.548074156459
5.66
3.2991e-05
9.032e-08
d
yr
n .1741192886878225 2.7783e-09 deg/d
Q 3.321959193306073 3.5338e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      22225 days (60.85 yr)  
   first obs. used      1953-12-07  
   last obs. used      2014-10-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52904  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:05:49  

Additional Information
 Earth MOID = 2.04741 AU 
 T_jup = 3.182 
[ 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 12.7 mag n/a MPO309213  

7941 (1991 NE1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Dec-17 21:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin