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 ]  
18370 (1991 NS2)
Classification: Main-belt Asteroid          SPK-ID: 2018370
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1732680362814255 7.7431e-08  
a 2.5511111224423 1.7795e-08 AU
q 2.109085107921019 2.0246e-07 AU
i 7.663405762529787 5.9409e-06 deg
node 185.0108922870188 5.4658e-05 deg
peri 99.52242064544444 5.7436e-05 deg
M 287.4933845605581 1.8798e-05 deg
tp 2457300.255819599773
(2015-Oct-04.75581960)
7.8229e-05 JED
period 1488.306886232295
4.07
1.5572e-05
4.263e-08
d
yr
n .2418855972045883 2.5308e-09 deg/d
Q 2.99313713696358 2.0878e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      810  
   data-arc span      13028 days (35.67 yr)  
   first obs. used      1979-09-24  
   last obs. used      2015-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5679  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:31:30  

Additional Information
 Earth MOID = 1.11079 AU 
 T_jup = 3.407 
[ 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 13.8 mag n/a MPO296285  

18370 (1991 NS2)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 NS2 = 1979 SK8 = 1987 QB12 = 1987 RY3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jul-05 09:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin