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 ]  
14423 (1991 SM2)
Classification: Main-belt Asteroid          SPK-ID: 2014423
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06583678647399623 3.0894e-08  
a 2.272333562749963 6.7068e-09 au
q 2.122730423181499 6.9486e-08 au
i 6.941089976467339 3.6447e-06 deg
node 15.67857445719706 2.9936e-05 deg
peri 58.6017996001642 4.5548e-05 deg
M 80.04613513379751 3.2754e-05 deg
tp 2458722.308139808104
(2019-Aug-26.80813981)
0.00011393 TDB
period 1251.141850904891
3.43
5.5391e-06
1.517e-08
d
yr
n .2877371576529307 1.2739e-09 deg/d
Q 2.421936702318428 7.1484e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1853  
   data-arc span      10457 days (28.63 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47585  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:01:18  

Additional Information
 Earth MOID = 1.14582 au 
 Jupiter MOID = 2.72106 au 
 T_jup = 3.599 
[ 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 14.6   n/a MPO452373  
diameter diameter 3.068 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.430   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14423 (1991 SM2)          Discovered 1991-Sep-16 by Holt, H. E. at Palomar
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 SM2 = 1993 FU10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-10 05:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin