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 ]  
49121 (1998 SL14)
Classification: Main-belt Asteroid          SPK-ID: 2049121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1939981139744437 3.24e-08  
a 2.346405996794311 8.5765e-09 au
q 1.89120765879789 7.7101e-08 au
i 5.511546025768396 3.9194e-06 deg
node 81.82881451384286 4.0636e-05 deg
peri 248.8903559766226 4.1946e-05 deg
M 22.77826260500919 1.0721e-05 deg
tp 2458917.434389465335
(2020-Mar-08.93438947)
3.8985e-05 TDB
period 1312.813901175379
3.59
7.1979e-06
1.971e-08
d
yr
n .2742201310312812 1.5035e-09 deg/d
Q 2.801604334790733 1.024e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1237  
   data-arc span      8108 days (22.20 yr)  
   first obs. used      1998-08-19  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50534  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:34:11  

Additional Information
 Earth MOID = .888709 au 
 Jupiter MOID = 2.56091 au 
 T_jup = 3.529 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO385131  
diameter diameter 2.232 km 0.340 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.355   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49121 (1998 SL14)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SL14 = 2001 KQ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-03 09:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin