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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
66143 (1998 SE161)
Classification: Main-belt Asteroid          SPK-ID: 2066143
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1002542944067896 3.9014e-08  
a 3.058634293935391 1.874e-08 au
q 2.751993070948489 1.2335e-07 au
i 10.19759901218145 5.101e-06 deg
node 223.7312997975558 2.7125e-05 deg
peri 197.477998172065 3.9375e-05 deg
M 342.6464909326462 2.8167e-05 deg
tp 2459094.683443207397
(2020-Sep-02.18344321)
0.00015308 TDB
period 1953.843422852637
5.35
1.7957e-05
4.916e-08
d
yr
n .1842522260429627 1.6934e-09 deg/d
Q 3.365275516922293 2.0619e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1189  
   data-arc span      7734 days (21.17 yr)  
   first obs. used      1998-09-26  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55946  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:58:18  

Additional Information
 Earth MOID = 1.76608 au 
 Jupiter MOID = 1.99193 au 
 T_jup = 3.203 
[ 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 13.8   n/a MPO359203  
diameter diameter 6.143 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.155   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66143 (1998 SE161)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SE161 = 2000 AG195 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-18 01:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin