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 ]  
74112 (1998 QE40)
Classification: Main-belt Asteroid          SPK-ID: 2074112
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736838066070463 6.0547e-08  
a 2.475341427890574 1.0524e-08 au
q 2.045414706042418 1.4582e-07 au
i 3.124108264272725 5.7659e-06 deg
node 198.5098349035225 6.3825e-05 deg
peri 224.0897227970339 6.5949e-05 deg
M 46.46934263469662 1.2835e-05 deg
tp 2458416.882055869470
(2018-Oct-25.38205587)
5.0811e-05 TDB
period 1422.496126244643
3.89
9.0717e-06
2.484e-08
d
yr
n .2530762603553738 1.6139e-09 deg/d
Q 2.905268149738731 1.2352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1508  
   data-arc span      7576 days (20.74 yr)  
   first obs. used      1998-08-03  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48912  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:45:14  

Additional Information
 Earth MOID = 1.05943 au 
 Jupiter MOID = 2.41631 au 
 T_jup = 3.459 
[ 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 14.9   n/a MPO337816  
diameter diameter 3.056 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.189   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74112 (1998 QE40)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QE40 = 2000 CO52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 07:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin