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 ]  
48977 (1998 QO40)
Classification: Main-belt Asteroid          SPK-ID: 2048977
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07906157929670576 3.8235e-08  
a 2.284252054010558 7.7342e-09 au
q 2.10365547910874 8.6574e-08 au
i 6.933280479491143 4.5065e-06 deg
node 200.6948504390625 2.8148e-05 deg
peri 35.2590457747643 3.7637e-05 deg
M 91.38415453874443 2.4289e-05 deg
tp 2458280.402073828485
(2018-Jun-10.90207383)
8.5129e-05 TDB
period 1260.998189493438
3.45
6.4044e-06
1.753e-08
d
yr
n .28548811806353 1.4499e-09 deg/d
Q 2.464848628912377 8.3457e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      7745 days (21.20 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53486  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:39:27  

Additional Information
 Earth MOID = 1.09701 au 
 Jupiter MOID = 2.52073 au 
 T_jup = 3.589 
[ 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 14.8   n/a MPO250661  
diameter diameter 2.342 km 0.648 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.424   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48977 (1998 QO40)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QO40 = 2000 AX178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin