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 ]  
48445 (1990 QX7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2048445
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660093300033519 4.9984e-08  
a 3.209260608267897 1.9576e-08 au
q 2.676493404883194 1.6588e-07 au
i 1.774467439747396 5.4189e-06 deg
node 324.8726087660852 0.00013747 deg
peri 50.56654221980724 0.0001381 deg
M 323.0390342149892 1.2249e-05 deg
tp 2458816.098986530106
(2019-Nov-28.59898653)
7.1503e-05 TDB
period 2099.935256083444
5.75
1.9214e-05
5.261e-08
d
yr
n .1714338568092001 1.5686e-09 deg/d
Q 3.7420278116526 2.2826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      14623 days (40.04 yr)  
   first obs. used      1979-11-16  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50417  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:12:04  

Additional Information
 Earth MOID = 1.67731 au 
 Jupiter MOID = 1.73035 au 
 T_jup = 3.170 
[ 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 14.0   n/a MPO333240  
diameter diameter 7.864 km 0.761 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48445 (1990 QX7)          Discovered 1990-Aug-16 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QX7 = 1979 WS1 = 1993 FQ84 = 1996 SS8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-29 11:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin