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 ]  
46512 (1951 QD)
Classification: Main-belt Asteroid          SPK-ID: 2046512
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 .2284470694095464 4.098e-08  
a 2.800741683549829 1.5614e-08 au
q 2.160920453769712 1.1408e-07 au
i 8.673433935239622 4.3952e-06 deg
node 125.5663739333362 2.948e-05 deg
peri 295.88433639108 3.0917e-05 deg
M 141.0327807566526 1.14e-05 deg
tp 2457929.804213922402
(2017-Jun-25.30421392)
5.1339e-05 TDB
period 1712.016750237307
4.69
1.4317e-05
3.92e-08
d
yr
n .2102783164651277 1.7584e-09 deg/d
Q 3.440562913329947 1.9181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      975  
   data-arc span      24725 days (67.69 yr)  
   first obs. used      1951-08-31  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46812  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:33:45  

Additional Information
 Earth MOID = 1.19036 au 
 Jupiter MOID = 1.95006 au 
 T_jup = 3.270 
[ 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 14.4   n/a MPO385113  
diameter diameter 8.239 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46512 (1951 QD)          Discovered 1951-Aug-31 by Cunningham, L. E. at Mount Wilson
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1951 QD = 1998 XF90 
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