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 ]  
146421 (2001 QP220)
Classification: Main-belt Asteroid          SPK-ID: 2146421
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1088002761400498 5.2394e-08  
a 2.564219154908422 3.0337e-08 au
q 2.28523140277078 1.4538e-07 au
i 14.41380344996946 7.899e-06 deg
node 297.8858785343385 2.0067e-05 deg
peri 309.1240770869995 7.0212e-05 deg
M 177.152517351881 7.8429e-05 deg
tp 2457862.466688626812
(2017-Apr-18.96668863)
0.00031667 TDB
period 1499.792360085967
4.11
2.6616e-05
7.287e-08
d
yr
n .2400332269857442 4.2598e-09 deg/d
Q 2.843206907046063 3.3638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      450  
   data-arc span      6868 days (18.80 yr)  
   first obs. used      2000-04-06  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56313  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:12:03  

Additional Information
 Earth MOID = 1.29634 au 
 Jupiter MOID = 2.34153 au 
 T_jup = 3.381 
[ 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 15.6   n/a MPO359749  

146421 (2001 QP220)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Alternate Designations
 2001 QP220 = 2004 BN95 
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 19:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin