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 ]  
109404 (2001 QD181)
Classification: Main-belt Asteroid          SPK-ID: 2109404
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 .1890303703919271 4.9945e-08  
a 2.57753105240088 1.5108e-08 au
q 2.090299402868848 1.2875e-07 au
i 4.270229193598097 5.6138e-06 deg
node 351.5292767578999 6.3541e-05 deg
peri 314.9920840569512 6.4864e-05 deg
M 130.8474182014608 1.7224e-05 deg
tp 2458051.127465896597
(2017-Oct-24.62746590)
6.914e-05 TDB
period 1511.486546663992
4.14
1.3289e-05
3.638e-08
d
yr
n .2381761192612382 2.094e-09 deg/d
Q 3.064762701932912 1.7963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      7797 days (21.35 yr)  
   first obs. used      1997-10-04  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63789  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:30:53  

Additional Information
 Earth MOID = 1.07739 au 
 Jupiter MOID = 2.19984 au 
 T_jup = 3.397 
[ 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 MPO459511  

109404 (2001 QD181)          Discovered 2001-Aug-27 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QD181 = 2000 GU170 
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 17:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin