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 ]  
52775 (1998 QQ18)
Classification: Main-belt Asteroid          SPK-ID: 2052775
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2184622590446451 3.9169e-08  
a 2.276295371465597 7.4237e-09 au
q 1.779010742362354 8.8464e-08 au
i 1.854282155447777 4.6266e-06 deg
node 179.7360509255198 0.00013286 deg
peri 165.4470202453549 0.00013332 deg
M 112.7960172361833 1.3242e-05 deg
tp 2458607.463743846766
(2019-May-03.96374385)
4.494e-05 TDB
period 1254.415321410614
3.43
6.1365e-06
1.68e-08
d
yr
n .2869862906291459 1.4039e-09 deg/d
Q 2.773580000568841 9.0455e-09 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      8370 days (22.92 yr)  
   first obs. used      1997-03-02  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56261  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:35:21  

Additional Information
 Earth MOID = .771772 au 
 Jupiter MOID = 2.64248 au 
 T_jup = 3.576 
[ 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 15.9   n/a MPO502509  

52775 (1998 QQ18)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-29 03:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin