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
JPL Small-Body Database Browser
Search: [ help ]  
100955 (1998 QJ9)
Classification: Main-belt Asteroid          SPK-ID: 2100955
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2276612308562684 4.8403e-08  
a 2.301136802688462 8.5343e-09 au
q 1.777257165819749 1.1206e-07 au
i 5.094531175597896 4.1148e-06 deg
node 257.6055169523145 6.4454e-05 deg
peri 121.1111485990096 6.5683e-05 deg
M 104.6781318780504 1.1751e-05 deg
tp 2458829.763328093497
(2019-Dec-12.26332809)		 4.1533e-05 TDB
period 1275.005576540357
3.49		 7.093e-06
1.942e-08		 d
yr
n .2823517062386788 1.5708e-09 deg/d
Q 2.825016439557175 1.0477e-08 au
   Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      8162 days (22.35 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56199  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:36  

Additional Information
 Earth MOID = .784943 au 
 Jupiter MOID = 2.66226 au 
 T_jup = 3.551 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.86   n/a E2021B55  

100955 (1998 QJ9)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 QJ9 = 2002 VV56 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-03 03:34 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin