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 ]  
109139 (2001 QJ55)
Classification: Main-belt Asteroid          SPK-ID: 2109139
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07752585670895548 6.0437e-08  
a 2.56267181243044 1.713e-08 au
q 2.363998484707878 1.4742e-07 au
i 7.329081938032822 4.8588e-06 deg
node 127.9271376995122 3.9884e-05 deg
peri 248.5980325556479 5.0505e-05 deg
M 170.9908280470204 3.3644e-05 deg
tp 2458288.781541356565
(2018-Jun-19.28154136)
0.00013734 TDB
period 1498.435021562557
4.10
1.5024e-05
4.113e-08
d
yr
n .2402506580663035 2.4089e-09 deg/d
Q 2.761345140153001 1.8458e-08 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      8747 days (23.95 yr)  
   first obs. used      1996-05-12  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5753  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:01:13  

Additional Information
 Earth MOID = 1.37577 au 
 Jupiter MOID = 2.59783 au 
 T_jup = 3.418 
[ 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 15.8   n/a MPO469114  

109139 (2001 QJ55)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QJ55 = 1999 AA15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-09 00:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin