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 ]  
187971 (2001 QB85)
Classification: Main-belt Asteroid          SPK-ID: 2187971
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841695101619688 3.6613e-08  
a 2.327843253680809 1.2746e-08 au
q 1.899125501916571 8.4112e-08 au
i 4.701598286866869 4.2718e-06 deg
node 101.4464405252136 7.7046e-05 deg
peri 160.0277334275573 8.1147e-05 deg
M 204.9060913565244 2.9097e-05 deg
tp 2459759.383473601236
(2022-Jun-28.88347360)
0.00010754 TDB
period 1297.26597424888
3.55
1.0655e-05
2.917e-08
d
yr
n .2775067003576047 2.2793e-09 deg/d
Q 2.756561005445048 1.5094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      8686 days (23.78 yr)  
   first obs. used      1997-04-08  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60131  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:34  

Additional Information
 Earth MOID = .88264 au 
 Jupiter MOID = 2.31432 au 
 T_jup = 3.546 
[ 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 16.7   n/a MPO494037  

187971 (2001 QB85)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 2001 QB85 = 2004 FC9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-22 19:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin