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 ]  
135099 (2001 QB81)
Classification: Main-belt Asteroid          SPK-ID: 2135099
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .157390479356214 4.4279e-08  
a 3.159548416261668 2.1129e-08 au
q 2.662265576477078 1.3851e-07 au
i 17.18173573288505 6.194e-06 deg
node 343.4613270273766 1.3743e-05 deg
peri 65.48641404503446 2.4854e-05 deg
M 125.517756880061 1.8352e-05 deg
tp 2458485.281700594911
(2019-Jan-01.78170059)
0.00010396 TDB
period 2051.331972350866
5.62
2.0577e-05
5.634e-08
d
yr
n .1754957290444965 1.7604e-09 deg/d
Q 3.656831256046259 2.4455e-08 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      10354 days (28.35 yr)  
   first obs. used      1992-02-05  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50985  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:11:30  

Additional Information
 Earth MOID = 1.72099 au 
 Jupiter MOID = 2.00777 au 
 T_jup = 3.117 
[ 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 14.46   n/a E2021B55  
diameter diameter 8.354 km 0.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135099 (2001 QB81)          Discovered 2001-Aug-17 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ 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 2021-May-14 14:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin