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 ]  
109548 (2001 QE257)
Classification: Main-belt Asteroid          SPK-ID: 2109548
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2167370696442786 6.8666e-08  
a 2.972038319565174 2.333e-08 au
q 2.327887443312112 2.1134e-07 au
i 4.988379821416939 4.9849e-06 deg
node 85.33427389612145 7.7077e-05 deg
peri 270.8528812793229 7.8106e-05 deg
M 234.5855466298889 1.7663e-05 deg
tp 2459652.466262354648
(2022-Mar-13.96626235)
9.7936e-05 TDB
period 1871.457779710811
5.12
2.2036e-05
6.033e-08
d
yr
n .1923634099058486 2.265e-09 deg/d
Q 3.616189195818235 2.8387e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      10401 days (28.48 yr)  
   first obs. used      1991-11-04  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57921  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:05:53  

Additional Information
 Earth MOID = 1.33025 au 
 Jupiter MOID = 1.85311 au 
 T_jup = 3.221 
[ 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 15.5   n/a MPO432617  

109548 (2001 QE257)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QE257 = 2000 KG 
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-05 19:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin