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 ]  
100971 (1998 QE22)
Classification: Main-belt Asteroid          SPK-ID: 2100971
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2471148093183395 3.7866e-08  
a 2.560435892851904 1.0507e-08 au
q 1.927714265417974 1.0031e-07 au
i 2.642043779006686 5.014e-06 deg
node 244.2448420853027 6.6916e-05 deg
peri 47.01439567257873 6.772e-05 deg
M 137.8751185272888 1.2154e-05 deg
tp 2458427.370603089268
(2018-Nov-04.87060309)
4.8116e-05 TDB
period 1496.47438270036
4.10
9.2116e-06
2.522e-08
d
yr
n .2405654277558609 1.4808e-09 deg/d
Q 3.193157520285835 1.3104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      7826 days (21.43 yr)  
   first obs. used      1998-06-30  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51209  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:36:26  

Additional Information
 Earth MOID = .912677 au 
 Jupiter MOID = 2.00795 au 
 T_jup = 3.390 
[ 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 15.3   n/a MPO453463  
diameter diameter 2.197 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.366   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100971 (1998 QE22)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QE22 = 2002 LY31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-21 02:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin