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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
100662 (1997 WM28)
Classification: Main-belt Asteroid          SPK-ID: 2100662
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 .1836946070728246 4.5666e-08  
a 2.789227918393818 1.8529e-08 au
q 2.276861791887913 1.2794e-07 au
i 2.403805258281169 6.2224e-06 deg
node 150.5583008785117 0.00013448 deg
peri 317.5841033668377 0.00013592 deg
M 263.9321216566499 1.7826e-05 deg
tp 2459454.546289433116
(2021-Aug-28.04628943)
8.5567e-05 TDB
period 1701.470533279831
4.66
1.6954e-05
4.642e-08
d
yr
n .2115816835840512 2.1083e-09 deg/d
Q 3.301594044899723 2.1932e-08 au
  Orbit Determination Parameters
   # obs. used (total)      450  
   data-arc span      7465 days (20.44 yr)  
   first obs. used      1997-11-29  
   last obs. used      2018-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61319  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:20:28  

Additional Information
 Earth MOID = 1.29431 au 
 Jupiter MOID = 1.83295 au 
 T_jup = 3.304 
[ 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 MPO449611  

100662 (1997 WM28)          Discovered 1997-Nov-29 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 WM28 = 2001 SD351 = 2003 BD81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-24 23:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin