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 ]  
100391 (1995 WO17)
Classification: Main-belt Asteroid          SPK-ID: 2100391
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2008095252977497 4.4429e-08  
a 2.376969913096125 9.0811e-09 au
q 1.899651713200259 1.0507e-07 au
i 1.730836253809614 4.6268e-06 deg
node 315.9406471770681 0.00017695 deg
peri 17.6933127216429 0.00017737 deg
M 300.434882938764 1.4089e-05 deg
tp 2459221.974358607302
(2021-Jan-07.47435861)
5.306e-05 TDB
period 1338.548013204798
3.66
7.6708e-06
2.1e-08
d
yr
n .268948141156383 1.5412e-09 deg/d
Q 2.854288112991991 1.0905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      420  
   data-arc span      8538 days (23.38 yr)  
   first obs. used      1995-10-24  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57021  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:05:28  

Additional Information
 Earth MOID = .889562 au 
 Jupiter MOID = 2.51396 au 
 T_jup = 3.513 
[ 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 16.5   n/a MPO432532  
rotation period rot_per 4.59 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

100391 (1995 WO17)          Discovered 1995-Nov-17 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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 2020-Apr-03 18:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin