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 ]  
17698 Racheldavis (1997 EW42)
Classification: Main-belt Asteroid          SPK-ID: 2017698
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05513554228073322 4.0815e-08  
a 3.114665308773187 2.1408e-08 au
q 2.94293654795099 1.2855e-07 au
i 11.20191988051504 4.6289e-06 deg
node 160.5241064951763 2.2367e-05 deg
peri 172.8987995142778 4.6488e-05 deg
M 189.2561865563165 4.2334e-05 deg
tp 2459552.765349002779
(2021-Dec-04.26534900)
0.00023939 TDB
period 2007.777141243663
5.50
2.07e-05
5.667e-08
d
yr
n .1793027685219126 1.8486e-09 deg/d
Q 3.286394069595384 2.2588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1413  
   data-arc span      8094 days (22.16 yr)  
   first obs. used      1997-03-10  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:32:30  

Additional Information
 Earth MOID = 1.93247 au 
 Jupiter MOID = 2.00211 au 
 T_jup = 3.186 
[ 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 13.3   n/a MPO474001  
diameter diameter 11.716 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17698 Racheldavis           Discovered 1997 Mar. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Rachel Michelle Davis (b. 1993) is a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors, for her materials science project. She attends the Smithtown High School East, St. James, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Alternate Designations
 1997 EW42 = 1998 HU124 = 1999 RZ46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-21 02:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin