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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05612932978436141 3.3852e-08  
a 3.118616775070327 1.5702e-08 au
q 2.943570905631363 1.122e-07 au
i 11.20536591280498 3.4519e-06 deg
node 160.4931114803774 1.8333e-05 deg
peri 171.6265829170077 3.6769e-05 deg
M 333.2753327112319 3.2003e-05 deg
tp 2459545.831438682956
(2021-Nov-27.33143868)
0.0001789 TDB
period 2011.599147146661
5.51
1.5192e-05
4.159e-08
d
yr
n .1789620961565029 1.3516e-09 deg/d
Q 3.293662644509292 1.6583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1938  
   data-arc span      8918 days (24.42 yr)  
   first obs. used      1997-03-10  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:01:23  

Additional Information
 Earth MOID = 1.93316 au 
 Jupiter MOID = 1.99537 au 
 T_jup = 3.185 
[ 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 13.32   n/a MPO636330  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1939-Nov-05 12:17 00:02 Jupiter 1.98710152005907 1.98710120150737 1.98710183861088 4.79237677089601 4.70259018978136 2429573.011630095 1.64181221624841 127.800859596622 14.5099668901889 88.4452426941231 5141045.69238569 T 33 CATAB v2.0g-lin.ifort 2021-Aug-24 22:01:30 2021-Aug-24 22:01

Alternate Designations
 1997 EW42 = 1998 HU124 = 1999 RZ46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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