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 ]  
538 Friederike (A904 OA)
Classification: Main-belt Asteroid          SPK-ID: 2000538
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 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1696520256776128 3.9114e-08  
a 3.159117902646376 1.3046e-08 au
q 2.623167151108007 1.2682e-07 au
i 6.520304851247505 4.1654e-06 deg
node 141.1585505509194 3.6813e-05 deg
peri 227.5960633955733 3.851e-05 deg
M 90.93933249128222 1.1707e-05 deg
tp 2458082.420461495800
(2017-Nov-24.92046150)
6.5824e-05 TDB
period 2050.912721174761
5.62
1.2704e-05
3.478e-08
d
yr
n .1755316041892764 1.0873e-09 deg/d
Q 3.695068654184746 1.5259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2694  
   data-arc span      41934 days (114.81 yr)  
   first obs. used      1904-07-20  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45062  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:09:12  

Additional Information
 Earth MOID = 1.62662 au 
 Jupiter MOID = 1.77946 au 
 T_jup = 3.173 
[ 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 9.5   n/a MPO259336  
diameter diameter 70.640 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 46.728 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2013) Minor Planet Bull. 40, 85-87.]
[Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Santana-Ros, T.; et al. (2015) Planet. Space Sci. 118, 256-266.]
geometric albedo albedo 0.065   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

538 Friederike (A904 OA)          Discovered 1904-Jul-18 by Gotz, P. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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 2019-Oct-16 23:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin