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 ]  
541 Deborah (A904 PF)
Classification: Main-belt Asteroid          SPK-ID: 2000541
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04984307154728242 3.4079e-08  
a 2.815778799804466 9.798e-09 au
q 2.675431735624491 9.5545e-08 au
i 6.002483128945477 3.8583e-06 deg
node 267.6306410195604 3.7119e-05 deg
peri 358.4746601242435 5.4766e-05 deg
M 155.6218971143735 4.1082e-05 deg
tp 2457854.456014399296
(2017-Apr-10.95601440)
0.00019614 TDB
period 1725.822906649602
4.73
9.008e-06
2.466e-08
d
yr
n .2085961419407047 1.0888e-09 deg/d
Q 2.956125863984441 1.0286e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2995  
   data-arc span      42125 days (115.33 yr)  
   first obs. used      1904-08-04  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45201  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:44:49  

Additional Information
 Earth MOID = 1.65907 au 
 Jupiter MOID = 2.09785 au 
 T_jup = 3.309 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.1   n/a MPO298957  
diameter diameter 60.147 km 0.714 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 29.368 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Alkema, M.S. (2014) Minor Planet Bull. 41, 40.]
geometric albedo albedo 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

541 Deborah (A904 PF)          Discovered 1904-Aug-04 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A904 PF = 1957 WU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-25 08:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin