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
JPL Small-Body Database Browser
Search: [ help ]  
641 Agnes (A907 RH)
Classification: Main-belt Asteroid          SPK-ID: 2000641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281366990877357 3.1134e-08  
a 2.219659146421771 5.5143e-09 au
q 1.935239350299384 6.9224e-08 au
i 1.709671632272143 3.8978e-06 deg
node 40.9756896925923 0.00011131 deg
peri 18.3018996138039 0.00011245 deg
M 332.6839828877327 1.8175e-05 deg
tp 2459092.152166497024
(2020-Aug-30.65216650)
6.1151e-05 TDB
period 1207.891318976778
3.31
4.5012e-06
1.232e-08
d
yr
n .2980400590219998 1.1106e-09 deg/d
Q 2.504078942544158 6.2209e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2461  
   data-arc span      40992 days (112.23 yr)  
   first obs. used      1907-09-11  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:33:04  

Additional Information
 Earth MOID = .947674 au 
 Jupiter MOID = 2.78301 au 
 T_jup = 3.639 
[ 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 12.4   n/a MPO435701  
diameter diameter 9.446 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 178.0 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Franco, L.; Martinez, L. (2014) Minor Planet Bull. 41, 71-72.]
geometric albedo albedo 0.217   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

641 Agnes (A907 RH)          Discovered 1907-Sep-08 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A907 RH = 1952 FD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-12 01:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin