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 ]  
16765 Agnesi (1996 UA)
Classification: Main-belt Asteroid          SPK-ID: 2016765
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1104200753763366 4.361e-08  
a 2.624935655350371 1.2551e-08 au
q 2.33509006242855 1.1584e-07 au
i 12.2648373561758 5.4312e-06 deg
node 17.75471961394311 1.8545e-05 deg
peri 314.8835262622659 2.7421e-05 deg
M 143.2956140470943 2.0831e-05 deg
tp 2457982.189221795737
(2017-Aug-16.68922180)
8.9487e-05 TDB
period 1553.375388589212
4.25
1.1141e-05
3.05e-08
d
yr
n .2317533821151595 1.6622e-09 deg/d
Q 2.914781248272193 1.3937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1480  
   data-arc span      8455 days (23.15 yr)  
   first obs. used      1996-09-14  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52746  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 23:35:46  

Additional Information
 Earth MOID = 1.34286 au 
 Jupiter MOID = 2.5104 au 
 T_jup = 3.362 
[ 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 14.0   n/a MPO431691  
diameter diameter 4.132 km 0.247 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.546 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.285   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16765 Agnesi           Discovered 1996 Oct. 16 by P. G. Comba at Prescott.
Maria Gaetana Agnesi (1718-1799) was the first woman in the western world who can properly be called a mathematician. She wrote a treatise on algebra that was widely translated, and in 1750 she was appointed to a professorship at the University of Bologna.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

[ 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 2020-Jan-27 12:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin