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 ]  
698 Ernestina (A910 ED)
Classification: Main-belt Asteroid          SPK-ID: 2000698
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109070992694244 4.0047e-08  
a 2.866260553333355 1.0459e-08 au
q 2.548371909612777 1.1538e-07 au
i 11.53309051112081 4.7993e-06 deg
node 40.62706049143782 2.0372e-05 deg
peri 98.84512243372096 2.9426e-05 deg
M 188.5099216043366 2.102e-05 deg
tp 2459444.822621293341
(2021-Aug-18.32262129)
0.00010451 TDB
period 1772.441569268588
4.85
9.7019e-06
2.656e-08
d
yr
n .2031096574588673 1.1118e-09 deg/d
Q 3.184149197053933 1.1619e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2684  
   data-arc span      40514 days (110.92 yr)  
   first obs. used      1908-11-28  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4369  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:56:07  

Additional Information
 Earth MOID = 1.59256 au 
 Jupiter MOID = 1.9147 au 
 T_jup = 3.261 
[ 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 10.9   n/a MPO302062  
diameter diameter 27.037 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.0363 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Ivanova, V.G.; Apostolovska, G.; Borisov, G.B.; Bilkina, B.I. (2002) Proc. ACM 2002, ESA SP 500, 505-508.]
[Pray, D.P.; Galad, A.; Gajdos, S.; Vilagi, J.; et al. (2006) Minor Planet Bull. 33, 92-95.]
[Polishook, D.; Brosch, N. (2009) Icarus 199, 319-332.]
[Apostolovska, G.; Kostov, A.; Bilkina, B.; Ivanova, V.; Donchev, Z. (2011) Bulg. J. Phys. 38, 325-328.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.095   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

698 Ernestina (A910 ED)          Discovered 1910-Mar-05 by Helffrich, J. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A910 ED = A908 WB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin