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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109122330212863 2.1883e-08  
a 2.867586431172556 9.3062e-09 au
q 2.549536016709666 6.5659e-08 au
i 11.53075913719936 6.0913e-07 deg
node 40.62772964130843 1.4969e-06 deg
peri 98.56662451841852 6.2112e-06 deg
M 310.6422410512241 6.7299e-06 deg
tp 2459443.679036750711
(2021-Aug-17.17903675)
3.3486e-05 TDB
period 1773.671558328062
4.86
8.6342e-06
2.364e-08
d
yr
n .2029688068851661 9.8804e-10 deg/d
Q 3.185636845635446 1.0338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3307  
   data-arc span      41014 days (112.29 yr)  
   first obs. used      1908-11-28  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39813  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:18:18  

Additional Information
 Earth MOID = 1.59326 au 
 Jupiter MOID = 1.91193 au 
 T_jup = 3.260 
[ 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 10.96   n/a E2021B10  
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. 2020-October); 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 ]
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