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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109122330577185 2.1881e-08  
a 2.867586431146784 9.3045e-09 au
q 2.549536016582281 6.5654e-08 au
i 11.53075913740128 6.0912e-07 deg
node 40.62772964175031 1.4969e-06 deg
peri 98.56662450864654 6.2112e-06 deg
M 310.6422410682147 6.7294e-06 deg
tp 2459443.679036663723
(2021-Aug-17.17903666)
3.3483e-05 TDB
period 1773.671558304151
4.86
8.6326e-06
2.363e-08
d
yr
n .2029688068879023 9.8786e-10 deg/d
Q 3.185636845711288 1.0336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3311  
   data-arc span      41024 days (112.32 yr)  
   first obs. used      1908-11-28  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3979  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:45:55  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1927-Apr-21 07:09 00:01 Jupiter 1.93340796636907 1.93340775261133 1.93340818012912 3.0668075897464 2.92046442071541 2424991.797760248 1.2615067167195 132.864595979688 3.55179013539137 -82.9677284259493 6881055.06447668 T 46 CATAB v2.0g-lin.ifort 2021-May-03 18:47:07 2021-May-03 18:47
1952-Jan-30 03:05 < 00:01 Jupiter 1.97497503536165 1.97497476214052 1.97497530858278 4.2058452054108 4.10260633433265 2434041.628394776 0.842865899255915 23.944277913752 10.2034814861484 -75.0602734534023 5997892.66699388 T 46 CATAB v2.0g-lin.ifort 2021-May-03 18:47:07 2021-May-03 18:47
2034-May-04 03:36 < 00:01 Jupiter 1.91516256620037 1.91516242606126 1.91516270633959 3.39784932077057 3.26509361058035 2464086.649844314 0.295898266422735 37.6054970433047 3.83989849977737 -84.33108010921 8160325.82364011 T 46 CATAB v2.0g-lin.ifort 2021-May-03 18:47:07 2021-May-03 18:47
2116-Jul-21 16:42 00:02 Jupiter 1.98392404795654 1.98392362377575 1.9839244721388 2.65091230596486 2.48464283698472 2494115.195622181 1.55005914929163 94.236185696366 4.86321781611313 -70.6752963606463 6042288.4700348 T 46 CATAB v2.0g-lin.ifort 2021-May-03 18:47:07 2021-May-03 18:47
2141-May-14 02:09 00:02 Jupiter 1.9065231361158 1.90652293752765 1.90652333470482 3.68180779408483 3.55909491196802 2503177.589303880 1.77154767286788 113.932595015584 5.38273131785339 -89.8394855187277 6087955.20989129 T 46 CATAB v2.0g-lin.ifort 2021-May-03 18:47:07 2021-May-03 18:47

Alternate Designations
 A910 ED = A908 WB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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