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30935 Davasobel (1994 AK1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2030935
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174264017013518 1.4198e-08  
a 1.903709444113177 5.7508e-09 au
q 1.680163694206086 2.6498e-08 au
i 27.81566580188947 1.7095e-06 deg
node 294.1334609877047 1.1921e-06 deg
peri 230.7536127319565 8.9159e-06 deg
M 117.7650241782488 9.7574e-06 deg
tp 2459082.656420609148
(2020-Aug-21.15642061)
2.5374e-05 TDB
period 959.3993579086355
2.63
4.3473e-06
1.19e-08
d
yr
n .3752347727069076 1.7003e-09 deg/d
Q 2.127255194020268 6.4261e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1332  
   data-arc span      10035 days (27.47 yr)  
   first obs. used      1994-01-08  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42005  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:47:34  

Additional Information
 Earth MOID = .746474 au 
 Jupiter MOID = 3.03277 au 
 T_jup = 3.796 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457138.5 (2015-Apr-26.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177545041517467 1.4199e-08  
q 1.679487297695311 2.6535e-08 au
tp 2457164.131813961536
(2015-May-21.63181396)
2.3021e-05 TDB
node 294.159232879802 1.1922e-06 deg
peri 230.6846395991976 8.888e-06 deg
i 27.81449925632866 1.7095e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1332  
   data-arc span      10035 days (27.47 yr)  
   first obs. used      1994-01-08  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42005  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:47:34  

Additional Information
 Jupiter MOID = 3.03277 au 
 T_jup = 3.796 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.016012347009231E-16 -3.699795150889133E-16 -1.759051350774282E-13 4.030341789922575E-15 -5.73457346035089E-14 -1.483910301388077E-14
q -3.699795150889133E-16 7.041066032710428E-16 3.449800065451451E-13 -7.441699636259246E-15 1.133259306092379E-13 2.885077577026037E-14
tp -1.759051350774282E-13 3.449800065451451E-13 5.299845491546308E-10 2.138980434398488E-12 2.027903984242452E-10 2.613808079465496E-11
node 4.030341789922575E-15 -7.441699636259246E-15 2.138980434398488E-12 1.421303543008735E-12 4.33623951337879E-13 -3.374921528464396E-13
peri -5.73457346035089E-14 1.133259306092379E-13 2.027903984242452E-10 4.33623951337879E-13 7.899730942708475E-11 1.010612406730729E-11
i -1.483910301388077E-14 2.885077577026037E-14 2.613808079465496E-11 -3.374921528464396E-13 1.010612406730729E-11 2.922236420461084E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.63   n/a MPO614063  
diameter diameter 2.408 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.9769 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Benishek, V.; Warner, B.D. (2015) Minor Planet Bull. 42, 195.]
geometric albedo albedo 0.581   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30935 Davasobel           Discovered 1994 Jan. 8 by C. S. Shoemaker and D. H. Levy at Palomar.
Dava Sobel (b. 1947) is an author whose books have inspired a serious interest in the history of science among her millions of readers. Her most famous books---Longitude, Galileo's Daughter and The Planets---provide new insights into the most important historical issues in the evolution of scientific thought.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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