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4191 Assesse (1980 KH)
Classification: Main-belt Asteroid          SPK-ID: 2004191
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1460965794253609 3.1012e-08  
a 2.630204849973605 1.0489e-08 au
q 2.245940918204467 8.0717e-08 au
i 12.07092993412154 3.9806e-06 deg
node 231.7256306415213 2.0467e-05 deg
peri 39.64063584657568 2.7484e-05 deg
M 106.6891430042168 1.6884e-05 deg
tp 2458538.756793943628
(2019-Feb-24.25679394)
7.3559e-05 TDB
period 1558.055013842636
4.27
9.3198e-06
2.552e-08
d
yr
n .2310573097878815 1.3821e-09 deg/d
Q 3.014468781742743 1.2021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2277  
   data-arc span      14475 days (39.63 yr)  
   first obs. used      1980-05-22  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42056  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:06:42  

Additional Information
 Earth MOID = 1.24415 au 
 Jupiter MOID = 2.08456 au 
 T_jup = 3.354 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO435738  
diameter diameter 7.431 km 0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.6489 h n/a LCDB (Rev. 2019-August); 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:
[Angeli, C.A.; Guimaraes, T.A.; Lazzaro, D.; Duffard, R.; et al. (2001) Astron. J. 121, 2245-2252.]
[Alvarez, E.M. (2010) Minor Planet Bull. 37, 142-143.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.292   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4191 Assesse (1980 KH)          Discovered 1980-May-22 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1980 KH = 1984 DG1 = 1988 BD5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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