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2291 Kevo (1941 FS)
Classification: Main-belt Asteroid          SPK-ID: 2002291
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06492550439419911 3.4145e-08  
a 3.042249246120774 1.5499e-08 au
q 2.84472967932351 1.0518e-07 au
i 24.49788883657417 4.4375e-06 deg
node 169.4823155550087 8.2692e-06 deg
peri 296.0944561895402 3.3539e-05 deg
M 87.36190495613857 3.1731e-05 deg
tp 2458730.161846605500
(2019-Sep-03.66184661)
0.00017119 TDB
period 1938.1644128185
5.31
1.4811e-05
4.055e-08
d
yr
n .1857427561970783 1.4194e-09 deg/d
Q 3.239768812918037 1.6505e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2784  
   data-arc span      40814 days (111.74 yr)  
   first obs. used      1909-04-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3932  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:01:46  

Additional Information
 Earth MOID = 1.9188 au 
 Jupiter MOID = 1.85533 au 
 T_jup = 3.099 
[ 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 10.90   n/a E2021B10  
diameter diameter 41.429 km 0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.63 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.049   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2291 Kevo (1941 FS)          Discovered 1941-Mar-19 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1941 FS = 1938 RC = 1967 EO = 1970 TD = 1975 RT1 = 1978 GT2 = 1980 PE = A909 HC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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