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4090 Risehvezd (1986 RH1)
Classification: Main-belt Asteroid          SPK-ID: 2004090
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090189804490415 4.8341e-08  
a 2.357628952482468 1.1742e-08 AU
q 1.86483975255744 1.1601e-07 AU
i 1.328371237718891 5.117e-06 deg
node 266.5790900934524 0.00024209 deg
peri 4.453298757177389 0.00024257 deg
M 286.1167704196034 2.0023e-05 deg
tp 2457071.865717754283
(2015-Feb-18.36571775)
7.4702e-05 JED
period 1322.244018654301
3.62
9.8782e-06
2.705e-08
d
yr
n .2722644193666959 2.034e-09 deg/d
Q 2.850418152407495 1.4197e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1415  
   data-arc span      30327 days (83.03 yr)  
   first obs. used      1931-03-20  
   last obs. used      2014-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54885  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:45:24  

Additional Information
 Earth MOID = .848278 AU 
 T_jup = 3.523 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO259367  

4090 Rísehvezd           Discovered 1986 Sept. 2 by A. Mrkos at Klet.
Named for Ríse hvezd (the Realm of Stars), Czech popular journal for astronomy. Originally published by the Czech Astronomical Society in Prague, the journal has described new findings from astronomy, astrophysics and space exploration and provided information about Czech and Slovak amateur and professional astronomy for more than three-quarters of a century. Name suggested by J. Ticha, M. Tichy and Z. Moravec.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

[ show close-approach data ]
Alternate Designations
 1986 RH1 = 1931 FF = 1971 KB = 1982 KX = 1988 AR3 = 1989 GU 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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