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3141 Buchar (1984 RH)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07541303000087907 3.8972e-08  
a 3.401062550056317 2.1854e-08 au
q 3.144578117934054 1.312e-07 au
i 10.99764299208459 5.0147e-06 deg
node 321.0924585334799 2.3859e-05 deg
peri 153.3761155812766 4.386e-05 deg
M 135.205078143062 3.5115e-05 deg
tp 2458140.079283372241
(2018-Jan-21.57928337)
0.00022405 TDB
period 2290.975030229572
6.27
2.2082e-05
6.046e-08
d
yr
n .1571383342244134 1.5146e-09 deg/d
Q 3.65754698217858 2.3502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2262  
   data-arc span      42082 days (115.21 yr)  
   first obs. used      1905-02-09  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4178  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:49:35  

Additional Information
 Earth MOID = 2.16499 au 
 Jupiter MOID = 1.41782 au 
 T_jup = 3.113 
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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 10.8   n/a MPO347546  
diameter diameter 36.05 km 2.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 11.41 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:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0858   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6

3141 Buchar (1984 RH)          Discovered 1984-Sep-02 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1984 RH = 1952 PE = 1952 RQ = 1953 UF = 1953 VK2 = 1977 NM = 1977 OE = 1979 YW9 = A905 CE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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