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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07616803908136355 3.9332e-08  
a 3.397496998183452 2.2794e-08 au
q 3.138716314047 1.3356e-07 au
i 10.99736420182322 5.1336e-06 deg
node 321.1253792568309 2.4016e-05 deg
peri 152.687424216438 4.463e-05 deg
M 72.91034100374637 3.5777e-05 deg
tp 2458137.241199768487
(2018-Jan-18.74119977)
0.00022802 TDB
period 2287.373310663508
6.26
2.302e-05
6.303e-08
d
yr
n .1573857657260035 1.5839e-09 deg/d
Q 3.656277682319904 2.4531e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2191  
   data-arc span      41827 days (114.52 yr)  
   first obs. used      1905-02-09  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42133  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:29:38  

Additional Information
 Earth MOID = 2.15972 au 
 Jupiter MOID = 1.42239 au 
 T_jup = 3.113 
[ 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 10.8   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-January); 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

[ show close-approach data ]
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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