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4172 Rochefort (1982 FC3)
Classification: Main-belt Asteroid          SPK-ID: 2004172
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09315465408776928 1.543e-08  
a 2.274322633015395 5.6422e-09 au
q 2.062458894852861 3.4661e-08 au
i 2.18115194828948 3.5913e-07 deg
node 332.2944064852463 3.9679e-06 deg
peri 211.3302340809441 7.4514e-06 deg
M 104.8004093213723 6.6793e-06 deg
tp 2458835.798948968875
(2019-Dec-18.29894897)
2.337e-05 TDB
period 1252.784976903998
3.43
4.6619e-06
1.276e-08
d
yr
n .2873597677469493 1.0693e-09 deg/d
Q 2.486186371177929 6.1678e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2386  
   data-arc span      25422 days (69.60 yr)  
   first obs. used      1951-02-04  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51292  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:01:51  

Additional Information
 Earth MOID = 1.06431 au 
 Jupiter MOID = 2.47397 au 
 T_jup = 3.603 
[ 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 14.46   n/a E2021B10  
diameter diameter 3.353 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.68 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D (2012) Minor Planet Bull. 39, 69-80.]
geometric albedo albedo 0.395   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4172 Rochefort (1982 FC3)          Discovered 1982-Mar-20 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1982 FC3 = 1970 WO1 = 1984 YD6 = 1989 GD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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