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6972 Helvetius (1992 GY3)
Classification: Main-belt Asteroid          SPK-ID: 2006972
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .128965981136655 4.2771e-08  
a 2.56823576758116 9.5266e-09 au
q 2.237020722024806 1.1079e-07 au
i 6.350459063960712 3.9986e-06 deg
node 213.7610672264636 3.7961e-05 deg
peri 284.3008852051605 4.0529e-05 deg
M .2382937011951277 1.5453e-05 deg
tp 2458999.504913523710
(2020-May-30.00491352)
6.4529e-05 TDB
period 1503.317669193963
4.12
8.3646e-06
2.29e-08
d
yr
n .2394703444103214 1.3324e-09 deg/d
Q 2.899450813137515 1.0755e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2254  
   data-arc span      30037 days (82.24 yr)  
   first obs. used      1938-02-21  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:31:38  

Additional Information
 Earth MOID = 1.2603 au 
 Jupiter MOID = 2.16122 au 
 T_jup = 3.411 
[ 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 13.0   n/a MPO358699  
diameter diameter 6.878 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.35 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:
[Moravec, P.; Cochren, J.; Gerhardt, M.; Harris, A.; et al. (2012) Minor Planet Bull. 39, 213-216.]
geometric albedo albedo 0.492   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6972 Helvetius (1992 GY3)          Discovered 1992-Apr-04 by Elst, E. W. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1992 GY3 = 1938 DR1 = 1975 EZ5 = 1994 UR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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