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6317 Dreyfus (1990 UP3)
Classification: Main-belt Asteroid          SPK-ID: 2006317
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05900898297450709 6.4099e-09  
a 2.241632510649565 5.3683e-09 au
q 2.109356055993544 1.3326e-08 au
i 5.835443390408231 4.489e-07 deg
node 94.04534276013887 2.0585e-06 deg
peri 94.5421809120834 1.5962e-05 deg
M 206.6786332427822 1.5681e-05 deg
tp 2459722.589829478246
(2022-May-23.08982948)
5.3957e-05 TDB
period 1225.871791958315
3.36
4.4036e-06
1.206e-08
d
yr
n .2936685568275493 1.0549e-09 deg/d
Q 2.373908965305587 5.6851e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2528  
   data-arc span      12109 days (33.15 yr)  
   first obs. used      1988-01-11  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:33:41  

Additional Information
 Earth MOID = 1.11796 au 
 Jupiter MOID = 2.59387 au 
 T_jup = 3.625 
[ 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 13.94   n/a E2021B10  
diameter diameter 5.640 km 0.218 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.25 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Gaftonyuk, N.M.; Krugly, Yu.N. (2004) Astronomical School Report 5, No. 1-2, 122-125 (in Russian).]
geometric albedo albedo 0.153   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6317 Dreyfus (1990 UP3)          Discovered 1990-Oct-16 by Elst, E. W. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1990 UP3 = 1988 AQ5 = 1992 FQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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