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4279 De Gasparis (1982 WB)
Classification: Main-belt Asteroid          SPK-ID: 2004279
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2085787537866057 3.2569e-08  
a 2.364212306008451 8.154e-09 au
q 1.871087849534251 7.8179e-08 au
i 4.280502497015908 4.1261e-06 deg
node 265.6249595871142 5.4288e-05 deg
peri 161.4474056748569 5.5399e-05 deg
M 3.545692822765581 1.126e-05 deg
tp 2458587.422439293800
(2019-Apr-13.92243929)
4.1511e-05 TDB
period 1327.786159027715
3.64
6.8692e-06
1.881e-08
d
yr
n .2711279956884125 1.4027e-09 deg/d
Q 2.857336762482651 9.8548e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1498  
   data-arc span      23293 days (63.77 yr)  
   first obs. used      1955-04-16  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48921  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:32:13  

Additional Information
 Earth MOID = .88542 au 
 Jupiter MOID = 2.44822 au 
 T_jup = 3.516 
[ 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 14.5   n/a MPO358671  
diameter diameter 7.644 km 2.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.055   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

4279 De Gasparis (1982 WB)          Discovered 1982-Nov-19 by Oss. San Vittore at Bologna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 WB = 1978 RW16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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