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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2085363531600846 2.9178e-08  
a 2.363547910285515 7.7258e-09 au
q 1.870662248555435 6.9278e-08 au
i 4.280519024715501 3.7076e-06 deg
node 265.6232838966848 5.3534e-05 deg
peri 161.345654315905 5.4559e-05 deg
M 166.3729437186298 1.1441e-05 deg
tp 2458587.126170668429
(2019-Apr-13.62617067)
4.0946e-05 TDB
period 1327.226492624952
3.63
6.5075e-06
1.782e-08
d
yr
n .2712423252552786 1.3299e-09 deg/d
Q 2.856433572015596 9.3369e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1749  
   data-arc span      23782 days (65.11 yr)  
   first obs. used      1955-04-16  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48185  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:09:08  

Additional Information
 Earth MOID = .884672 au 
 Jupiter MOID = 2.45013 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 14.53   n/a E2020-QM5  
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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