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3291 Dunlap (1982 VX3)
Classification: Main-belt Asteroid          SPK-ID: 2003291
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026988554988479 1.9931e-08  
a 3.147424259720202 1.3982e-08 au
q 2.824187390477628 6.4334e-08 au
i 2.007114240707975 8.8802e-07 deg
node 151.2356622439407 2.1034e-05 deg
peri 161.9116428760362 2.3342e-05 deg
M 22.91942795795039 1.1471e-05 deg
tp 2459070.652787156792
(2020-Aug-09.15278716)
6.5024e-05 TDB
period 2039.535921634537
5.58
1.359e-05
3.721e-08
d
yr
n .1765107425573004 1.1761e-09 deg/d
Q 3.470661128962775 1.5417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2793  
   data-arc span      24576 days (67.29 yr)  
   first obs. used      1953-10-01  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:56:55  

Additional Information
 Earth MOID = 1.80824 au 
 Jupiter MOID = 1.77386 au 
 T_jup = 3.200 
[ 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 12.71   n/a E2021B10  
diameter diameter 22.496 km 2.454 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.051   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3291 Dunlap (1982 VX3)          Discovered 1982-Nov-14 by Kosai, H. and Hurukawa, K. at Kiso Station
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 VX3 = 1974 HE2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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