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JPL Small-Body Database Browser
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19101 (1981 EV6)
Classification: Main-belt Asteroid          SPK-ID: 2019101
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062342030471191 3.876e-08  
a 3.080542397821181 2.1786e-08 au
q 2.753283431235786 1.2778e-07 au
i 7.605771201945456 4.1291e-06 deg
node 281.6949737111684 2.9688e-05 deg
peri 81.37956253638814 3.5971e-05 deg
M 271.8743208464865 2.2585e-05 deg
tp 2459483.936223551249
(2021-Sep-26.43622355)
0.00012703 TDB
period 1974.873182824269
5.41
2.095e-05
5.736e-08
d
yr
n .1822901860893992 1.9337e-09 deg/d
Q 3.407801364406575 2.41e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1177  
   data-arc span      13968 days (38.24 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53105  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:40:11  

Additional Information
 Earth MOID = 1.76385 au 
 Jupiter MOID = 2.07773 au 
 T_jup = 3.206 
[ 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 13.9   n/a MPO259479  
diameter diameter 4.982 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.258   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19101 (1981 EV6)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EV6 = 1995 YW22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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