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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1057878628052831 3.8703e-08  
a 3.083000046028037 2.2233e-08 au
q 2.756856060130142 1.2822e-07 au
i 7.601259521016241 4.0864e-06 deg
node 281.6918873146207 2.9246e-05 deg
peri 80.83450199619919 3.5478e-05 deg
M 308.7836558440794 2.2567e-05 deg
tp 2459481.796804097255
(2021-Sep-24.29680410)
0.00012585 TDB
period 1977.23697667135
5.41
2.1388e-05
5.856e-08
d
yr
n .1820722575227451 1.9695e-09 deg/d
Q 3.409144031925933 2.4584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1224  
   data-arc span      14426 days (39.50 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53191  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:45:47  

Additional Information
 Earth MOID = 1.76559 au 
 Jupiter MOID = 2.07253 au 
 T_jup = 3.205 
[ 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 13.85   n/a E2021B10  
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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