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19166 (1991 EY1)
Classification: Main-belt Asteroid          SPK-ID: 2019166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1392304997489304 2.6937e-08  
a 2.310672236155686 7.4166e-09 au
q 1.988956185959751 6.0905e-08 au
i 5.053141794461847 4.4453e-06 deg
node 318.1230078187554 3.0576e-05 deg
peri 245.9501796905201 3.4437e-05 deg
M 131.9264655455496 1.5973e-05 deg
tp 2458730.351155952389
(2019-Sep-03.85115595)
5.6629e-05 TDB
period 1282.938818661087
3.51
6.1768e-06
1.691e-08
d
yr
n .2806057426617637 1.351e-09 deg/d
Q 2.632388286351621 8.4492e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1915  
   data-arc span      10901 days (29.85 yr)  
   first obs. used      1991-02-22  
   last obs. used      2020-12-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46333  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:41:46  

Additional Information
 Earth MOID = .991234 au 
 Jupiter MOID = 2.35168 au 
 T_jup = 3.567 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.75   n/a E2021B10  
diameter diameter 2.908 km 0.444 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.302   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19166 (1991 EY1)          Discovered 1991-Mar-07 by Debehogne, H. at La Silla
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 EY1 = 1991 DJ2 = 1998 BA25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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