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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1394615069081077 2.6345e-08  
a 2.310104050133688 7.2413e-09 au
q 1.987933458187521 5.9734e-08 au
i 5.053142161357501 4.434e-06 deg
node 318.122682850586 3.0103e-05 deg
peri 245.878732673941 3.4e-05 deg
M 187.0188507282961 1.5967e-05 deg
tp 2460012.728835471522
(2023-Mar-09.22883547)
5.7443e-05 TDB
period 1282.465642665474
3.51
6.0301e-06
1.651e-08
d
yr
n .2807092744034662 1.3199e-09 deg/d
Q 2.632274642079855 8.2512e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1939  
   data-arc span      10901 days (29.85 yr)  
   first obs. used      1991-02-22  
   last obs. used      2020-12-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46072  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:07:30  

Additional Information
 Earth MOID = .991739 au 
 Jupiter MOID = 2.35074 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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