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442191 (2011 EG74)
Classification: Main-belt Asteroid          SPK-ID: 2442191
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05655375229309044 5.0813e-08  
a 2.182366059650445 2.3694e-08 au
q 2.058945070100126 1.0797e-07 au
i 5.93912406480523 9.1235e-06 deg
node 337.6548300365289 5.7543e-05 deg
peri 231.0437765086148 0.00011479 deg
M 289.0922278734779 0.00010047 deg
tp 2459232.442943710251
(2021-Jan-17.94294371)
0.00033049 TDB
period 1177.578384308856
3.22
1.9177e-05
5.25e-08
d
yr
n .3057121333042225 4.9786e-09 deg/d
Q 2.305787049200764 2.5034e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      7412 days (20.29 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 11:45:06  

Additional Information
 Earth MOID = 1.06064 au 
 Jupiter MOID = 2.66862 au 
 T_jup = 3.671 
[ 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 17.8   n/a MPO456095  

442191 (2011 EG74)          Discovered 2011-Mar-11 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 EG74 = 2014 DA9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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