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79121 (1990 EG1)
Classification: Main-belt Asteroid          SPK-ID: 2079121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2196017393071285 3.3803e-08  
a 2.34235001582739 1.0444e-08 au
q 1.827965878285615 7.8198e-08 au
i 5.357910787458823 4.6293e-06 deg
node 298.6358736924104 5.3491e-05 deg
peri 157.3056184148903 5.5215e-05 deg
M 209.8593105611038 1.4564e-05 deg
tp 2459546.599802895428
(2021-Nov-28.09980290)
5.4835e-05 TDB
period 1309.411391256226
3.58
8.7578e-06
2.398e-08
d
yr
n .2749326929671983 1.8388e-09 deg/d
Q 2.856734153369165 1.2738e-08 au
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      10717 days (29.34 yr)  
   first obs. used      1990-02-24  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54258  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 12:26:06  

Additional Information
 Earth MOID = .846124 au 
 Jupiter MOID = 2.32519 au 
 T_jup = 3.525 
[ 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 15.7   n/a MPO272999  

79121 (1990 EG1)          Discovered 1990-Mar-02 by Elst, E. W. at La Silla
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1990 EG1 = 2003 UB226 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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