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186847 (2004 GN21)
Classification: Main-belt Asteroid          SPK-ID: 2186847
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .078767088237911 1.3372e-07  
a 2.582253513866602 2.2259e-08 au
q 2.378856923487215 3.5634e-07 au
i 14.3837595222852 4.693e-06 deg
node 76.65559072957731 2.3707e-05 deg
peri 93.77330365174519 4.6865e-05 deg
M 43.04229622216045 3.3912e-05 deg
tp 2459019.286865002809
(2020-Jun-18.78686500)
0.00014333 TDB
period 1515.642387252598
4.15
1.9597e-05
5.365e-08
d
yr
n .2375230483310587 3.0712e-09 deg/d
Q 2.785650104245988 2.4012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7281 days (19.93 yr)  
   first obs. used      2000-05-28  
   last obs. used      2020-05-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53368  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:52:57  

Additional Information
 Earth MOID = 1.43353 au 
 Jupiter MOID = 2.30576 au 
 T_jup = 3.376 
[ 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 16.28   n/a E2021B55  

186847 (2004 GN21)          Discovered 2004-Apr-11 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2004 GN21 = 2002 XE93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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