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85974 (1999 GF21)
Classification: Main-belt Asteroid          SPK-ID: 2085974
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2257188242756213 2.7071e-08  
a 2.526410479378336 9.2072e-09 au
q 1.95615207633545 6.6609e-08 au
i 9.647448543365044 1.0252e-05 deg
node 195.5228322224656 1.6576e-05 deg
peri 89.30157202635593 3.8887e-05 deg
M 136.5130832928947 3.2996e-05 deg
tp 2458840.306290135071
(2019-Dec-22.80629014)
0.0001346 TDB
period 1466.743924622762
4.02
8.018e-06
2.195e-08
d
yr
n .2454416166016095 1.3417e-09 deg/d
Q 3.096668882421223 1.1285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1537  
   data-arc span      7946 days (21.75 yr)  
   first obs. used      1999-04-12  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45606  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:16:07  

Additional Information
 Earth MOID = .968879 au 
 Jupiter MOID = 2.15173 au 
 T_jup = 3.398 
[ 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 14.82   n/a E2021B10  

85974 (1999 GF21)          Discovered 1999-Apr-15 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 GF21 = 2000 SZ153 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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