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21225 (1995 GQ1)
Classification: Main-belt Asteroid          SPK-ID: 2021225
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155077465345208 2.8378e-08  
a 2.273387139865301 7.0842e-09 au
q 2.010793314338901 6.3656e-08 au
i 4.587568430459965 3.8917e-06 deg
node 60.39377289004764 4.3774e-05 deg
peri 211.950800053832 4.8779e-05 deg
M 112.8414878871871 2.3136e-05 deg
tp 2458808.058589034388
(2019-Nov-20.55858903)
8.0062e-05 TDB
period 1252.012097614873
3.43
5.8522e-06
1.602e-08
d
yr
n .2875371577365848 1.344e-09 deg/d
Q 2.535980965391701 7.9025e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1496  
   data-arc span      17658 days (48.34 yr)  
   first obs. used      1972-10-09  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48554  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:41:50  

Additional Information
 Earth MOID = .994559 au 
 Jupiter MOID = 2.54059 au 
 T_jup = 3.598 
[ 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 15.27   n/a E2021B10  

21225 (1995 GQ1)          Discovered 1995-Apr-01 by Spacewatch at Kitt Peak
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 GQ1 = 1972 TF10 = 1998 FE = 1999 NR63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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