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21442 (1998 GF1)
Classification: Main-belt Asteroid          SPK-ID: 2021442
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09685941158968046 3.6754e-08  
a 2.196032373825501 6.3939e-09 au
q 1.983325970264874 8.1265e-08 au
i 3.559117066274257 3.708e-06 deg
node 282.0241265767646 7.5454e-05 deg
peri 159.6655149986847 7.9094e-05 deg
M 146.0976295987413 2.4153e-05 deg
tp 2458914.111214286674
(2020-Mar-05.61121429)
7.9131e-05 TDB
period 1188.656950381442
3.25
5.1913e-06
1.421e-08
d
yr
n .302862823360832 1.3227e-09 deg/d
Q 2.408738777386128 7.0132e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1192  
   data-arc span      10073 days (27.58 yr)  
   first obs. used      1993-11-09  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53246  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:08:04  

Additional Information
 Earth MOID = .999617 au 
 Jupiter MOID = 2.75542 au 
 T_jup = 3.660 
[ 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 15.57   n/a MPO614063  

21442 (1998 GF1)          Discovered 1998-Apr-04 by Zoltowski, F. B. at Woomera
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 GF1 = 1993 VY6 = 1996 TK57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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