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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 | 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 .0968170377414511 3.9409e-08  
a 2.19634865705731 7.2029e-09 au
q 1.983704686233607 8.8187e-08 au
i 3.559074077628777 4.2957e-06 deg
node 282.0274508189542 7.7375e-05 deg
peri 159.7506392529643 8.2314e-05 deg
M 86.6493481943926 2.6936e-05 deg
tp 2458914.337217141314
(2020-Mar-05.83721714)
8.8924e-05 TDB
period 1188.913753834719
3.26
5.8485e-06
1.601e-08
d
yr
n .3027974054794615 1.4895e-09 deg/d
Q 2.408992627881013 7.9002e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1049  
   data-arc span      9655 days (26.43 yr)  
   first obs. used      1993-11-09  
   last obs. used      2020-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54442  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:57:00  

Additional Information
 Earth MOID = .999694 au 
 Jupiter MOID = 2.75489 au 
 T_jup = 3.660 
[ 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 15.54   n/a E2021B10  

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

[ show close-approach data ]
Alternate Designations
 1998 GF1 = 1993 VY6 = 1996 TK57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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