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JPL Small-Body Database Browser
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20426 Fridlund (1998 VW44)
Classification: Main-belt Asteroid          SPK-ID: 2020426
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222575076401775 4.3379e-08  
a 3.144350453348042 2.0947e-08 au
q 2.759930003774448 1.3822e-07 au
i 19.22464424161718 4.8104e-06 deg
node 93.7376011109514 1.2983e-05 deg
peri 150.5587012138405 2.3721e-05 deg
M 347.048605813532 1.7625e-05 deg
tp 2458673.767076769462
(2019-Jul-09.26707677)
9.9558e-05 TDB
period 2036.548904099057
5.58
2.035e-05
5.572e-08
d
yr
n .1767696318391427 1.7664e-09 deg/d
Q 3.528770902921636 2.3508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1369  
   data-arc span      10383 days (28.43 yr)  
   first obs. used      1991-04-15  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45842  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:29:53  

Additional Information
 Earth MOID = 1.75902 au 
 Jupiter MOID = 1.61305 au 
 T_jup = 3.112 
[ 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 13.2   n/a MPO492967  

20426 Fridlund           Discovered 1998 Nov. 13 by C.-I. Lagerkvist at the European Southern Observatory.
Malcolm Fridlund (b. 1952) worked at ESA on projects such as Darwin and Corot.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-03-31Last Updated: 2018-04-05

[ show close-approach data ]
Alternate Designations
 1998 VW44 = 1991 GD2 = 1999 VP223 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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