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190426 (1999 VW138)
Classification: Main-belt Asteroid          SPK-ID: 2190426
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898858669652431 5.1829e-08  
a 2.165859791832173 1.8537e-08 au
q 1.75459362753496 1.2239e-07 au
i 4.275126530413249 4.2691e-06 deg
node 87.1546705920107 6.6016e-05 deg
peri 197.7811586853763 7.0046e-05 deg
M 334.7925923751411 3.319e-05 deg
tp 2459282.021022595029
(2021-Mar-08.52102259)
0.00010826 TDB
period 1164.243803685256
3.19
1.4947e-05
4.092e-08
d
yr
n .3092135846980408 3.9697e-09 deg/d
Q 2.577125956129386 2.2057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      333  
   data-arc span      7466 days (20.44 yr)  
   first obs. used      1999-11-09  
   last obs. used      2020-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:37  

Additional Information
 Earth MOID = .736828 au 
 Jupiter MOID = 2.57183 au 
 T_jup = 3.666 
[ 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 17.30   n/a E2021B55  

190426 (1999 VW138)          Discovered 1999-Nov-09 by Spacewatch at Kitt Peak
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Alternate Designations
 1999 VW138 = 2005 QR164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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