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26844 (1991 VA4)
Classification: Main-belt Asteroid          SPK-ID: 2026844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027368438292726 3.3563e-08  
a 2.331192198671777 6.9396e-09 au
q 1.858573649953638 7.9418e-08 au
i 3.133714641580184 3.7239e-06 deg
node 104.9129114812826 6.7913e-05 deg
peri 342.5688770422759 6.8541e-05 deg
M 233.5257831330032 9.7144e-06 deg
tp 2459057.235792301299
(2020-Jul-26.73579230)
3.5957e-05 TDB
period 1300.066442802178
3.56
5.8051e-06
1.589e-08
d
yr
n .276908924150101 1.2365e-09 deg/d
Q 2.803810747389915 8.3465e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1347  
   data-arc span      10219 days (27.98 yr)  
   first obs. used      1991-11-09  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49976  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:55:54  

Additional Information
 Earth MOID = .875242 au 
 Jupiter MOID = 2.40976 au 
 T_jup = 3.541 
[ 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 14.7   n/a MPO439287  
diameter diameter 2.957 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26844 (1991 VA4)          Discovered 1991-Nov-12 by Otomo, S. at Kiyosato
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 VA4 = 1998 SA67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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