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27771 (1991 VY2)
Classification: Main-belt Asteroid          SPK-ID: 2027771
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 .1053367547741873 3.8801e-08  
a 2.285832173700689 8.149e-09 au
q 2.045050030564632 9.0452e-08 au
i 6.643909415468287 3.6735e-06 deg
node 268.2905376960341 3.5802e-05 deg
peri 60.49813783116446 3.9855e-05 deg
M 57.37915203296559 1.7123e-05 deg
tp 2458399.305287167209
(2018-Oct-07.80528717)
6.0019e-05 TDB
period 1262.306849327299
3.46
6.7502e-06
1.848e-08
d
yr
n .2851921465781865 1.5251e-09 deg/d
Q 2.526614316836747 9.0073e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1505  
   data-arc span      11762 days (32.20 yr)  
   first obs. used      1987-09-15  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51017  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:07:56  

Additional Information
 Earth MOID = 1.04182 au 
 Jupiter MOID = 2.74198 au 
 T_jup = 3.586 
[ 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 14.3   n/a MPO452559  
diameter diameter 4.018 km 0.412 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.275   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27771 (1991 VY2)          Discovered 1991-Nov-05 by Sugie, A. at Dynic
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 VY2 = 1998 XP32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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