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27770 (1991 VF1)
Classification: Main-belt Asteroid          SPK-ID: 2027770
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205140460546498 3.9699e-08  
a 2.25214384986926 6.2804e-09 au
q 1.98072888222442 8.8698e-08 au
i 3.624678900054136 4.265e-06 deg
node 6.147442559335368 5.2962e-05 deg
peri 352.9596880998773 5.4975e-05 deg
M 81.33486073676737 1.4273e-05 deg
tp 2458321.588229040246
(2018-Jul-22.08822904)
4.88e-05 TDB
period 1234.504327369212
3.38
5.1638e-06
1.414e-08
d
yr
n .2916150166659824 1.2198e-09 deg/d
Q 2.5235588175141 7.0372e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1629  
   data-arc span      10009 days (27.40 yr)  
   first obs. used      1991-11-04  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51422  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:05:25  

Additional Information
 Earth MOID = .976224 au 
 Jupiter MOID = 2.89985 au 
 T_jup = 3.614 
[ 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 14.6   n/a MPO452559  
diameter diameter 3.696 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.225   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27770 (1991 VF1)          Discovered 1991-Nov-04 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 VF1 = 1998 XO17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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