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27769 (1991 UA3)
Classification: Main-belt Asteroid          SPK-ID: 2027769
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .199909539897959 5.2427e-08  
a 3.006794554152261 1.5253e-08 au
q 2.405707638263994 1.571e-07 au
i 8.963148286806607 4.9688e-06 deg
node 50.92482790706269 2.6826e-05 deg
peri 327.1899226335697 2.821e-05 deg
M 180.1568482140742 8.5858e-06 deg
tp 2459951.861262023607
(2023-Jan-07.36126202)
4.8084e-05 TDB
period 1904.381962434562
5.21
1.4491e-05
3.967e-08
d
yr
n .189037707298895 1.4385e-09 deg/d
Q 3.607881470040528 1.8303e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1463  
   data-arc span      10420 days (28.53 yr)  
   first obs. used      1991-10-18  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:22:53  

Additional Information
 Earth MOID = 1.4142 au 
 Jupiter MOID = 1.86588 au 
 T_jup = 3.202 
[ 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 13.8   n/a MPO474128  
diameter diameter 5.964 km 1.920 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27769 (1991 UA3)          Discovered 1991-Oct-31 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 UA3 = 2000 JN53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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