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8271 Imai (1989 NY)
Classification: Main-belt Asteroid          SPK-ID: 2008271
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .210411023661833 6.2705e-08  
a 2.407907770589983 1.8159e-08 AU
q 1.901257431696863 1.5048e-07 AU
i 10.42240157485976 7.045e-06 deg
node 140.4710395105714 3.3108e-05 deg
peri 202.4617556236435 3.69e-05 deg
M 255.5248238299583 2.1205e-05 deg
tp 2457396.567138424017
(2016-Jan-09.06713842)
8.3247e-05 JED
period 1364.766014852935
3.74
1.5438e-05
4.227e-08
d
yr
n .2637814805483657 2.9839e-09 deg/d
Q 2.914558109483104 2.198e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1043  
   data-arc span      22523 days (61.66 yr)  
   first obs. used      1952-10-21  
   last obs. used      2014-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51077  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:25:03  

Additional Information
 Earth MOID = .897211 AU 
 T_jup = 3.469 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO259400  

8271 Imai           Discovered 1989 July 2 by E. F. Helin at Palomar.
Yasushi Imai (b. 1949) was the president of a planetarium manufacturing company from 1998 to 2009. His tireless and distinguished efforts encouraged wide-ranging product development in this field.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121029/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1989 NY = 1952 UB = 1978 PA5 = 1978 SV = 1993 SU3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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