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9927 Tyutchev (1981 TW1)
Classification: Main-belt Asteroid          SPK-ID: 2009927
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2440242461173318 6.1909e-08  
a 2.215920112341293 1.443e-08 AU
q 1.675181877470976 1.3807e-07 AU
i 6.031832104903275 7.2219e-06 deg
node 238.0510424807969 6.3081e-05 deg
peri 89.51889857031539 6.495e-05 deg
M 55.77892175871182 2.0507e-05 deg
tp 2456813.820258916778
(2014-Jun-05.32025892)
6.7697e-05 JED
period 1204.840550354736
3.30
1.1769e-05
3.222e-08
d
yr
n .298794724242977 2.9186e-09 deg/d
Q 2.756658347211611 1.7951e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      12021 days (32.91 yr)  
   first obs. used      1981-10-03  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55511  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:55:53  

Additional Information
 Earth MOID = .67835 AU 
 T_jup = 3.607 
[ 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 14.2 mag n/a MPO266011  

9927 Tyutchev (1981 TW1)          Discovered 1981-Oct-03 by Karachkina, L. G. at Nauchnyj (095)
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 TW1 = 1981 UA1 = 1981 UG10 = 1991 XP 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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