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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2440242423865981 5.8537e-08  
a 2.215920112605105 1.0608e-08 AU
q 1.675181885937419 1.2796e-07 AU
i 6.031832923563381 7.0408e-06 deg
node 238.0510946379358 4.889e-05 deg
peri 89.51884532425387 5.1293e-05 deg
M 55.77892288676441 1.7076e-05 deg
tp 2456813.820255108097
(2014-Jun-05.32025511)
5.683e-05 JED
period 1204.840550569896
3.30
8.6515e-06
2.369e-08
d
yr
n .2987947241896184 2.1455e-09 deg/d
Q 2.756658339272791 1.3196e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1030  
   data-arc span      12193 days (33.38 yr)  
   first obs. used      1981-10-03  
   last obs. used      2015-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52784  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:20:20  

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 14.3 mag n/a MPO319209  

9927 Tyutchev (1981 TW1)          Discovered 1981-Oct-03 by Karachkina, L. G. at Nauchnyj
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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