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27738 (1990 TT4)
Classification: Main-belt Asteroid          SPK-ID: 2027738
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2359576182629777 4.7091e-08  
a 3.136528872321867 2.5067e-08 au
q 2.396440989995736 1.4781e-07 au
i 10.87177670577089 6.4542e-06 deg
node 163.2237183618909 2.603e-05 deg
peri 234.8795158853149 2.9483e-05 deg
M 219.3461565090738 1.5205e-05 deg
tp 2458393.223010522541
(2018-Oct-01.72301052)
9.1521e-05 JED
period 2028.954749512588
5.55
2.4323e-05
6.659e-08
d
yr
n .1774312611390087 2.1271e-09 deg/d
Q 3.876616754647998 3.0982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1047  
   data-arc span      9324 days (25.53 yr)  
   first obs. used      1990-10-09  
   last obs. used      2016-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54437  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:50:04  

Additional Information
 Earth MOID = 1.42074 au 
 Jupiter MOID = 1.66988 au 
 T_jup = 3.141 
[ 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 13.1 mag n/a MPO279804  

27738 (1990 TT4)          Discovered 1990-Oct-09 by McNaught, R. H. at Siding Spring
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 TT4 = 1990 TY15 = 1998 DR34 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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