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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2358239423427275 4.8347e-08  
a 3.13674505589806 2.5382e-08 au
q 2.39702547069212 1.5114e-07 au
i 10.87189055055723 6.8733e-06 deg
node 163.2257656903585 2.6336e-05 deg
peri 234.9059349010671 3.0224e-05 deg
M 183.8125545716928 1.5285e-05 deg
tp 2458393.592536508521
(2018-Oct-02.09253651)
9.2888e-05 JED
period 2029.164520059655
5.56
2.4629e-05
6.743e-08
d
yr
n .1774129186870547 2.1534e-09 deg/d
Q 3.876464641104 3.1368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      9043 days (24.76 yr)  
   first obs. used      1990-10-09  
   last obs. used      2015-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54125  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:11:24  

Additional Information
 Earth MOID = 1.42135 au 
 Jupiter MOID = 1.67106 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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