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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .235287521409574 4.8387e-08  
a 3.138857380202666 2.6323e-08 AU
q 2.400323407156632 1.5143e-07 AU
i 10.86962950812538 7.2017e-06 deg
node 163.2213809911034 2.8853e-05 deg
peri 235.0601386578168 3.3265e-05 deg
M 112.6891888031372 1.5556e-05 deg
tp 2456364.677996087295
(2013-Mar-13.17799609)
8.5189e-05 JED
period 2031.214563168472
5.56
2.5551e-05
6.995e-08
d
yr
n .1772338612216523 2.2295e-09 deg/d
Q 3.877391353248699 3.2517e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      926  
   data-arc span      8872 days (24.29 yr)  
   first obs. used      1990-10-09  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54335  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:16:22  

Additional Information
 Earth MOID = 1.42589 AU 
 T_jup = 3.140 
[ 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 (413)
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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