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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2352875193558032 4.8284e-08  
a 3.138857381538628 2.5838e-08 AU
q 2.400323414624753 1.5105e-07 AU
i 10.86963179761337 6.9702e-06 deg
node 163.22137022 2.6872e-05 deg
peri 235.0601492477078 3.0854e-05 deg
M 112.6891883840094 1.5011e-05 deg
tp 2456364.677998046196
(2013-Mar-13.17799805)
8.1627e-05 JED
period 2031.214564465261
5.56
2.508e-05
6.867e-08
d
yr
n .1772338611085008 2.1884e-09 deg/d
Q 3.877391348452504 3.1917e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      991  
   data-arc span      8935 days (24.46 yr)  
   first obs. used      1990-10-09  
   last obs. used      2015-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53949  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:26:11  

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
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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