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

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2363487518478896 4.3524e-08  
a 3.138132699352512 1.628e-08 au
q 2.396438952727498 1.3653e-07 au
i 10.87047456455385 4.7176e-06 deg
node 163.2131926328163 2.4476e-05 deg
peri 234.7620313277443 2.6064e-05 deg
M 36.85229686150858 8.5693e-06 deg
tp 2458392.641665349265
(2018-Oct-01.14166535)
4.7977e-05 TDB
period 2030.511171541704
5.56
1.5801e-05
4.326e-08
d
yr
n .1772952570000701 1.3797e-09 deg/d
Q 3.879826445977528 2.0128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1589  
   data-arc span      10651 days (29.16 yr)  
   first obs. used      1990-10-09  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50076  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:41:17  

Additional Information
 Earth MOID = 1.42145 au 
 Jupiter MOID = 1.66745 au 
 T_jup = 3.140 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO459052  
diameter diameter 14.529 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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