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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2365032599643917 4.1344e-08  
a 3.137134634376345 1.557e-08 au
q 2.39519206639914 1.2836e-07 au
i 10.87298643058277 4.6465e-06 deg
node 163.2066319026378 2.1352e-05 deg
peri 234.6814775599407 2.3102e-05 deg
M 107.8560842538914 8.6926e-06 deg
tp 2458392.448574019143
(2018-Sep-30.94857402)
4.7696e-05 TDB
period 2029.542560045339
5.56
1.511e-05
4.137e-08
d
yr
n .1773798722368048 1.3206e-09 deg/d
Q 3.879077202353551 1.9253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1786  
   data-arc span      10791 days (29.54 yr)  
   first obs. used      1990-10-09  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:22:20  

Additional Information
 Earth MOID = 1.42078 au 
 Jupiter MOID = 1.67062 au 
 T_jup = 3.140 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456553.5 (2013-Sep-18.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .234471660692556 4.1319e-08  
q 2.405808414674172 1.282e-07 au
tp 2456365.537539794214
(2013-Mar-14.03753979)
4.7108e-05 TDB
node 163.2829804421197 2.1395e-05 deg
peri 235.3819511102169 2.3184e-05 deg
i 10.85259349981643 4.639e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1786  
   data-arc span      10791 days (29.54 yr)  
   first obs. used      1990-10-09  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:22:20  

Additional Information
 Jupiter MOID = 1.67062 au 
 T_jup = 3.140 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.707223122951659E-15 -5.273973204814146E-15 -2.550097704538108E-13 5.03737591976358E-15 -1.075396156822753E-13 -2.443954350024593E-15
q -5.273973204814146E-15 1.643399338439717E-14 7.180346157039652E-13 -1.589145272336124E-14 3.231679057566618E-13 7.378576186559153E-15
tp -2.550097704538108E-13 7.180346157039652E-13 2.219183666103436E-9 -1.134704931192461E-11 4.34450798668379E-10 -1.932904651946839E-12
node 5.03737591976358E-15 -1.589145272336124E-14 -1.134704931192461E-11 4.577575412336359E-10 -4.514891074700352E-10 8.862533455739857E-12
peri -1.075396156822753E-13 3.231679057566618E-13 4.34450798668379E-10 -4.514891074700352E-10 5.375037264115722E-10 -8.984234017701251E-12
i -2.443954350024593E-15 7.378576186559153E-15 -1.932904651946839E-12 8.862533455739857E-12 -8.984234017701251E-12 2.151994281549204E-11

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

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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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