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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2365032630522929 4.1133e-08  
a 3.137134633098838 1.547e-08 au
q 2.395192055736605 1.2755e-07 au
i 10.87298642411637 4.6462e-06 deg
node 163.2066320496626 2.0828e-05 deg
peri 234.6814782631847 2.2591e-05 deg
M 107.8560839787946 8.685e-06 deg
tp 2458392.448575941451
(2018-Sep-30.94857594)
4.7628e-05 TDB
period 2029.542558805631
5.56
1.5012e-05
4.11e-08
d
yr
n .177379872345154 1.3121e-09 deg/d
Q 3.879077210461071 1.9129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1806  
   data-arc span      10837 days (29.67 yr)  
   first obs. used      1990-10-09  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48979  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:21:32  

Additional Information
 Earth MOID = 1.42078 au 
 Jupiter MOID = 1.67062 au 
 T_jup = 3.140 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456666.5 (2014-Jan-09.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2347407242577594 4.1039e-08  
q 2.405119691524698 1.2736e-07 au
tp 2456365.434191096594
(2013-Mar-13.93419110)
4.6905e-05 TDB
node 163.2496074005579 2.0858e-05 deg
peri 235.3653680782292 2.266e-05 deg
i 10.85643293653485 4.6398e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1806  
   data-arc span      10837 days (29.67 yr)  
   first obs. used      1990-10-09  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48979  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:21:32  

Additional Information
 Jupiter MOID = 1.67062 au 
 T_jup = 3.140 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.684199299139977E-15 -5.204292882367918E-15 -2.734735657956228E-13 3.742435418894445E-15 -1.113009467072111E-13 -2.526125199624414E-15
q -5.204292882367918E-15 1.622004194655016E-14 7.896589485749457E-13 -1.316924884289364E-14 3.388452245745965E-13 7.638016824048799E-15
tp -2.734735657956228E-13 7.896589485749457E-13 2.200118128186271E-9 -9.313214785419343E-12 4.276636693401959E-10 -1.811817496091532E-12
node 3.742435418894445E-15 -1.316924884289364E-14 -9.313214785419343E-12 4.350548167488504E-10 -4.287401684021977E-10 8.814530340801958E-12
peri -1.113009467072111E-13 3.388452245745965E-13 4.276636693401959E-10 -4.287401684021977E-10 5.134678000020601E-10 -8.889703648401418E-12
i -2.526125199624414E-15 7.638016824048799E-15 -1.811817496091532E-12 8.814530340801958E-12 -8.889703648401418E-12 2.152818334729729E-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

[ 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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