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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 
[ 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1972-Jan-06 23:58 00:01 Jupiter 1.9159273737888 1.9159265978822 1.91592814969454 1.71988480169875 1.44007399154993 2441323.498298465 1.40118019447382 96.3795717976224 61.4127007382711 14.9277188309717 1132162.07624719 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22
1982-May-08 06:50 < 00:01 Jupiter 1.68793915772177 1.68793859559365 1.68793971985037 1.96045836588993 1.68516457657155 2445097.784548167 0.914433229868297 121.922954249792 59.5470121362561 79.7120641352901 1915542.11381064 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22
1992-Nov-18 00:24 < 00:01 Jupiter 1.80371579818565 1.80371531314775 1.80371628322346 2.92736263768469 2.76229156665425 2448944.516460747 0.550560522525298 67.1986068085748 20.8834001399582 87.8215752923207 2454071.4954675 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22
2066-Nov-09 01:41 00:01 Jupiter 1.87520398283945 1.87520331673981 1.87520464893855 1.5384145814297 1.20968054528917 2475963.570025623 1.41230571921687 161.221440999181 73.2791134943604 20.2804573584523 1375476.97915541 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22
2077-Mar-12 14:34 00:02 Jupiter 1.69066642963528 1.6906659177686 1.69066694150176 1.92489087246236 1.64414308566958 2479740.106965797 1.54535602926299 145.074604322277 75.6662689205632 -86.0735170327332 1258684.47209696 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22
2087-Sep-19 15:38 00:02 Jupiter 1.85044689420894 1.85044586023665 1.85044792818364 3.01873666271173 2.86309136578753 2483583.151414555 1.78223085383107 142.812904818538 23.1016785890128 76.4841256630664 2233893.35149597 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22
2161-Sep-11 20:15 00:04 Jupiter 1.8363946045237 1.83639337443579 1.83639583460858 1.37895491002204 0.989460676740497 2510603.343562585 4.15535181076591 807.350751759173 96.7144793122575 16.4475706683185 982069.255509776 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22
2172-Jan-15 05:01 00:04 Jupiter 1.69681959822827 1.69681904309244 1.69682015336401 1.89245659798767 1.60717986932548 2514380.708772423 3.95570547659104 286.269808294547 93.7231955057463 -63.3935936960952 948069.986204094 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22
2182-Jul-20 12:22 00:04 Jupiter 1.89869286979063 1.89869077536885 1.89869496422773 3.13268249412348 2.98688519173665 2518220.015198050 4.06866124048032 305.26287866513 22.6523305540981 75.3681748154103 2359435.89517427 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:22:45 2020-May-20 06:22

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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