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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 
[ 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 1.91592736964917 1.91592659393578 1.9159281453617 1.71988474672771 1.44007392523454 2441323.498310091 1.39733520994768 96.0501217615116 61.048899268353 14.4137207953074 1132625.47840085 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21
1982-May-08 06:50 < 00:01 Jupiter 1.68793914992327 1.68793859070929 1.68793970913773 1.96045840726183 1.68516462332631 2445097.784546332 0.912904914684998 121.781038979756 58.7882747934767 79.866497225148 1933908.27418492 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21
1992-Nov-18 00:24 < 00:01 Jupiter 1.80371580125738 1.80371531674802 1.80371628576676 2.92736266284266 2.76229159360515 2448944.516459520 0.550136386381432 66.4530176975805 20.8153068120851 87.6019773305742 2454478.96256744 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21
2066-Nov-09 01:41 00:01 Jupiter 1.87520395762432 1.87520329902372 1.87520461622439 1.53841449883023 1.20968043522208 2475963.570006696 1.40362339659286 158.522495152721 72.5321629149822 20.4419479347481 1404595.89854585 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21
2077-Mar-12 14:34 00:02 Jupiter 1.69066642024027 1.69066591199756 1.69066692848279 1.92489093288339 1.64414315471457 2479740.106934222 1.53635225566143 144.664478235117 74.8144549096551 -86.1536948649996 1263230.53822693 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21
2087-Sep-19 15:38 00:02 Jupiter 1.85044692627076 1.85044589898238 1.85044795356156 3.01873677208929 2.86309148388123 2483583.151374952 1.77188958833846 141.730627768305 22.8522675091728 76.451917601444 2239076.87840739 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21
2161-Sep-11 20:15 00:04 Jupiter 1.83639455896407 1.83639334029163 1.83639577763369 1.37895462187297 0.98946026359856 2510603.343487142 4.13564280040993 800.860022857453 95.3461753379703 16.498874465321 1001202.27321131 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21
2172-Jan-15 05:01 00:04 Jupiter 1.69681959519614 1.6968190424265 1.69682014796579 1.89245679115519 1.60718009622548 2514380.708694526 3.93692984966569 284.980791846727 93.0629519093516 -63.424824417847 950669.004152496 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21
2182-Jul-20 12:22 00:04 Jupiter 1.89869293456246 1.89869085232646 1.89869501681368 3.13268271700572 2.98688543059343 2518220.015117015 4.04895356989058 303.668035958825 22.3920443228504 75.3757526525256 2367182.35824262 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 01:21:36 2020-Nov-13 01:21

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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