Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
136553 (1445 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2136553
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516480508857371 4.8771e-08  
a 3.166456818179353 3.1184e-08 au
q 2.686269813488601 1.6496e-07 au
i 11.97249495932116 6.188e-06 deg
node 356.3982382557754 2.4847e-05 deg
peri 262.1173114385425 3.6977e-05 deg
M 271.7675884512877 3.3614e-05 deg
tp 2459900.910862161307
(2022-Nov-17.41086216)
0.00019688 TDB
period 2058.063552732178
5.63
3.0403e-05
8.324e-08
d
yr
n .1749217119763298 2.584e-09 deg/d
Q 3.646643822870105 3.5914e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      17378 days (47.58 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:18:49  

Additional Information
 Earth MOID = 1.70573 au 
 Jupiter MOID = 1.61721 au 
 T_jup = 3.152 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457398.5 (2016-Jan-11.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533968991569278 4.8657e-08  
q 2.682431675516549 1.6524e-07 au
tp 2457839.558606924701
(2017-Mar-27.05860692)
0.00017667 TDB
node 356.4447195526589 2.4837e-05 deg
peri 261.4172096910176 3.6704e-05 deg
i 11.97626148943742 6.1914e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      17378 days (47.58 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:18:49  

Additional Information
 Jupiter MOID = 1.61721 au 
 T_jup = 3.152 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.367514782567234E-15 -7.943825792270772E-15 -1.747950720830761E-12 -4.50393417402112E-15 -1.384410188835488E-13 4.817980830260903E-15
q -7.943825792270772E-15 2.730328295755855E-14 8.255920072550487E-12 1.88677176971849E-14 8.117491335383908E-13 -1.547573690568987E-14
tp -1.747950720830761E-12 8.255920072550487E-12 3.121348236875902E-8 2.956079571867065E-11 4.790053971555663E-9 2.317902669339339E-11
node -4.50393417402112E-15 1.88677176971849E-14 2.956079571867065E-11 6.168781722427718E-10 -5.988674118737979E-10 -6.283154212697851E-11
peri -1.384410188835488E-13 8.117491335383908E-13 4.790053971555663E-9 -5.988674118737979E-10 1.347203628500933E-9 6.537625690769434E-11
i 4.817980830260903E-15 -1.547573690568987E-14 2.317902669339339E-11 -6.283154212697851E-11 6.537625690769434E-11 3.833286659591826E-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 14.73   n/a MPCxxxxx  
diameter diameter 6.735 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136553 (1445 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ 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
1919-Jul-24 21:05 00:04 Jupiter 1.92989620678535 1.92989432399366 1.9298980895778 2.93526127142087 2.7817203292318 2422164.378433791 4.28586630739107 152.067104349343 30.3145955357174 80.4421754368261 821520.701048204 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
1930-Jan-03 08:40 00:04 Jupiter 1.70950404977649 1.70950275686612 1.70950534272291 1.24352087301723 0.745243014949472 2425979.861069784 4.35905950324246 1762.59024223311 362.847803866758 -12.2650903734899 611754.09175492 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
1940-Jul-13 21:12 00:03 Jupiter 1.63699483948598 1.63699385907672 1.63699581991665 3.23014811508541 3.06577988249223 2429824.383525290 2.91258890402957 657.94357026515 31.0670864480154 -89.7096950222606 1148852.84468616 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
1951-Mar-24 06:05 00:02 Jupiter 1.89877431925744 1.89877250902371 1.89877612949613 4.68266154686097 4.58640828746818 2433729.753261738 2.31206148931004 256.060058650598 61.710655996473 76.5838394660267 1288896.20980755 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
2026-Jul-24 14:01 < 00:01 Jupiter 1.94331892045708 1.943318234573 1.94331960634104 3.33107668985508 3.19755284048771 2461246.084293599 0.575702754834328 80.596708999129 28.4663844245598 -89.4399066121548 1744362.0284737 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
2037-Jan-28 05:24 00:01 Jupiter 1.74015540012024 1.74015452601096 1.74015627423299 1.18434328672604 0.655108289857647 2465086.725300540 1.38174719145101 1123.24152713039 386.392353274531 19.6538477742808 1167796.24489779 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
2047-Jul-10 15:09 00:02 Jupiter 1.65939715036772 1.65939634231367 1.65939795842668 2.86360413892648 2.6794306988121 2468902.131107648 1.7831309298014 504.034704750212 38.6938583705545 88.6977958102259 2079050.64237919 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
2058-Mar-10 19:29 00:02 Jupiter 1.86726269005656 1.86726146683757 1.86726391327609 4.56632367037341 4.46587924399094 2472798.311567159 2.12493811600474 232.227275829388 53.6531424730414 85.7637312611842 1552325.88372738 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
2133-Jul-12 16:44 00:05 Jupiter 1.95229325943661 1.95229124647659 1.95229527239786 3.62213058983697 3.50030133540193 2500315.197204127 4.92968706807667 152.475813145252 48.5298454353718 66.7292666046984 1037194.10150728 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
2144-Feb-09 21:54 00:07 Jupiter 1.75269665144326 1.75269528117362 1.75269802170264 1.56915482935069 1.22299244868853 2504179.412336673 6.65413380035838 907.472068450124 130.577746919296 -13.4342331813928 378758.938413526 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
2154-Jul-08 16:01 00:07 Jupiter 1.68425940498394 1.68425856681942 1.6842602431499 2.40975229914098 2.19114036555741 2507981.167340562 6.85904922030946 918.473051309044 65.1989089218659 78.9173954494481 1753709.40007422 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18
2165-Feb-22 22:15 00:07 Jupiter 1.84632659740649 1.84632361349882 1.84632958131343 4.40367080412131 4.29823157664861 2511863.427401208 6.50140444062573 256.796783711216 128.13668649128 82.9859108943523 549643.779692965 T 23 CATAB v2.0g-lin.ifort 2021-Jul-09 01:18:51 2021-Jul-09 01:18

Alternate Designations
 1445 T-2 = 2001 RW85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-01 08:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin