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21586 Pourkaviani (1998 SU129)
Classification: Main-belt Asteroid          SPK-ID: 2021586
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1404842285810296 1.8262e-08  
a 3.093227752834369 1.1925e-08 au
q 2.658678038152001 5.609e-08 au
i 1.804564574036348 2.4513e-07 deg
node 125.4634487836867 8.1425e-06 deg
peri 143.3027424503494 8.9713e-06 deg
M 161.5851340617625 7.594e-06 deg
tp 2458504.602028657491
(2019-Jan-21.10202866)
3.9361e-05 TDB
period 1987.084217540557
5.44
1.1491e-05
3.146e-08
d
yr
n .1811699759990934 1.0477e-09 deg/d
Q 3.527777467516736 1.3601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3128  
   data-arc span      13160 days (36.03 yr)  
   first obs. used      1985-03-22  
   last obs. used      2021-04-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46554  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:34:45  

Additional Information
 Earth MOID = 1.64281 au 
 Jupiter MOID = 1.56224 au 
 T_jup = 3.208 
[ 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 12.65   n/a E2021B10  
diameter diameter 17.113 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 27.0489 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.060   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21586 Pourkaviani           Discovered 1998 Sept. 26 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Shahin Pourkaviani (b. 1989) was awarded second place in the 2006 Intel International Science and Engineering Fair for his behavioral and social sciences team project. He attends the Lake Brantley High School, Altamonte Springs, Florida, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060711/MPCPages.arcLast Updated: 2006-07-17

[ 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
1907-Oct-12 06:20 00:02 Jupiter 1.87463001788086 1.87462884188099 1.87463119388062 2.375261988887 2.17674080264874 2417860.763560255 2.06166838669958 60.493094631965 2.25796131743773 -66.0063444548353 5126688.08260535 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
1917-Aug-28 20:22 00:02 Jupiter 1.57618070472326 1.57618052147318 1.57618088797352 1.61820288500132 1.24249834914779 2421469.348825563 1.92054691181889 73.2993002351769 16.9050128799321 45.9175944010848 6096048.3577727 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
1927-Jul-17 16:34 00:02 Jupiter 1.97511675462307 1.97511586911451 1.97511764013264 3.64766688425192 3.52814116597431 2425079.190572918 1.59700788833455 82.764349177687 4.57477667575219 -65.0230523365105 12012370.3306172 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
1978-May-20 10:26 < 00:01 Jupiter 1.71321921155837 1.71321881174859 1.71321961136796 1.85070377222166 1.56086397839647 2443648.934625108 0.722804309233243 14.4485861977182 11.2559418048165 58.5749000513092 3823878.59469003 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
1988-Mar-30 03:45 < 00:01 Jupiter 1.65050697147877 1.65050678513168 1.65050715782586 2.01309843468202 1.73959383628542 2447250.656590216 0.519974661111005 26.7715442163739 4.15667630925716 75.8207856984261 9004721.88099338 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
2048-Dec-19 22:14 < 00:01 Jupiter 1.60290948360172 1.6029093100307 1.60290965717265 1.56577234700365 1.18101088905495 2469430.426367317 0.689735294642578 33.2470513164316 6.09413225374262 -4.74762849216092 5123690.97603342 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
2058-Oct-31 07:46 < 00:01 Jupiter 1.79189772244404 1.79189729280622 1.79189815208217 2.71569556126568 2.53566772264623 2473032.823489173 0.889568963712291 46.5604705955463 2.45035124222377 -77.4675350269368 11582267.5262034 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
2109-Sep-03 17:07 00:02 Jupiter 1.88631615634881 1.8863152648304 1.88631704786733 2.38089284433668 2.18416578309765 2491602.213249136 1.82519250488636 59.9762264426646 1.96890210742093 -71.8233291356285 5552672.88331114 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
2119-Jul-24 00:09 00:02 Jupiter 1.58330140799559 1.58330118860028 1.58330162739091 1.60826484074438 1.23149139352571 2495212.506209454 2.10321452172829 70.8775208092131 14.015374300357 34.5944130108473 6044617.41173078 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
2129-Jun-12 09:11 00:02 Jupiter 1.95565407794397 1.95565293549678 1.95565522039311 3.57846267579616 3.45530978938506 2498823.882718264 2.18224221889375 115.239703784965 4.58159469654304 -67.2965213426659 11959230.5077038 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
2180-Apr-08 20:41 00:03 Jupiter 1.72849567219914 1.72849435782831 1.72849698656918 1.86323550052888 1.57847316479922 2517387.361654575 3.2848658378814 78.9034848621466 10.6658063735072 76.5953499503438 4213737.69644158 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36
2190-Feb-21 14:08 00:04 Jupiter 1.64972250767574 1.64972144198939 1.6497235733651 1.98375384377218 1.70540689111812 2520993.088808285 3.56193004243052 159.5669321811 4.62085351367191 74.4220286851471 8900646.12578513 T 42 CATAB v2.0g-lin.ifort 2021-Jul-08 18:36:20 2021-Jul-08 18:36

Alternate Designations
 1998 SU129 = 1985 FO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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