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20664 Senec (1999 UV4)
Classification: Outer Main-belt Asteroid          SPK-ID: 2020664
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06847975489855927 3.2891e-08  
a 3.479734153407247 2.1363e-08 au
q 3.241442811469773 1.1069e-07 au
i 10.29368934567285 3.642e-06 deg
node 163.147360819474 2.0126e-05 deg
peri 148.7348070810809 3.7579e-05 deg
M 187.4385180065354 3.3415e-05 deg
tp 2460532.972383243481
(2024-Aug-10.47238324)
0.00022244 TDB
period 2370.923413738114
6.49
2.1833e-05
5.978e-08
d
yr
n .1518395735239741 1.3983e-09 deg/d
Q 3.718025495344721 2.2826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2157  
   data-arc span      10446 days (28.60 yr)  
   first obs. used      1992-10-04  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45704  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:24:52  

Additional Information
 Earth MOID = 2.23277 au 
 Jupiter MOID = 1.61071 au 
 T_jup = 3.101 
[ 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 12.8   n/a MPO502322  
diameter diameter 15.156 km 0.396 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20664 Senec           Discovered 1999 Oct. 31 by A. Galad and J. Toth at Modra.
The town of Senec is located in the south-west of Slovakia. The historical development of the town is dated from the middle of the 13th century. Senec actively supports amateur astronomy. In 1982 an astronomical observatory was built on the building of Albert Molnár Szenczi Elementary School.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-09-25Last Updated: 2018-10-01

[ 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
1913-Dec-27 07:37 00:03 Jupiter 1.91086758425228 1.9108663667181 1.91086880178787 3.85187533254766 3.73502499356205 2420128.817097383 3.2394752138257 105.10008559975 18.8840376798336 -55.9590900694623 4787283.79068288 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
1928-Apr-07 03:31 00:03 Jupiter 1.53023441008438 1.53023391353739 1.53023490663467 3.40420300776596 3.23752200910483 2425343.646241488 2.88496446727024 217.576383874587 17.7488875396964 -89.2157679747068 2971745.75276283 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
1942-Dec-14 20:27 00:03 Jupiter 1.63816067770471 1.63816013838721 1.63816121702192 2.19794029487373 1.94854495964099 2430708.352186956 2.75596399401432 83.6107200807972 29.6186653264346 64.8666854150052 1554544.97281787 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
1957-Apr-19 05:23 00:02 Jupiter 1.83323005389433 1.83322927955388 1.83323082823696 3.69208611936466 3.56474729792388 2435947.724259810 1.75127953775305 126.1119914597 17.4973330318963 -75.9251440819069 3714378.7757685 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
1985-Oct-18 02:45 < 00:01 Jupiter 1.79328959247583 1.79328902939099 1.79329015556092 3.99543643224464 3.87541668370759 2446356.614639365 0.940574977924993 59.9606144338183 18.1427321096594 -70.3242059052691 4354181.57119592 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2000-Feb-09 21:56 < 00:01 Jupiter 1.54686298653074 1.54686254835799 1.54686342470341 2.82271824762268 2.62156243179837 2451584.413857392 0.618152757534669 51.5289827629822 18.3626656398119 81.8538703538867 2422727.27493146 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2014-Nov-01 03:53 < 00:01 Jupiter 1.65231201679527 1.65231157658618 1.65231245700436 2.80265187043689 2.61335037211356 2456962.661649713 0.237502996151961 48.8248998637188 18.2657729771036 87.5303529015558 3216165.99453503 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2029-Jan-28 04:52 < 00:01 Jupiter 1.913438159212 1.91343773730754 1.91343858111646 3.72517070658393 3.60438010120255 2462164.702434988 0.517837731638336 46.1116391748946 18.3970100292701 -85.5586463138767 3919478.43236392 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2057-Aug-06 15:19 00:01 Jupiter 1.67458223741539 1.6745817665681 1.67458270826354 3.988854011315 3.85996552468748 2472582.138428610 1.3433047308961 100.392965839364 16.465374895723 -81.4898331747362 4169125.8308053 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2072-Jan-13 13:02 00:02 Jupiter 1.59226080778519 1.59226031890244 1.59226129666822 2.08951190860246 1.81717794407809 2477855.043094222 2.18240942269954 87.7613848828278 19.58771155436 53.1725976450325 2046985.96847173 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2086-Aug-27 17:24 00:02 Jupiter 1.68100230722474 1.68100190897975 1.68100270547039 3.22597183804532 3.06580094070879 2483195.225000129 2.27399501559971 158.961373568194 15.1987128710289 -88.8271031294107 3430600.19962702 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2100-Nov-15 15:15 00:03 Jupiter 1.99465617591392 1.99465553475003 1.99465681707985 3.65855411587886 3.54058278745822 2488388.135391357 2.73838416868656 135.222630819768 17.5061459989129 -78.8183170411309 3998300.81623875 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2115-Feb-28 01:54 00:03 Jupiter 1.98733011400307 1.9873292132372 1.98733101476939 3.89507895654686 3.7840741956626 2493605.579145899 3.22463551166021 71.5433419700786 20.4763284192292 -51.8888337962807 5260748.34783971 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2129-May-28 07:44 00:04 Jupiter 1.59339572218724 1.5933950990738 1.59339634531101 3.75955575155481 3.61539664568464 2498808.822558939 3.60372802392897 269.645205374288 17.6090057206195 -86.1953701612836 3584281.34740116 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2144-Jan-06 08:12 00:05 Jupiter 1.61697742619003 1.61697695073205 1.61697790164792 1.95355441431323 1.66394511126773 2504144.841383524 4.98686697584316 116.329687575424 40.1794424024847 -57.4606940626856 2344249.6589713 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2158-Jun-15 09:20 00:04 Jupiter 1.74006647390972 1.74006547133644 1.74006747650238 3.45608137536546 3.31224192547652 2509418.888639276 4.44289509883559 323.219358298816 15.6351607652526 -82.4560087279786 3584949.28685249 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
2186-Dec-21 01:28 00:05 Jupiter 1.87619540113795 1.87619357078125 1.87619723150372 4.08177507005096 3.96963130466357 2519834.561447214 5.39474170127712 231.053907325167 16.9535725744889 -66.3452103017317 5268700.77220893 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 18:25:13 2021-Jul-08 18:25
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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