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295581 (2008 ST112)
Classification: Main-belt Asteroid          SPK-ID: 2295581
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1767725560173237 7.1887e-08  
a 3.019075867416562 3.4903e-08 au
q 2.485386109523118 2.2366e-07 au
i 4.280261831340574 7.9528e-06 deg
node 138.2183712777722 7.7537e-05 deg
peri 192.1651600851394 7.9425e-05 deg
M 115.1634598129046 1.5471e-05 deg
tp 2458387.554769677041
(2018-Sep-26.05476968)
8.1953e-05 TDB
period 1916.061598659431
5.25
3.3227e-05
9.097e-08
d
yr
n .1878854000580531 3.2582e-09 deg/d
Q 3.552765625310006 4.1073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      5935 days (16.25 yr)  
   first obs. used      2003-10-29  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:41:02  

Additional Information
 Earth MOID = 1.47468 au 
 Jupiter MOID = 1.80826 au 
 T_jup = 3.219 
[ 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 15.9   n/a MPO455185  

295581 (2008 ST112)          Discovered 2008-Sep-22 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ 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
1932-Mar-14 00:13 00:05 Jupiter 1.79147840044605 1.79147754979319 1.7914792511034 1.81423952163728 1.5316175018476 2426780.509250172 4.50061536934278 256.732904174316 63.720853247855 -83.8326104807475 1243356.06774802 T 13 CATAB v2.0f-lin.ifort 2020-Feb-25 16:41:13 2020-Feb-25 16:41
1978-Dec-16 12:46 00:02 Jupiter 1.79432675113593 1.79432611551714 1.79432738675401 1.90339174516563 1.63670044623783 2443859.031789821 1.97093990607126 115.192396550803 41.2649431931128 -77.2416135535035 1387672.05211824 T 13 CATAB v2.0f-lin.ifort 2020-Feb-25 16:41:13 2020-Feb-25 16:41
2025-Sep-15 16:41 < 00:01 Jupiter 1.87864685308959 1.87864617394409 1.87864753223476 2.34878775171261 2.14827072005257 2460934.195207498 0.716697329795502 83.9603689133456 12.1516327303037 88.0998622915291 1676301.43529634 T 13 CATAB v2.0f-lin.ifort 2020-Feb-25 16:41:13 2020-Feb-25 16:41
2063-May-20 02:30 00:03 Jupiter 1.86432189446834 1.86432085571678 1.86432293322213 1.95790246809982 1.710180268374 2474694.604497124 2.62250529550729 174.684018020495 41.3232637665816 -87.3073177583629 1256522.54581581 T 13 CATAB v2.0f-lin.ifort 2020-Feb-25 16:41:13 2020-Feb-25 16:41
2110-Feb-22 05:49 00:05 Jupiter 1.79127425707521 1.79127350860444 1.79127500554985 1.82274004615215 1.54164218894945 2491773.742657506 5.14343094581033 290.979603646698 64.1561975536964 -85.9611023168086 1256550.18318464 T 13 CATAB v2.0f-lin.ifort 2020-Feb-25 16:41:13 2020-Feb-25 16:41
2156-Nov-26 08:42 00:08 Jupiter 1.81440945783598 1.81440806967493 1.81441084600177 1.99215998632421 1.74213647101594 2508852.862315536 7.77454581406439 241.455486927969 31.0250865560807 -80.1801203146528 1290713.33145805 T 13 CATAB v2.0f-lin.ifort 2020-Feb-25 16:41:13 2020-Feb-25 16:41
2194-Jul-27 03:11 00:10 Jupiter 1.97506612119049 1.9750623097481 1.97506993267274 2.23921607308415 2.03871847435694 2522609.632490675 9.63898811948713 523.629388069232 12.278237234792 -83.0832537552724 1417709.6799662 T 13 CATAB v2.0f-lin.ifort 2020-Feb-25 16:41:13 2020-Feb-25 16:41

Alternate Designations
 2008 ST112 = 2006 EX39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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