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15255 (1990 QQ8)
Classification: Main-belt Asteroid          SPK-ID: 2015255
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .159871990598952 4.1131e-08  
a 3.15303837791406 1.8664e-08 au
q 2.648955856002048 1.3299e-07 au
i 2.158049785485819 4.0997e-06 deg
node 52.07586128426014 0.00012798 deg
peri 308.8303345849682 0.00012859 deg
M 92.4602019088849 1.3576e-05 deg
tp 2458475.275895915643
(2018-Dec-22.77589592)
7.6054e-05 TDB
period 2044.995290586738
5.60
1.8157e-05
4.971e-08
d
yr
n .1760395252043397 1.5631e-09 deg/d
Q 3.657120899826072 2.1648e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1172  
   data-arc span      11028 days (30.19 yr)  
   first obs. used      1990-08-16  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52763  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:34:49  

Additional Information
 Earth MOID = 1.64668 au 
 Jupiter MOID = 1.79626 au 
 T_jup = 3.186 
[ 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 14.1   n/a MPO452386  
diameter diameter 9.478 km 0.460 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15255 (1990 QQ8)          Discovered 1990-Aug-16 by Elst, E. W. at La Silla
Reference: 20000621/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
1910-Apr-01 20:06 00:03 Jupiter 1.83630697774273 1.83630632221287 1.83630763327312 2.04275075571593 1.80285951112987 2418763.337425105 2.73848789212533 116.913916522654 10.9014397716833 89.8732404285832 2248303.85594829 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
1920-Sep-30 00:51 00:02 Jupiter 1.78674992672107 1.78674945992271 1.78675039352024 1.95035766709378 1.68990522807673 2422597.535184065 2.43944862138027 135.564229852426 13.9380775571167 -81.8831104654621 2693700.25557565 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
1931-Mar-23 02:20 00:02 Jupiter 1.926286349584 1.92628562968036 1.92628706948742 2.84866797905801 2.68988355330084 2426423.597241269 2.14567912513862 47.3340008161381 15.3268873129365 84.5884018462463 1660388.9274253 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2005-Feb-18 17:41 < 00:01 Jupiter 1.8255293270215 1.82552894565163 1.82552970839127 2.00045742266102 1.75324134070733 2453420.236802477 0.362197226673234 67.10094376446 13.2439292495855 89.6277991289025 2747042.16572778 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2015-Aug-19 17:00 < 00:01 Jupiter 1.80299680117529 1.80299638867326 1.80299721367711 2.01414790424815 1.76556504690411 2457254.208614582 0.227632179283172 52.8254846071524 11.0538527557734 -84.1408440179515 2691248.43539923 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2026-Feb-09 12:28 < 00:01 Jupiter 1.9608551686675 1.96085475121982 1.96085558611508 3.00374073171702 2.85631346954529 2461081.019101866 0.414749875450989 39.9501543505795 13.0152853932678 -87.7318999283024 3217074.89810305 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2089-Jul-09 22:11 00:02 Jupiter 1.98358702305844 1.98358638032582 1.98358766579083 2.71404331950908 2.55186207070173 2484242.424139513 1.85476470539489 56.6843631164629 14.605229303451 -88.6008178300785 1950771.05678144 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2100-Jan-09 10:08 00:02 Jupiter 1.81118257518968 1.81118207866111 1.81118307171804 1.9520878505283 1.69567732646908 2488077.922516181 2.17019498935924 103.130314425437 16.2867049774125 86.7683408698258 2232546.41119377 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2110-Jul-09 19:03 00:03 Jupiter 1.81251197782749 1.81251146105176 1.81251249460425 2.0641155172544 1.82371420743714 2491911.293570220 2.52215338777412 125.199835771386 8.60078722111041 -85.8713509626553 2742519.97342429 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2120-Dec-31 15:17 00:03 Jupiter 1.98618035632701 1.98617946435139 1.9861812483024 3.14146397253831 3.0026454797815 2495739.137058099 2.82793597491086 48.9237522465384 22.8850028023893 72.560325366208 1520246.90573158 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2184-May-30 19:26 00:04 Jupiter 1.96025002346489 1.96024877055685 1.96025127637248 2.60288925591462 2.43122068695848 2518900.310006903 4.31254430510916 73.8481382636288 19.4916347100852 -79.8845151354073 1203035.89333514 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34
2194-Nov-30 06:45 00:05 Jupiter 1.80814514826447 1.80814452593739 1.80814577059422 1.9379475743616 1.67891161368261 2522735.781079852 4.62106550734724 195.085938167028 16.8879225196842 87.5272110869581 2273366.72913901 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:34:52 2020-Nov-13 02:34

Alternate Designations
 1990 QQ8 = 1996 UE4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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