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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1600119665413617 4.0423e-08  
a 3.153071139402813 1.7804e-08 au
q 2.648542025742156 1.2986e-07 au
i 2.157964844122244 3.7885e-06 deg
node 52.06743892005794 0.00012785 deg
peri 308.8590815996172 0.00012839 deg
M 127.6289584707135 1.35e-05 deg
tp 2458475.486980842693
(2018-Dec-22.98698084)
7.4797e-05 TDB
period 2045.027163302614
5.60
1.7321e-05
4.742e-08
d
yr
n .1760367815450522 1.491e-09 deg/d
Q 3.657600253063469 2.0652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1280  
   data-arc span      11175 days (30.60 yr)  
   first obs. used      1990-08-16  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:59:57  

Additional Information
 Earth MOID = 1.64465 au 
 Jupiter MOID = 1.79672 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 14.08   n/a E2021B10  
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 1.83630698521008 1.83630633107569 1.83630763934499 2.04275067658191 1.80285942391998 2418763.337459549 2.66002843274503 111.959340939822 10.6678934548081 89.9346699214521 2266194.33361571 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
1920-Sep-30 00:51 00:02 Jupiter 1.78674992013421 1.78674945461029 1.78675038565895 1.95035753737635 1.68990507888246 2422597.535216107 2.37248732997084 132.005723184881 13.7981804241825 -81.8418772261156 2722129.47968597 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
1931-Mar-23 02:20 00:02 Jupiter 1.92628633823824 1.92628561900592 1.92628705747033 2.84866789388857 2.68988346304406 2426423.597286041 2.0893867794515 45.6478456845071 15.1165076499161 83.6692590921524 1680230.4683551 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2005-Feb-18 17:41 < 00:01 Jupiter 1.82552931959303 1.82552894701886 1.8255296921671 2.00045727673271 1.75324117458745 2453420.236798408 0.361988946453517 63.2306616576334 12.8786871950845 -89.7193451960581 2839739.54027465 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2015-Aug-19 17:00 < 00:01 Jupiter 1.80299681127447 1.80299640086608 1.80299722168277 2.01414785291345 1.76556499130208 2457254.208586727 0.20360630611107 49.2609716426845 10.8957923292712 -83.3955108576713 2725397.57708502 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2026-Feb-09 12:27 < 00:01 Jupiter 1.96085519791334 1.96085481559337 1.96085558023331 3.00374104269553 2.85631379966586 2461081.019053067 0.371437533194632 37.9116603166971 11.8441719921621 -87.3404150776813 3486083.78408859 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2089-Jul-09 22:11 00:02 Jupiter 1.9835870219234 1.98358644807471 1.98358759577198 2.71404333888633 2.55186209213914 2484242.424196275 1.76090863396116 55.3000760497184 13.0036788710537 -89.1075728358223 2161595.21759292 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2100-Jan-09 10:09 00:02 Jupiter 1.81118257677306 1.81118210798931 1.81118304555661 1.95208775547807 1.6956772188106 2488077.922613756 2.06304298596941 97.835531549621 16.0400409534537 87.2913043785857 2305658.59834262 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2110-Jul-09 19:03 00:02 Jupiter 1.81251194868241 1.81251145293375 1.8125124444319 2.06411530305303 1.82371396229498 2491911.293713670 2.40111727346041 117.669323488732 8.55670536473559 -85.7593593793855 2782354.53800153 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2120-Dec-31 15:18 00:03 Jupiter 1.98618029370235 1.98617947805368 1.98618110935081 3.14146354170606 3.00264502533744 2495739.137242224 2.69680718599225 46.0266132233144 20.9718477971406 73.8343814439045 1643675.69577308 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2184-May-30 19:27 00:04 Jupiter 1.96025014675266 1.96024898554065 1.96025130796423 2.60288987188758 2.43122135858521 2518900.310427081 4.127214914426 71.624482808249 18.084108275931 -80.6726471229717 1283763.76496757 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00
2194-Nov-30 06:45 00:04 Jupiter 1.80814519183546 1.80814460145018 1.80814578222291 1.93794764932286 1.67891170847441 2522735.781580617 4.42321392479249 186.509734171554 16.6622990563889 87.7458529552322 2308586.73291163 T 37 CATAB v2.0g-lin.ifort 2021-May-04 02:00:05 2021-May-04 02:00

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