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JPL Small-Body Database Browser
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66055 (1998 QQ90)
Classification: Main-belt Asteroid          SPK-ID: 2066055
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1839502698488368 3.7333e-08  
a 3.102381322708349 1.9794e-08 au
q 2.531697441222156 1.1871e-07 au
i 21.01033240636513 4.5308e-06 deg
node 168.8001070968363 1.187e-05 deg
peri 114.5375319773677 1.858e-05 deg
M 48.46634151976552 1.1858e-05 deg
tp 2458731.793031032305
(2019-Sep-05.29303103)
6.5852e-05 TDB
period 1995.911096135034
5.46
1.9101e-05
5.23e-08
d
yr
n .1803687552502309 1.7262e-09 deg/d
Q 3.673065204194541 2.3435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1129  
   data-arc span      7731 days (21.17 yr)  
   first obs. used      1998-08-28  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51495  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:50:32  

Additional Information
 Earth MOID = 1.59412 au 
 Jupiter MOID = 1.99109 au 
 T_jup = 3.094 
[ 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 13.6   n/a MPO493331  
diameter diameter 9.240 km 2.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 4.30 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.082   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

66055 (1998 QQ90)          Discovered 1998-Aug-28 by LINEAR at Socorro
Reference: 20030910/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
1917-Jan-14 00:25 00:03 Jupiter 1.99597029145183 1.99596939530974 1.99597118760687 5.30772875856444 5.22716481337635 2421242.517392476 2.88669086038151 333.24857594535 27.3957084762603 82.9440979136047 2573429.04578312 T 25 CATAB v2.0f-lin.ifort 2020-Feb-23 14:50:51 2020-Feb-23 14:50
2121-Sep-24 19:06 00:03 Jupiter 1.98737413049108 1.98737352534369 1.9873747356414 4.90519548113938 4.81752415910241 2496006.295592011 3.07980379175488 400.339273376538 27.5907056228993 87.8641807346443 2799886.7095517 T 25 CATAB v2.0f-lin.ifort 2020-Feb-23 14:50:51 2020-Feb-23 14:50
2193-Jan-20 00:53 00:05 Jupiter 1.97420656248202 1.97420599764973 1.97420712731891 5.13168129732694 5.04738188454089 2522056.537015359 4.93424038433468 680.518270090551 26.2924141851061 89.9485024245287 3076273.14877977 T 25 CATAB v2.0f-lin.ifort 2020-Feb-23 14:50:51 2020-Feb-23 14:50
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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