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JPL Small-Body Database Browser
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87564 (2000 RQ9)
Classification: Main-belt Asteroid          SPK-ID: 2087564
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .298235482058396 5.1757e-08  
a 2.751138437928812 1.3698e-08 au
q 1.930651339683731 1.4449e-07 au
i 12.20037613538816 5.2323e-06 deg
node 55.8493974115949 2.2851e-05 deg
peri 323.3651792683012 2.3957e-05 deg
M 128.1807261948818 6.8137e-06 deg
tp 2458407.045645401225
(2018-Oct-15.54564540)
3.0461e-05 TDB
period 1666.737067246307
4.56
1.2448e-05
3.408e-08
d
yr
n .2159908764702597 1.6131e-09 deg/d
Q 3.571625536173893 1.7783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      8875 days (24.30 yr)  
   first obs. used      1995-10-16  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4671  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 21:09:53  

Additional Information
 Earth MOID = .948984 au 
 Jupiter MOID = 1.92859 au 
 T_jup = 3.248 
[ 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 15.0   n/a MPO468850  
diameter diameter 2.284 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.407   0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

87564 (2000 RQ9)          Discovered 2000-Sep-01 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1934-Apr-25 11:09 00:02 Jupiter 1.93742517627874 1.93742462693438 1.93742572562532 2.33655627503594 2.14128831226451 2427552.964644026 1.70952556102486 287.447590681256 39.4112193483945 84.956882103152 1711215.71834157 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 21:10:36 2020-Feb-23 21:10
1993-Oct-09 13:34 < 00:01 Jupiter 1.92678353263246 1.92678306944126 1.92678399582761 2.45794661566539 2.27206794981092 2449270.064985309 0.498647049980595 250.49073163209 14.3546108743782 83.5631396628066 2043239.90955996 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 21:10:36 2020-Feb-23 21:10
2053-Mar-25 22:33 < 00:01 Jupiter 1.92070116681667 1.92070073014722 1.92070160349048 2.565266097446 2.38717345956058 2470987.439653868 0.819319947723314 255.123049085027 17.8810954286504 85.2136082395402 1958388.00239396 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 21:10:36 2020-Feb-23 21:10
2112-Sep-11 00:35 00:02 Jupiter 1.91984547733838 1.91984501999159 1.91984593469782 2.65960338718075 2.48819292691398 2492705.524240884 2.01660697459371 366.683305210079 20.6515350656922 87.9238617007275 1812269.45535384 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 21:10:36 2020-Feb-23 21:10
2172-Feb-28 07:51 00:03 Jupiter 1.92509713590929 1.92509643776151 1.92509783411079 2.74185300878211 2.57638873865066 2514424.826997585 3.23799162581642 578.717389484951 15.3756676684537 87.8087779553671 1848199.94801547 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 21:10:36 2020-Feb-23 21:10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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