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22687 (1998 QJ64)
Classification: Main-belt Asteroid          SPK-ID: 2022687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116200976586306 3.8736e-08  
a 2.655319197739802 1.0509e-08 au
q 2.358932209573249 1.0338e-07 au
i 15.20231828191537 4.2542e-06 deg
node 175.065333771238 1.2598e-05 deg
peri 184.5346547860574 2.0535e-05 deg
M 23.60462957681817 1.4941e-05 deg
tp 2459096.874123085835
(2020-Sep-04.37412309)
6.5671e-05 TDB
period 1580.423686281294
4.33
9.3822e-06
2.569e-08
d
yr
n .2277870188386463 1.3523e-09 deg/d
Q 2.951706185906355 1.1682e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1672  
   data-arc span      13927 days (38.13 yr)  
   first obs. used      1983-01-15  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48243  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:09:24  

Additional Information
 Earth MOID = 1.35369 au 
 Jupiter MOID = 2.50067 au 
 T_jup = 3.330 
[ 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 14.28   n/a E2021B10  
diameter diameter 4.445 km 0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.225   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22687 (1998 QJ64)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QJ64 = 1985 RB5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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