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JPL Small-Body Database Browser
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100040 (1991 RQ17)
Classification: Main-belt Asteroid          SPK-ID: 2100040
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3687554438327896 5.3072e-08  
a 3.166306934010837 2.7473e-08 au
q 1.998714015248832 1.7527e-07 au
i 22.58173583942454 7.8138e-06 deg
node 349.5071719098506 1.4237e-05 deg
peri 75.43410487544753 1.747e-05 deg
M 344.5596214274574 1.0375e-05 deg
tp 2459088.763955949625
(2020-Aug-27.26395595)		 6.0175e-05 TDB
period 2057.91742686737
5.63		 2.6783e-05
7.333e-08		 d
yr
n .1749341325847092 2.2767e-09 deg/d
Q 4.333899852772842 3.7603e-08 au
   Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      10279 days (28.14 yr)  
   first obs. used      1991-09-11  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50867  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 09:29:57  

Additional Information
 Earth MOID = 1.13357 au 
 Jupiter MOID = 1.9849 au 
 T_jup = 2.982 
[ 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 13.9   n/a MPO320180  
diameter diameter 9.388 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100040 (1991 RQ17)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1991 RQ17 = 2003 XK10 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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