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101017 (1998 QR56)
Classification: Main-belt Asteroid          SPK-ID: 2101017
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1742972863387516 3.9594e-08  
a 2.358252455753617 7.8321e-09 au
q 1.947215452214064 9.3346e-08 au
i .7442595180274627 4.3952e-06 deg
node 338.8016852167015 0.00033891 deg
peri 72.72099438497578 0.00033937 deg
M 315.2387345873069 1.373e-05 deg
tp 2459164.968876144477
(2020-Nov-11.46887614)
5.0235e-05 TDB
period 1322.768578281117
3.62
6.5897e-06
1.804e-08
d
yr
n .2721564496699831 1.3558e-09 deg/d
Q 2.769289459293169 9.1972e-09 au
  Orbit Determination Parameters
   # obs. used (total)      483  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-08-26  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:55  

Additional Information
 Earth MOID = .958152 au 
 Jupiter MOID = 2.59166 au 
 T_jup = 3.532 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO210967  
diameter diameter 1.245 km 0.357 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.198   0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101017 (1998 QR56)          Discovered 1998-Aug-30 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 QR56 = 2002 XN24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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