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11879 (1990 QR1)
Classification: Main-belt Asteroid          SPK-ID: 2011879
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06582678810679585 3.7422e-08  
a 2.784315979512411 1.4125e-08 au
q 2.601033401506682 1.0354e-07 au
i 1.1358032451097 3.949e-06 deg
node 129.4550649631213 0.00021118 deg
peri 194.7004273230721 0.00021343 deg
M 78.5268630707524 3.0735e-05 deg
tp 2458230.337896154842
(2018-Apr-21.83789615)		 0.0001452 TDB
period 1696.977978913935
4.65		 1.2914e-05
3.536e-08		 d
yr
n .2121418217992433 1.6143e-09 deg/d
Q 2.96759855751814 1.5055e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      10347 days (28.33 yr)  
   first obs. used      1990-08-16  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52355  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:14:34  

Additional Information
 Earth MOID = 1.58783 au 
 Jupiter MOID = 2.23546 au 
 T_jup = 3.328 
[ 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 14.2   n/a MPO358745  
diameter diameter 8.208 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11879 (1990 QR1)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QR1 = 1997 AE14 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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