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JPL Small-Body Database Browser
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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06582678701873224 3.7156e-08  
a 2.784315980066584 1.398e-08 au
q 2.601033405053888 1.0255e-07 au
i 1.135803746717171 3.9098e-06 deg
node 129.4550912513847 0.00020881 deg
peri 194.700399684566 0.00021104 deg
M 78.52686421621719 3.0467e-05 deg
tp 2458230.337890644807
(2018-Apr-21.83789065)		 0.00014389 TDB
period 1696.977979420569
4.65		 1.2781e-05
3.499e-08		 d
yr
n .2121418217359082 1.5977e-09 deg/d
Q 2.96759855507928 1.49e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      10688 days (29.26 yr)  
   first obs. used      1990-08-16  
   last obs. used      2019-11-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52275  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:20:21  

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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