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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0663093332691807 3.4723e-08  
a 2.783460321859229 1.2043e-08 au
q 2.598890923735524 9.7247e-08 au
i 1.13606568385415 3.6196e-06 deg
node 129.4562914541375 0.00019817 deg
peri 195.0943965587386 0.00020017 deg
M 246.9607414829003 2.9036e-05 deg
tp 2459929.101982209179
(2022-Dec-15.60198221)
0.00013719 TDB
period 1696.195782868659
4.64
1.1008e-05
3.014e-08
d
yr
n .2122396504200457 1.3774e-09 deg/d
Q 2.968029719982933 1.2841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1701  
   data-arc span      11251 days (30.80 yr)  
   first obs. used      1990-08-16  
   last obs. used      2021-06-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50629  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:39:04  

Additional Information
 Earth MOID = 1.58594 au 
 Jupiter MOID = 2.23572 au 
 T_jup = 3.329 
[ 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 14.22   n/a MPCxxxxx  
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

Alternate Designations
 1990 QR1 = 1997 AE14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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