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5540 Smirnova (1971 QR1)
Classification: Main-belt Asteroid          SPK-ID: 2005540
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3111802986075441 4.2372e-08  
a 2.596099733922595 1.2536e-08 au
q 1.788244643505596 1.1269e-07 au
i 4.57501790341607 4.0115e-06 deg
node 223.0342804759145 5.482e-05 deg
peri 124.7048422999651 5.5001e-05 deg
M 133.1796874971398 5.5381e-06 deg
tp 2458035.282009621012
(2017-Oct-08.78200962)
2.2628e-05 TDB
period 1527.849181511298
4.18
1.1066e-05
3.03e-08
d
yr
n .2356253512168654 1.7066e-09 deg/d
Q 3.403954824339594 1.6436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1504  
   data-arc span      17383 days (47.59 yr)  
   first obs. used      1971-08-30  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52137  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:39:23  

Additional Information
 Earth MOID = .7859 au 
 Jupiter MOID = 2.05891 au 
 T_jup = 3.343 
[ 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 14.2   n/a MPO319153  
diameter diameter 3.606 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.341   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5540 Smirnova (1971 QR1)          Discovered 1971-Aug-30 by Smirnova, T. M. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1971 QR1 = 1988 VX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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