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6631 Pyatnitskij (1983 RQ4)
Classification: Main-belt Asteroid          SPK-ID: 2006631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1501653346714375 2.8346e-08  
a 2.468061585448144 7.8659e-09 au
q 2.097444291479605 7.0175e-08 au
i 7.140477120152364 4.098e-06 deg
node 192.1136129531416 2.9068e-05 deg
peri 205.7910145786859 3.3014e-05 deg
M 172.4851739395623 1.6033e-05 deg
tp 2458521.950264200360
(2019-Feb-07.45026420)
6.2395e-05 TDB
period 1416.225518452176
3.88
6.7704e-06
1.854e-08
d
yr
n .2541968036230924 1.2152e-09 deg/d
Q 2.838678879416684 9.047e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2637  
   data-arc span      25980 days (71.13 yr)  
   first obs. used      1949-11-30  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42836  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:07:53  

Additional Information
 Earth MOID = 1.10567 au 
 Jupiter MOID = 2.58744 au 
 T_jup = 3.460 
[ 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 13.29   n/a E2021B10  
diameter diameter 14.336 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6631 Pyatnitskij (1983 RQ4)          Discovered 1983-Sep-04 by Zhuravleva, L. V. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1983 RQ4 = 1987 SR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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