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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1501653142230168 8.3099e-09  
a 2.468061585413219 7.7824e-09 au
q 2.097444341917886 1.9459e-08 au
i 7.140478218149889 4.138e-07 deg
node 192.1136161034884 2.9489e-06 deg
peri 205.7910073388559 8.3719e-06 deg
M 172.4851790486648 6.6076e-06 deg
tp 2458521.950244115759
(2019-Feb-07.45024412)
2.4805e-05 TDB
period 1416.225518422115
3.88
6.6986e-06
1.834e-08
d
yr
n .2541968036284881 1.2023e-09 deg/d
Q 2.838678828908552 8.951e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2708  
   data-arc span      26026 days (71.26 yr)  
   first obs. used      1949-11-30  
   last obs. used      2021-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42913  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 19:04:40  

Additional Information
 Earth MOID = 1.10567 au 
 Jupiter MOID = 2.58744 au 
 T_jup = 3.460 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457174.5 (2015-Jun-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483893474295778 8.3583e-09  
q 2.10242436392664 1.9625e-08 au
tp 2457102.744778478051
(2015-Mar-21.24477848)
2.4096e-05 TDB
node 192.1481159396095 2.9521e-06 deg
peri 205.3958964313344 8.4823e-06 deg
i 7.134508502054992 4.1382e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2708  
   data-arc span      26026 days (71.26 yr)  
   first obs. used      1949-11-30  
   last obs. used      2021-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42913  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 19:04:40  

Additional Information
 Jupiter MOID = 2.58744 au 
 T_jup = 3.460 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.98609840043211E-17 -1.553143804183715E-16 -1.421718830303555E-13 1.950725227917369E-15 -4.430516339196819E-14 1.941024330303988E-16
q -1.553143804183715E-16 3.851269199574905E-16 3.586058650297203E-13 -5.138344998247295E-15 1.120992844591982E-13 -4.396955603549735E-16
tp -1.421718830303555E-13 3.586058650297203E-13 5.806298827747669E-10 -2.785546360639726E-11 1.952497268343405E-10 8.774255987032718E-13
node 1.950725227917369E-15 -5.138344998247295E-15 -2.785546360639726E-11 8.71477850753758E-12 -1.603324099796425E-11 -2.696243554400547E-13
peri -4.430516339196819E-14 1.120992844591982E-13 1.952497268343405E-10 -1.603324099796425E-11 7.194942360498127E-11 5.234033033909204E-13
i 1.941024330303988E-16 -4.396955603549735E-16 8.774255987032718E-13 -2.696243554400547E-13 5.234033033909204E-13 1.712481846780734E-13

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

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