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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1500124526617945 2.8331e-08  
a 2.468475820727821 7.8774e-09 au
q 2.098173708524104 7.0148e-08 au
i 7.139666475793611 4.0987e-06 deg
node 192.1140683799007 2.9083e-05 deg
peri 205.8345211971354 3.304e-05 deg
M 121.6047932387099 1.6004e-05 deg
tp 2458521.991192243057
(2019-Feb-07.49119224)
6.2514e-05 TDB
period 1416.58207875365
3.88
6.7809e-06
1.857e-08
d
yr
n .2541328211046822 1.2165e-09 deg/d
Q 2.838777932931537 9.0591e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2634  
   data-arc span      25763 days (70.54 yr)  
   first obs. used      1949-11-30  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42708  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:33:05  

Additional Information
 Earth MOID = 1.10751 au 
 Jupiter MOID = 2.58619 au 
 T_jup = 3.459 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457120.5 (2015-Apr-08.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1484249116365528 2.8332e-08  
q 2.102422169859286 7.0085e-08 au
tp 2457102.743973532274
(2015-Mar-21.24397353)
6.2703e-05 TDB
node 192.1477464440781 2.9102e-05 deg
peri 205.3957465649265 3.3166e-05 deg
i 7.134448861466135 4.101e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2634  
   data-arc span      25763 days (70.54 yr)  
   first obs. used      1949-11-30  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42708  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:33:05  

Additional Information
 Jupiter MOID = 2.58619 au 
 T_jup = 3.459 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.027008032955907E-16 -1.97656034198323E-15 -7.370391829995411E-13 -2.74054890489086E-15 -1.96164993364256E-13 6.661346643223547E-16
q -1.97656034198323E-15 4.911973775743827E-15 1.855702317148426E-12 6.090597602848862E-15 4.935219422018793E-13 -1.612792519922312E-15
tp -7.370391829995411E-13 1.855702317148426E-12 3.931671016730483E-9 2.087526062778891E-12 1.01169577988047E-9 -2.419352295516986E-12
node -2.74054890489086E-15 6.090597602848862E-15 2.087526062778891E-12 8.469190298650166E-10 -8.39594181297135E-10 -5.624386157832973E-11
peri -1.96164993364256E-13 4.935219422018793E-13 1.01169577988047E-9 -8.39594181297135E-10 1.099965265985322E-9 5.520865908416541E-11
i 6.661346643223547E-16 -1.612792519922312E-15 -2.419352295516986E-12 -5.624386157832973E-11 5.520865908416541E-11 1.681818934349137E-11

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 13.2   n/a MPO358695  
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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