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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1501653140676016 8.3071e-09  
a 2.468061585718927 7.7809e-09 au
q 2.097444342561261 1.9455e-08 au
i 7.140478241994731 4.138e-07 deg
node 192.1136161653785 2.9488e-06 deg
peri 205.7910073324018 8.37e-06 deg
M 172.4851788027962 6.6069e-06 deg
tp 2458521.950244956923
(2019-Feb-07.45024496)
2.4802e-05 TDB
period 1416.225518685247
3.88
6.6973e-06
1.834e-08
d
yr
n .2541968035812588 1.2021e-09 deg/d
Q 2.838678828876592 8.9494e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2712  
   data-arc span      26030 days (71.27 yr)  
   first obs. used      1949-11-30  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42904  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:56:33  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2024-Jan-15 17:49 < 00:01 Juno 0.0411908061740497 0.0411900300134186 0.0411915823499271 3.1784856597964 3.17848556687292 2460325.242031923 0.780840833978846 106.044074158866 35.4257947915488 81.0984908233552 171815.079124299 T 39 CATAB v2.0f-lin.ifort 2021-Apr-12 18:57:51 2021-Apr-12 18:57
2189-Apr-18 14:32 < 00:01 Thisb 0.028354669585932 0.0283460802625799 0.0283632785670091 4.63116785377524 4.63116780185226 2520684.105875128 0.429115229458644 1255.92919526994 33.8719655719717 -70.1004797507196 117706.909983528 T 39 CATAB v2.0f-lin.ifort 2021-Apr-12 18:57:51 2021-Apr-12 18:57

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