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6685 Boitsov (1978 QG2)
Classification: Main-belt Asteroid          SPK-ID: 2006685
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746238097195811 3.0572e-08  
a 2.232325767933577 6.5529e-09 au
q 1.842508537801826 6.7192e-08 au
i 3.727731937745998 3.9196e-06 deg
node 189.0822893494565 5.0003e-05 deg
peri 92.57229798398157 5.1467e-05 deg
M 233.0764196870234 1.3685e-05 deg
tp 2459430.011304829240
(2021-Aug-03.51130483)
4.6915e-05 TDB
period 1218.245414738884
3.34
5.3642e-06
1.469e-08
d
yr
n .2955069607852056 1.3012e-09 deg/d
Q 2.622142998065327 7.6972e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2079  
   data-arc span      15214 days (41.65 yr)  
   first obs. used      1978-08-31  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:37:13  

Additional Information
 Earth MOID = .830805 au 
 Jupiter MOID = 2.51778 au 
 T_jup = 3.618 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456818.5 (2014-Jun-10.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1748362365651391 3.0564e-08  
q 1.841702772321365 6.7201e-08 au
tp 2456993.948351058887
(2014-Dec-02.44835106)
4.4434e-05 TDB
node 189.106691854562 5.0001e-05 deg
peri 92.65885990688565 5.1465e-05 deg
i 3.727491500287457 3.9207e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2079  
   data-arc span      15214 days (41.65 yr)  
   first obs. used      1978-08-31  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:37:13  

Additional Information
 Jupiter MOID = 2.51778 au 
 T_jup = 3.618 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.341312492825484E-16 -2.047666301632906E-15 4.203327429379084E-13 -6.453654539307013E-17 1.04840766791061E-13 1.970906015388785E-16
q -2.047666301632906E-15 4.516020079933658E-15 -9.122980265231351E-13 4.537997192778797E-16 -2.295152735533393E-13 -4.654315859906017E-16
tp 4.203327429379084E-13 -9.122980265231351E-13 1.974345360337393E-9 -1.983259100029476E-12 5.505584973394421E-10 -6.024975683902387E-13
node -6.453654539307013E-17 4.537997192778797E-16 -1.983259100029476E-12 2.500064048958352E-9 -2.494731455111427E-9 -3.099717552855731E-11
peri 1.04840766791061E-13 -2.295152735533393E-13 5.505584973394421E-10 -2.494731455111427E-9 2.648686291097373E-9 3.075012158888381E-11
i 1.970906015388785E-16 -4.654315859906017E-16 -6.024975683902387E-13 -3.099717552855731E-11 3.075012158888381E-11 1.53717799745636E-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 14.3   n/a MPO358696  
diameter diameter 3.559 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.5 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Polishook, D. (2009) Minor Planet Bull. 36, 104-107.]
geometric albedo albedo 0.350   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6685 Boitsov           Discovered 1978 Aug. 31 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Named in memory of Vasilij Vasil'evich Boitsov (Bojtsov, 1908-1997), specialist on the technology of mechanical engineering and standardization. From 1963 to 1984 he headed the U.S.S.R. State Committee for standards and represented his country in the International Organization for Standardization, of which he served as president (1977-1979). Boitsov was an initiator and active participant in fundamental research on the creation of standard measurement systems. Name suggested by the Institute of Theoretical Astronomy and supported by the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980211/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1978 QG2 = 1988 RZ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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