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4682 Bykov (1973 SO4)
Classification: Main-belt Asteroid          SPK-ID: 2004682
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1947425967287736 1.4787e-08  
a 2.270906381342181 7.0082e-09 au
q 1.828664175711662 3.3531e-08 au
i 3.822266193033215 5.1484e-07 deg
node 321.2585711133914 7.9779e-06 deg
peri 88.77368504173445 8.4599e-06 deg
M 324.2645058012167 4.505e-06 deg
tp 2459520.577937180306
(2021-Nov-02.07793718)
1.6116e-05 TDB
period 1249.963331595148
3.42
5.7862e-06
1.584e-08
d
yr
n .2880084486483167 1.3332e-09 deg/d
Q 2.7131485869727 8.3729e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1890  
   data-arc span      32359 days (88.59 yr)  
   first obs. used      1932-11-22  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:35:59  

Additional Information
 Earth MOID = .843392 au 
 Jupiter MOID = 2.67333 au 
 T_jup = 3.584 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456874.5 (2014-Aug-05.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1950206351202571 1.4692e-08  
q 1.827885194871241 3.3313e-08 au
tp 2457021.391029244841
(2014-Dec-29.89102924)
9.1424e-06 TDB
node 321.3321332246539 7.9737e-06 deg
peri 88.83877045976686 8.4572e-06 deg
i 3.82399745364545 5.1451e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1890  
   data-arc span      32359 days (88.59 yr)  
   first obs. used      1932-11-22  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:35:59  

Additional Information
 Jupiter MOID = 2.67333 au 
 T_jup = 3.584 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.158547990446405E-16 -4.825977654077311E-16 -9.079386066450575E-14 -3.554626111925922E-14 2.230742552486739E-15 9.351301331239013E-16
q -4.825977654077311E-16 1.109747493197867E-15 2.172156003584902E-13 8.040174741345658E-14 -5.511602400930836E-16 -2.132169053381379E-15
tp -9.079386066450575E-14 2.172156003584902E-13 8.358355817404019E-11 -3.956262190050771E-12 3.228842025945559E-11 -9.663574922398799E-13
node -3.554626111925922E-14 8.040174741345658E-14 -3.956262190050771E-12 6.357972550069566E-11 -6.251170245580597E-11 2.613108413220811E-12
peri 2.230742552486739E-15 -5.511602400930836E-16 3.228842025945559E-11 -6.251170245580597E-11 7.152350239946334E-11 -2.935444885347371E-12
i 9.351301331239013E-16 -2.132169053381379E-15 -9.663574922398799E-13 2.613108413220811E-12 -2.935444885347371E-12 2.647222017348862E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.29   n/a E2021B10  
diameter diameter 3.934 km 0.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.261   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4682 Bykov (1973 SO4)          Discovered 1973-Sep-27 by Chernykh, L. I. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1973 SO4 = 1932 WK = 1973 UG4 = 1987 YG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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