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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1956515025075192 2.9721e-08  
a 2.270734919117537 7.6367e-09 au
q 1.826462220395901 6.7759e-08 au
i 3.821683473143351 4.1435e-06 deg
node 321.2711006153618 5.0059e-05 deg
peri 88.77957392124304 5.1251e-05 deg
M 210.2880134848631 1.2098e-05 deg
tp 2459520.259166044456
(2021-Nov-01.75916604)
4.3387e-05 TDB
period 1249.821768660359
3.42
6.3049e-06
1.726e-08
d
yr
n .288041070356673 1.4531e-09 deg/d
Q 2.715007617839174 9.1308e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1838  
   data-arc span      32070 days (87.80 yr)  
   first obs. used      1932-11-22  
   last obs. used      2020-09-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:49:34  

Additional Information
 Earth MOID = .841695 au 
 Jupiter MOID = 2.67012 au 
 T_jup = 3.584 
[ 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 14.3   n/a MPO365303  
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

[ 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
1929-May-14 18:26 00:01 Iris 0.00718689378886458 0.00718640951137944 0.00718738322533007 2.14516769029818 2.14516731741688 2425746.268240870 1.06008758795011 442.468125140947 17.630223174963 87.8443753832224 60820.5809792009 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:49:38 2020-Nov-13 03:49
2009-Aug-19 06:41 00:02 Amphi 0.0386493410309501 0.0386487683408306 0.0386499137278101 1.66920364456002 1.669203555451 2455062.778437939 1.49214740124449 56.5429421628381 24.3311255800898 -73.128861008998 228664.178009916 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:49:38 2020-Nov-13 03:49
2013-Feb-21 10:36 < 00:01 Thisb 0.0433334003390206 0.0433322414997185 0.0433345591784517 4.39201797785016 4.39201794202502 2456344.941593371 0.414173225719487 58.2044118101937 49.1806756031484 -13.3001682417763 112497.434776675 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:49:38 2020-Nov-13 03:49
2132-Dec-13 10:02 00:02 Thisb 0.0132218939781332 0.0132205607278468 0.0132232297054431 4.15552821813859 4.15552809404342 2500103.917827131 2.44026590580958 443.260263880944 50.4955732805397 -84.3573206641012 38961.6323253434 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:49:38 2020-Nov-13 03:49

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