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7271 Doroguntsov (1979 SR2)
Classification: Main-belt Asteroid          SPK-ID: 2007271
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 .2745191494317464 4.3464e-08  
a 3.102395256807236 1.5009e-08 au
q 2.250728349707429 1.3632e-07 au
i 2.996895939744576 4.9557e-06 deg
node 318.5967307673458 8.0475e-05 deg
peri 59.66195510226469 8.0926e-05 deg
M 134.024848912234 9.1494e-06 deg
tp 2458257.434763062322
(2018-May-18.93476306)
4.7013e-05 TDB
period 1995.924542863975
5.46
1.4484e-05
3.966e-08
d
yr
n .1803675400891818 1.3089e-09 deg/d
Q 3.954062163907043 1.913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1628  
   data-arc span      14826 days (40.59 yr)  
   first obs. used      1979-09-18  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54586  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:44:19  

Additional Information
 Earth MOID = 1.25457 au 
 Jupiter MOID = 1.54013 au 
 T_jup = 3.160 
[ 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 13.5   n/a MPO502222  
diameter diameter 7.767 km 1.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.02 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.185   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7271 Doroguntsov           Discovered 1979 Sept. 22 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Sergej Ivanovich Doroguntsov (b. 1929), corresponding member of the National Academy of Sciences of Ukraine, is prominent in the study of economics and ecology, head of a faculty at Kiev National Economic University and president of the Ukrainian Ecological Academy of Sciences.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

[ 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
1912-May-11 17:35 00:03 Jupiter 1.95484612609182 1.9548442961979 1.95484795598329 2.22529342374332 2.02122324762454 2419534.232853192 2.73184688886019 87.1573418270587 12.933991302317 80.6607598353631 828129.649412907 T 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
1922-Apr-28 20:47 00:02 Jupiter 1.54058535437732 1.54058485996321 1.54058584879405 0.598664024551621 n/a 2423173.366121782 2.32073026207235 290.898281731093 23.1422700538316 88.3199187761766 9951406.67652142 F 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
1932-May-01 10:48 00:02 Jupiter 1.86965186177199 1.86965042273826 1.86965330080433 2.05400395211758 1.82012557729694 2426828.949982421 2.10997802009482 109.709428968626 18.3177154203245 -74.7352531813207 1104381.76405624 T 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
1983-Oct-07 23:41 < 00:01 Jupiter 1.99952529101902 1.99952441317072 1.99952616886697 2.52797776737488 2.35445279931553 2445615.487126790 0.904376231553743 57.1175471699758 17.3421048273777 -89.3045648521815 1427663.51728213 T 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
1993-Sep-23 07:36 < 00:01 Jupiter 1.55029523965289 1.55029478870134 1.55029569060448 0.528967342454427 n/a 2449253.816554664 0.60406776521924 72.1833066818522 22.0718843385062 -86.4115513536118 10485603.1473182 F 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
2003-Sep-26 16:49 < 00:01 Jupiter 1.83291593302487 1.83291533066981 1.83291653537983 1.84956754980372 1.58008390135799 2452909.200864386 0.367591181902605 122.888754141003 26.9858754756831 -68.8115155476345 2149823.05924132 T 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
2065-Feb-20 13:02 00:01 Jupiter 1.56426044316696 1.56425999982708 1.56426088650684 0.518317538951328 n/a 2475337.042879152 1.2145044072396 59.7374574070214 21.9727573553089 -87.4848478150068 10637873.7471106 F 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
2075-Feb-25 13:05 00:02 Jupiter 1.79245005230028 1.79244914805267 1.79245095655502 1.62624320484835 1.3036743034649 2478994.045311412 1.53740402392172 293.948561840144 40.3221656481975 -64.3752079201816 3145932.89387809 T 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
2136-Jul-25 10:56 00:03 Jupiter 1.58199928771489 1.58199849367459 1.58200008175642 0.583523760582912 n/a 2501423.955742144 2.99597978919657 105.897850647257 28.1133860783575 74.1512769262235 8118601.172178 F 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44
2146-Jul-30 08:59 00:03 Jupiter 1.75016793888775 1.75016620751318 1.75016967044986 1.39775696364539 0.992870427003204 2505080.874584676 3.35238108814012 1295.04428791925 89.6559162029122 -63.0584967926855 4323056.60259509 T 29 CATAB v2.0f-lin.ifort 2020-May-20 02:44:33 2020-May-20 02:44

Alternate Designations
 1979 SR2 = 1990 SU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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