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11020 Orwell (1984 OG)
Classification: Main-belt Asteroid          SPK-ID: 2011020
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496800552537483 3.119e-08  
a 3.099495224930616 1.4999e-08 au
q 2.635562608404272 9.6707e-08 au
i 3.013674829986195 3.9962e-06 deg
node 153.8396459653645 6.2852e-05 deg
peri 137.097965900373 6.4205e-05 deg
M 228.4583668117232 1.4675e-05 deg
tp 2459728.775354320087
(2022-May-29.27535432)
8.2894e-05 TDB
period 1993.126595744572
5.46
1.4468e-05
3.961e-08
d
yr
n .1806207396803688 1.3111e-09 deg/d
Q 3.563427841456959 1.7244e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2399  
   data-arc span      14827 days (40.59 yr)  
   first obs. used      1979-09-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47277  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:28:17  

Additional Information
 Earth MOID = 1.62038 au 
 Jupiter MOID = 1.62564 au 
 T_jup = 3.203 
[ 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 12.6   n/a MPO337351  
diameter diameter 14.466 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.089   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11020 Orwell           Discovered 1984 July 31 by A. Mrkos at Klet.
British writer George Orwell (Eric Blair, 1903-1950) was renowned for his novels Animal Farm and 1984, the latter a brilliant examination of the dangers of totalitarian rule. The name was suggested by J. Ticha and endorsed by B. G. Marsden, who made the identification involving this aptly designated object.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/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
1943-Nov-28 20:51 00:02 Jupiter 1.87416996319434 1.87416900418648 1.8741709222022 2.21693639719167 2.00272718201518 2431057.368924160 1.58160678938911 75.9584241782705 8.09804049789173 -82.0846228465073 2079513.5015194 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:28:28 2020-May-20 03:28
1953-Sep-25 12:44 00:01 Jupiter 1.60605033303036 1.6060499918554 1.60605067420495 1.58487779095311 1.20708247847821 2434646.030291957 1.38819568971816 88.8524477962981 54.4502019073698 26.9697279498341 2117193.78153479 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:28:28 2020-May-20 03:28
2014-Feb-28 00:48 < 00:01 Jupiter 1.66062028624788 1.66061995978242 1.66062061271297 1.54250097052684 1.16583934416671 2456716.533479182 0.174395348194523 74.5016523323404 58.0289382742496 -49.7693545022705 2705742.89848082 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:28:28 2020-May-20 03:28
2023-Dec-19 23:31 < 00:01 Jupiter 1.76240530875246 1.76240493611523 1.7624056813896 2.48531374524338 2.28376278738549 2460298.479520650 0.294419770271927 36.7642742501509 7.06216907238167 88.766671368097 3136586.0552239 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:28:28 2020-May-20 03:28
2074-Jul-28 19:43 00:01 Jupiter 1.89276557934311 1.89276488460538 1.89276627408095 2.27254495160513 2.06626476426669 2478782.321602055 1.31343131233057 67.1656561945424 7.43394698238992 -83.156207429908 2375665.34502015 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:28:28 2020-May-20 03:28
2084-May-27 16:26 00:02 Jupiter 1.61498462988095 1.61498428839119 1.61498497137026 1.56777485275886 1.18699777334038 2482373.184974292 1.61106184217356 86.1764613696792 59.1670433154915 27.2848171382359 2180108.72113175 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:28:28 2020-May-20 03:28
2144-Nov-01 00:30 00:03 Jupiter 1.6785459569385 1.67854507188837 1.67854684198815 1.58758980617757 1.22931190560566 2504444.520788922 2.94749172060169 123.830988563592 66.9542275879973 57.0171856783454 1683185.93299444 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:28:28 2020-May-20 03:28
2154-Aug-24 11:05 00:03 Jupiter 1.75672858881888 1.75672730400844 1.75672987363152 2.40570812108949 2.1961588160892 2508027.962044063 3.21161146392862 143.091737205598 6.50493188205687 -88.624898681734 2392825.85852952 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:28:28 2020-May-20 03:28

Alternate Designations
 1984 OG = 1979 SA9 = 1999 GL5 
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