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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497448857434671 2.9483e-08  
a 3.0987988508251 1.4233e-08 au
q 2.634769570966308 9.2625e-08 au
i 3.014050940051438 3.9041e-06 deg
node 153.8403184772114 6.0843e-05 deg
peri 137.1865001047723 6.2213e-05 deg
M 264.4903779185847 1.4353e-05 deg
tp 2459729.107270417768
(2022-May-29.60727042)
8.0438e-05 TDB
period 1992.454929705201
5.46
1.3728e-05
3.759e-08
d
yr
n .1806816277913322 1.2449e-09 deg/d
Q 3.562828130683891 1.6365e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2631  
   data-arc span      15156 days (41.49 yr)  
   first obs. used      1979-09-24  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46812  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:49:54  

Additional Information
 Earth MOID = 1.61764 au 
 Jupiter MOID = 1.6259 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 12.66   n/a MPCxxxxx  
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 1.8741698805664 1.87416897722357 1.87417078390923 2.21693632029984 2.00272708819667 2431057.368799744 1.52453979643584 74.0776697263844 7.81389010275213 -82.0724401057451 2190559.01396031 T 39 CATAB v2.0g-lin.ifort 2021-May-04 00:50:04 2021-May-04 00:50
1953-Sep-25 12:44 00:01 Jupiter 1.60605035419758 1.60605001423691 1.60605069415779 1.5848778294853 1.20708253724236 2434646.030231625 1.33481588197596 87.7012988224692 52.3802051602505 24.6344602636016 2121378.2262415 T 39 CATAB v2.0g-lin.ifort 2021-May-04 00:50:04 2021-May-04 00:50
2014-Feb-28 00:48 < 00:01 Jupiter 1.66062029676039 1.66061998899804 1.66062060452255 1.54250108490474 1.1658395006846 2456716.533467218 0.17247543777294 71.5085952045697 55.7912634071116 -53.70301987803 2869168.4493005 T 39 CATAB v2.0g-lin.ifort 2021-May-04 00:50:04 2021-May-04 00:50
2023-Dec-19 23:30 < 00:01 Jupiter 1.76240534609069 1.76240497649695 1.76240571568434 2.48531386156124 2.28376291958989 2460298.479490154 0.284428743860577 35.2478603461045 6.95113942979139 89.1723380897816 3165067.40794417 T 39 CATAB v2.0g-lin.ifort 2021-May-04 00:50:04 2021-May-04 00:50
2074-Jul-28 19:43 00:01 Jupiter 1.89276537734126 1.8927646924766 1.89276606220591 2.27254455021954 2.06626430089246 2478782.321328816 1.2481836448981 64.2890363499075 7.10209985338196 -83.2101780733893 2400587.02989386 T 39 CATAB v2.0g-lin.ifort 2021-May-04 00:50:04 2021-May-04 00:50
2084-May-27 16:26 00:02 Jupiter 1.6149847268665 1.61498440366582 1.61498505006681 1.56777534293785 1.18699844973951 2482373.184605246 1.53827835403761 80.121334226158 56.5251388117821 29.5042547159868 2341996.38553399 T 39 CATAB v2.0g-lin.ifort 2021-May-04 00:50:04 2021-May-04 00:50
2144-Nov-01 00:29 00:03 Jupiter 1.67854557011844 1.6785446981854 1.6785464420509 1.58758886286384 1.22931059503774 2504444.519821001 2.81636908089534 121.158802071021 64.5817702773746 55.1149336543732 1706668.9413486 T 39 CATAB v2.0g-lin.ifort 2021-May-04 00:50:04 2021-May-04 00:50
2154-Aug-24 11:04 00:03 Jupiter 1.75672941653518 1.75672818242899 1.75673065064346 2.40571264451873 2.19616387578239 2508027.960828356 3.07405589028122 137.328408160205 6.26124942100911 -88.518029500609 2456302.0420965 T 39 CATAB v2.0g-lin.ifort 2021-May-04 00:50:04 2021-May-04 00:50

Alternate Designations
 1984 OG = 1979 SA9 = 1999 GL5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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