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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497448847099396 2.9663e-08  
a 3.098798850399039 1.4315e-08 au
q 2.634769573806742 9.3042e-08 au
i 3.014050980242675 3.9162e-06 deg
node 153.8403179257226 6.0997e-05 deg
peri 137.1865004610556 6.2365e-05 deg
M 264.4903782830909 1.4399e-05 deg
tp 2459729.107268291354
(2022-May-29.60726829)
8.0723e-05 TDB
period 1992.45492929428
5.46
1.3806e-05
3.78e-08
d
yr
n .1806816278285957 1.252e-09 deg/d
Q 3.562828126991337 1.6459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2611  
   data-arc span      15148 days (41.47 yr)  
   first obs. used      1979-09-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46977  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:28:36  

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 12.65   n/a E2021B10  
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 1.87416989310311 1.87416898343789 1.87417080276843 2.21693633901379 2.00272711042177 2431057.368807451 1.53071112668739 74.2686412238159 7.83936277741119 -82.0670983028392 2177434.93780197 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 22:29:09 2021-Apr-12 22:29
1953-Sep-25 12:44 00:01 Jupiter 1.60605035451939 1.60605001449774 1.60605069454058 1.58487777372649 1.20708246411959 2434646.030254525 1.34060509987645 87.8315257425639 52.6297872858204 24.9116352965337 2121107.55060058 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 22:29:09 2021-Apr-12 22:29
2014-Feb-28 00:48 < 00:01 Jupiter 1.66062030053022 1.66061999078019 1.66062061028007 1.54250109829922 1.16583951939979 2456716.533465655 0.172547402947469 71.8530567724043 56.0355610109932 -53.3345033407426 2851013.13224099 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 22:29:09 2021-Apr-12 22:29
2023-Dec-19 23:30 < 00:01 Jupiter 1.76240534631407 1.76240497668316 1.76240571594488 2.48531392660704 2.2837629904029 2460298.479482163 0.285297594203674 35.4257457098678 6.95877785011204 89.1210978593472 3164350.83761101 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 22:29:09 2021-Apr-12 22:29
2074-Jul-28 19:43 00:01 Jupiter 1.89276537501982 1.89276468951822 1.89276606052141 2.27254442722281 2.06626416535103 2478782.321304879 1.25492668125629 64.5660828772578 7.13524378458159 -83.2019131683284 2398701.73741238 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 22:29:09 2021-Apr-12 22:29
2084-May-27 16:26 00:02 Jupiter 1.61498473029352 1.61498440542151 1.61498505516517 1.56777535125092 1.18699846165694 2482373.184598855 1.54580953625793 80.7374288489315 56.830129406804 29.3411081670381 2325358.29354805 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 22:29:09 2021-Apr-12 22:29
2144-Nov-01 00:29 00:03 Jupiter 1.67854556550065 1.67854469236835 1.67854643863247 1.58758889248609 1.22931063216401 2504444.519811025 2.83010719281745 121.419183514984 64.865622845547 55.3376115105352 1703875.78234736 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 22:29:09 2021-Apr-12 22:29
2154-Aug-24 11:04 00:03 Jupiter 1.75672942812051 1.75672818913782 1.75673066710529 2.40571266128414 2.19616389559535 2508027.960812438 3.08849717916014 137.93528898646 6.28705206322554 -88.5324799326756 2449409.76403475 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 22:29:09 2021-Apr-12 22:29

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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