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20818 Karmadiraju (2000 TQ54)
Classification: Main-belt Asteroid          SPK-ID: 2020818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07998611533828588 4.932e-08  
a 3.123892416068671 1.9234e-08 au
q 2.874024396972605 1.5598e-07 au
i 1.470054784452405 5.1899e-06 deg
node 48.84847866792418 0.00015872 deg
peri 171.4890601464839 0.00016133 deg
M 10.34879452541144 2.6756e-05 deg
tp 2458942.526463580014
(2020-Apr-03.02646358)
0.0001501 TDB
period 2016.705719680436
5.52
1.8626e-05
5.1e-08
d
yr
n .1785089398452467 1.6486e-09 deg/d
Q 3.373760435164736 2.0773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1203  
   data-arc span      10336 days (28.30 yr)  
   first obs. used      1992-04-03  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54002  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:00:29  

Additional Information
 Earth MOID = 1.86583 au 
 Jupiter MOID = 1.59646 au 
 T_jup = 3.210 
[ 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 MPO435893  
diameter diameter 7.645 km 0.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20818 Karmadiraju           Discovered 2000 Oct. 1 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kartik Madiraju (b. 1989) was awarded second place in the 2004 Intel International Science and Engineering Fair for his environmental science project. He attends the Centennial Regional High School, Greenfield Park, Quebec, Canada.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041226/MPCPages.arcLast Updated: 2004-12-25

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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-Aug-27 04:06 00:02 Jupiter 1.70967486346932 1.70967393331316 1.7096757936249 2.27839134420456 2.04944116971762 2425850.670496917 2.31161785107618 48.3743289789126 15.8237993945255 87.2275010103672 1508112.58936068 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
1939-Oct-07 23:37 00:02 Jupiter 1.61169561881553 1.61169505731261 1.61169618031992 2.03614005768901 1.75919624914569 2429544.484011834 2.01550394868265 135.507819773389 16.1691744884803 87.9275696323062 2228135.44570579 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
1949-Dec-01 09:32 00:02 Jupiter 1.9901240315343 1.99012325107755 1.99012481199105 3.52276882184037 3.39980504094979 2433251.897261003 1.62749963127725 56.7146324385944 27.157602467566 -70.6375012817564 2516485.9547063 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2001-Oct-12 00:22 < 00:01 Jupiter 1.93033334087708 1.93033289040824 1.93033379134581 3.05115869230928 2.90378673453714 2452194.515619849 0.380714705662956 42.4024427077051 14.7902676219198 -86.863363771715 3078152.87637453 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2011-Dec-01 20:31 < 00:01 Jupiter 1.59057032801784 1.59056984411504 1.59057081192038 1.9041682019852 1.60025043245515 2455897.354571247 0.262961766637842 76.3879988012948 27.1644062066918 -89.0695252878431 1948828.86117823 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2022-Jan-12 16:07 < 00:01 Jupiter 1.76142963767374 1.76142912672482 1.76143014862256 2.62361234705212 2.43343324970382 2459592.171348836 0.418345868175218 53.5044310540625 11.2143568094386 -84.4440095768989 2641478.13128107 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2084-Jan-25 20:27 00:02 Jupiter 1.73185719919805 1.73185616452793 1.73185823386738 2.32167324438486 2.10047612682147 2482250.352045561 1.99456499180124 44.0593914862273 15.1654363205096 89.812153522709 1276250.92857642 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2094-Mar-07 23:05 00:02 Jupiter 1.60877500546807 1.60877433873285 1.60877567220594 2.02367613911401 1.74420814085056 2485944.461709972 2.33469481523779 156.461977895518 17.0277671198423 87.9617029343837 2171480.7676923 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2104-Apr-29 23:17 00:02 Jupiter 1.97837604818329 1.97837451308356 1.97837758328312 3.50851697722575 3.38428881427738 2489649.470480460 2.46258150043129 89.0353566725409 33.236465453586 -50.4323590876205 1711610.65913632 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2156-Mar-13 17:27 00:04 Jupiter 1.95514351056217 1.95514139288035 1.95514562824309 3.10369529036309 2.96082232859635 2508595.227275840 3.79181147211649 85.3771227136835 40.2131540786782 -27.6644968807058 916318.905226264 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2166-May-03 22:04 00:04 Jupiter 1.60327335909127 1.60327251184012 1.60327420634215 1.92236029884686 1.62445457062338 2512298.419603319 4.32419761849094 104.994809614483 24.1582114466566 -88.1951605037178 1598754.85135082 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00
2176-Jun-14 12:13 00:05 Jupiter 1.75149948107732 1.75149735492933 1.75150160723397 2.59987788033943 2.40669233586656 2515993.008756211 4.58046663242734 238.868416280814 11.3811384624305 -77.4015894204179 2365793.58519256 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:00:32 2020-Nov-13 02:00

Alternate Designations
 2000 TQ54 = 1992 GF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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