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18670 Shantanugaur (1998 FM64)
Classification: Main-belt Asteroid          SPK-ID: 2018670
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1431378069362701 3.2139e-08  
a 3.106502012544175 1.501e-08 au
q 2.661844127225492 1.0384e-07 au
i 1.219316256539902 3.678e-06 deg
node 155.9310946964366 0.00016573 deg
peri 108.0874622249326 0.00016627 deg
M 27.66744167288295 1.3055e-05 deg
tp 2459242.800523561073
(2021-Jan-28.30052356)
7.2539e-05 TDB
period 1999.88897319136
5.48
1.4494e-05
3.968e-08
d
yr
n .1800099929675213 1.3046e-09 deg/d
Q 3.551159897862858 1.7158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1559  
   data-arc span      14331 days (39.24 yr)  
   first obs. used      1982-05-15  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5044  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:11:53  

Additional Information
 Earth MOID = 1.64645 au 
 Jupiter MOID = 1.52314 au 
 T_jup = 3.204 
[ 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 14.19   n/a MPO636345  
diameter diameter 7.262 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18670 Shantanugaur           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Shantanu Kadir Gaur (b. 1986) was awarded third place in the 2003 Intel International Science and Engineering Fair for his biochemistry project. He attends the Bethel Park High School, Bethel Park, Pennsylvania, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040830/MPCPages.arcLast Updated: 2004-09-06

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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
1931-May-13 22:20 00:02 Jupiter 1.86273093888834 1.86272973555269 1.86273214222347 2.33187738456365 2.12795924011846 2426475.430453815 1.9396429060817 57.6321751296868 16.7266530064034 -73.0786931242122 1596558.79860656 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12
1941-Apr-12 08:56 00:02 Jupiter 1.50877691850158 1.5087765943826 1.50877724261997 1.38263281824353 0.888189135459311 2430096.872426380 1.72202657034185 215.546484809927 96.0092811840909 8.23341031498421 1981098.73262043 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12
1951-Mar-11 23:46 00:01 Jupiter 1.92815438098778 1.92815353814941 1.92815522382669 3.35354540128402 3.21988867078176 2433717.490499518 1.3956958905717 74.1448616776704 14.8982833544147 -68.0819978981802 3029099.94667062 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12
2002-Apr-22 15:25 < 00:01 Jupiter 1.77528958151016 1.77528916353999 1.77528999948012 2.0161594596069 1.76370719879297 2452387.142102976 0.380531362907051 41.4502681392306 9.64873050851893 89.180076921416 2746560.47031984 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12
2012-Mar-20 18:50 < 00:01 Jupiter 1.53455815757532 1.53455783454879 1.5345584806015 1.50867181608467 1.08266361131704 2456007.284525728 0.216900565324708 99.2551331072694 67.2946771527501 21.667379561434 2399159.65143494 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12
2073-Mar-29 19:45 00:01 Jupiter 1.69514292252034 1.69514215279489 1.69514369224484 1.75231303314561 1.43918332407213 2478296.322754687 1.32592399956869 47.1971880360917 42.3319050734761 88.4852106884565 1495250.49323917 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12
2083-Feb-23 15:01 00:02 Jupiter 1.58401472874912 1.58401409121942 1.58401536627882 1.72422465351868 1.37966942872697 2481914.125512175 1.6066650867296 104.951670677647 35.9868407321706 57.9506193846703 2182418.2814494 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12
2144-Mar-04 20:10 00:03 Jupiter 1.62680719780419 1.62680595479409 1.62680844081106 1.55094040476433 1.16794048721106 2504203.340078538 2.93156182564353 141.320289864128 57.6502169534226 -8.46617212119347 1006109.86335711 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12
2154-Jan-28 11:56 00:03 Jupiter 1.65029623431461 1.65029480272699 1.65029766590486 2.01934913028252 1.746785977867 2507819.997094887 3.21921616344464 171.566675316275 12.6797734554936 78.9395718832522 2336845.59964403 T 31 CATAB v2.0g-lin.ifort 2021-Aug-24 22:11:59 2021-Aug-24 22:12

Alternate Designations
 1998 FM64 = 1982 JU1 = 1995 YV16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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