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11468 Shantanunaidu (1981 EU42)
Classification: Main-belt Asteroid          SPK-ID: 2011468
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1661079235915301 3.5156e-08  
a 3.08157175215911 1.7976e-08 au
q 2.569698267009647 1.1456e-07 au
i .7882278208788773 3.9674e-06 deg
node 206.2829776209654 0.00027578 deg
peri 153.1861297490694 0.00027605 deg
M 309.248764579639 1.3907e-05 deg
tp 2459479.048594427580
(2021-Sep-21.54859443)
7.7645e-05 TDB
period 1975.863112756823
5.41
1.7289e-05
4.733e-08
d
yr
n .1821988566291467 1.5943e-09 deg/d
Q 3.593445237308574 2.0962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1188  
   data-arc span      14427 days (39.50 yr)  
   first obs. used      1981-03-11  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:47:32  

Additional Information
 Earth MOID = 1.56466 au 
 Jupiter MOID = 1.86228 au 
 T_jup = 3.206 
[ 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 14.27   n/a E2021B10  
diameter diameter 6.472 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11468 Shantanunaidu           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring.
Shantanu Naidu (b. 1985) is a postdoctoral researcher at the Jet Propulsion Laboratory who combines dynamical theory and radar observations for asteroid physical studies, including spin-orbit coupling interactions in binary asteroid systems.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

[ 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
1921-Jul-01 08:56 00:03 Jupiter 1.87395183921853 1.87395151162646 1.87395216681049 2.02610204178518 1.78915998562331 2422871.872470339 2.57836185055197 136.050332713726 8.59547322797122 -86.7585677697724 3310755.59715418 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47
1981-Apr-06 17:04 < 00:01 Jupiter 1.889768848218 1.8897685081044 1.88976918833149 2.06728739115358 1.83772887129682 2444701.210778479 0.931815616738526 65.4666325315397 6.84435434993618 -88.460314184826 3224187.41386035 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47
1991-Jan-28 05:13 < 00:01 Jupiter 1.96189595086712 1.96189556859504 1.96189633313921 2.72627350624588 2.56302434689251 2448284.717032419 0.619345737163235 43.2031727855056 8.49101164251509 86.3404571793598 3137605.03640135 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47
2041-Jan-10 14:16 < 00:01 Jupiter 1.91683956053664 1.91683919369854 1.91683992737464 2.18307929838005 1.9702957562467 2466530.094493471 0.743076502187586 54.2709775247678 4.87431806152243 88.9115227817441 2943182.27497013 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47
2050-Nov-03 03:56 00:01 Jupiter 1.92593151215292 1.92593116954891 1.92593185475694 2.43927004076787 2.25176388262123 2470113.664004164 1.05921437368058 55.5529787806345 4.99398749989463 87.7526850243867 3637299.20658077 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47
2100-Oct-17 04:41 00:02 Jupiter 1.95333857704397 1.95333798988534 1.95333916420304 2.36727019338301 2.17639884966067 2488358.695234084 2.36474026170692 93.2943121608793 5.23541569220055 -88.9613129894682 2591527.58832878 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47
2110-Aug-11 02:11 00:03 Jupiter 1.89872807625691 1.89872766933411 1.89872848318089 2.22512748556435 2.014694124468 2491943.591077488 2.70723273803153 126.518236230216 5.18048748848846 -88.0306914002257 3527896.90908326 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47
2160-Jul-22 13:09 00:04 Jupiter 1.99713589497611 1.99713492022227 1.99713686973165 2.61416833970343 2.44655653458488 2510187.048171433 3.97600540630082 126.709488913148 8.96310809554624 -83.8757271369928 2473386.70850412 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47
2170-May-18 18:52 00:04 Jupiter 1.88219687387789 1.88219649960536 1.8821972481533 2.09004605358412 1.86232555300134 2513774.286146956 4.36230205514136 216.979870231039 6.55112732493166 -87.5359650200788 3480836.78154383 T 22 CATAB v2.0f-lin.ifort 2021-Apr-12 22:47:37 2021-Apr-12 22:47

Alternate Designations
 1981 EU42 = 1995 YB24 = 1998 LF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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