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JPL Small-Body Database Browser
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15735 Andakerkhoven (1990 WF2)
Classification: Main-belt Asteroid          SPK-ID: 2015735
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07454097844734529 4.0129e-08  
a 3.177031706173057 1.9217e-08 au
q 2.940212654236678 1.2814e-07 au
i 10.45901692303639 4.1348e-06 deg
node 95.45835560279409 2.4993e-05 deg
peri 257.6247908595294 3.7387e-05 deg
M 132.4177898805092 2.8368e-05 deg
tp 2458239.692851327274
(2018-May-01.19285133)
0.00016235 TDB
period 2068.382003425175
5.66
1.8766e-05
5.138e-08
d
yr
n .1740490873561322 1.5791e-09 deg/d
Q 3.413850758109435 2.0649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1672  
   data-arc span      11506 days (31.50 yr)  
   first obs. used      1988-08-04  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49298  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:26:44  

Additional Information
 Earth MOID = 1.95725 au 
 Jupiter MOID = 1.94989 au 
 T_jup = 3.170 
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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 13.1   n/a MPO502290  
diameter diameter 11.773 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 22.5355 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.053   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15735 Andakerkhoven           Discovered 1990 Nov. 18 by E. W. Elst at the European Southern Observatory.
Melisande T. M. "Anda" Kerkhoven (1919-1945), a medical student at Groningen University, was active in the Dutch Resistance during World War II. Providing help and shelter for allied aircraft pilots, she was finally captured and shot by Dutch Nazi collaborators.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080618/MPCPages.arcLast Updated: 2008-06-20

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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
1906-Aug-05 04:12 00:03 Jupiter 1.93611810534985 1.93611768737777 1.93611852332215 4.09270787294309 3.9843804851577 2417427.674686440 2.80192706331654 99.3248000323648 17.590148057667 86.5432153099049 4097918.76809668 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:27:02 2020-Feb-22 21:27
2014-Aug-09 00:54 < 00:01 Jupiter 1.97791087181149 1.97791048929076 1.97791125433234 3.74406453226863 3.62788329963807 2456878.537639211 0.198210336928948 45.9175549545293 14.334661819246 -78.2254443013186 3921728.95499847 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:27:02 2020-Feb-22 21:27
2025-Jun-05 08:11 < 00:01 Jupiter 1.94139862791225 1.94139826718544 1.94139898863905 4.11587230669996 4.0084678922965 2460831.840667184 0.346718106645756 52.7213967264605 15.8371527848392 -86.7573998975616 4174543.62100848 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:27:02 2020-Feb-22 21:27
2144-Apr-07 21:04 00:03 Jupiter 1.9535046787051 1.95350431662303 1.95350504078751 4.10891508900107 4.00199959130449 2504237.377485853 3.32566913405687 164.581110177095 15.4713460417433 -87.5978248509463 4199252.84567493 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:27:02 2020-Feb-22 21:27
2155-Jan-29 09:47 00:04 Jupiter 1.99680379551979 1.99680310070224 1.99680449033733 4.36910707260145 4.27091539377304 2508185.907861752 3.7083022133906 59.2156681877683 31.8576354847595 -79.8610164092367 3594881.66214825 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 21:27:02 2020-Feb-22 21:27

Alternate Designations
 1990 WF2 = 1988 PD3 = 1999 JR82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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