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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .074964781607797 3.9228e-08  
a 3.175899915174449 1.7658e-08 au
q 2.937819271625176 1.2482e-07 au
i 10.45841021698848 3.5271e-06 deg
node 95.44964633659681 2.3922e-05 deg
peri 257.7277855840935 3.405e-05 deg
M 201.2392155033224 2.5815e-05 deg
tp 2460308.173589667332
(2023-Dec-29.67358967)
0.00015059 TDB
period 2067.276836157911
5.66
1.7241e-05
4.72e-08
d
yr
n .1741421340883737 1.4523e-09 deg/d
Q 3.413980558723723 1.8982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2067  
   data-arc span      11996 days (32.84 yr)  
   first obs. used      1988-08-04  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47461  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:55:00  

Additional Information
 Earth MOID = 1.95414 au 
 Jupiter MOID = 1.94973 au 
 T_jup = 3.171 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457342.5 (2015-Nov-16.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0729529223052599 3.9121e-08  
q 2.945387298032423 1.2401e-07 au
tp 2458238.989918576468
(2018-Apr-30.48991858)
0.00014994 TDB
node 95.49244766651374 2.392e-05 deg
peri 257.3607378891061 3.4566e-05 deg
i 10.45704106122934 3.5266e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2067  
   data-arc span      11996 days (32.84 yr)  
   first obs. used      1988-08-04  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47461  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:55:00  

Additional Information
 Jupiter MOID = 1.94973 au 
 T_jup = 3.171 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.530423773766042E-15 -4.809703879488498E-15 8.155039898822497E-13 -2.461994385405575E-15 1.129891972998246E-13 7.647120205870175E-16
q -4.809703879488498E-15 1.53793670396255E-14 -2.060532788231154E-12 2.273633599176405E-15 -2.881285178861862E-13 -1.46833755357272E-15
tp 8.155039898822497E-13 -2.060532788231154E-12 2.248335431074875E-8 4.612913005507431E-12 3.769334999460947E-9 -4.112586569121886E-13
node -2.461994385405575E-15 2.273633599176405E-15 4.612913005507431E-12 5.72161445144667E-10 -5.615246977519911E-10 2.352569233159243E-12
peri 1.129891972998246E-13 -2.881285178861862E-13 3.769334999460947E-9 -5.615246977519911E-10 1.194787807100377E-9 -2.394854197970909E-12
i 7.647120205870175E-16 -1.46833755357272E-15 -4.112586569121886E-13 2.352569233159243E-12 -2.394854197970909E-12 1.243706477834649E-11

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 13.11   n/a MPO636301  
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 21.8725 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

[ 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
1906-Aug-05 04:12 00:03 Jupiter 1.93611813196041 1.93611774225511 1.93611852166605 4.09270820285973 3.9843808261598 2417427.674824029 2.66396059670222 92.3687249353436 15.367254446734 85.051739758108 4760766.99276081 T 40 CATAB v2.0g-lin.ifort 2021-Jul-08 03:55:08 2021-Jul-08 03:55
2014-Aug-09 00:54 < 00:01 Jupiter 1.97791088045072 1.97791053806242 1.97791122283913 3.74406513989071 3.62788392788665 2456878.537619454 0.176482329238942 43.4064198715307 12.4309222701117 -77.4819174645479 4487832.62534323 T 40 CATAB v2.0g-lin.ifort 2021-Jul-08 03:55:08 2021-Jul-08 03:55
2025-Jun-05 08:11 < 00:01 Jupiter 1.94139864474497 1.94139833781163 1.94139895167832 4.11587268749069 4.00846828483528 2460831.840661506 0.293967828096631 50.2442263558727 13.425283117373 -86.8224653471457 4895930.5335228 T 40 CATAB v2.0g-lin.ifort 2021-Jul-08 03:55:08 2021-Jul-08 03:55
2144-Apr-07 21:03 00:03 Jupiter 1.95350465788102 1.95350433841149 1.95350497735122 4.10891556924091 4.00200008381778 2504237.377376182 3.09551797359695 154.887355651063 12.9759571425637 -86.8983375426021 4991082.71919702 T 40 CATAB v2.0g-lin.ifort 2021-Jul-08 03:55:08 2021-Jul-08 03:55
2155-Jan-29 09:47 00:03 Jupiter 1.99680377927929 1.99680317121079 1.9968043873478 4.3691068788886 4.27091519534746 2508185.907767701 3.45602096248609 52.1451677215344 28.3559255457034 -81.6820428260182 4215469.45605089 T 40 CATAB v2.0g-lin.ifort 2021-Jul-08 03:55:08 2021-Jul-08 03:55

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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