Magnetic properties experiments and the Surface Stereo Imager calibration target onboard the Mars Phoenix 2007 Lander

Design, calibration, and science goals

K. Leer, Pernille Bertelsen, C. S. Binau, Lone Djernis Olsen, Line Drube, Thea Vilstrup Falkenberg, M. P. Haspang, Michael Birch Madsen, Morten Olsen, H. Sykulska, S. Vijendran, W. P. Pike, U. Staufer, D. Parrat, M. Lemmon, M. H. Hecht, C. T. Mogensen, M. A. Gross, W. Goetz, J. Marshall & 8 others D. Britt, P. Smith, C. Shinohara, P. Woida, R. Woida, R. Tanner, R. Reynolds, A. Shaw

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The first NASA scout mission to Mars, Phoenix, launched 4 August will land in the northern part of Mars in the locality of 68 degrees N and 233 degrees E on 25 May 2008. Part of the science payload is the Magnetic Properties Experiments (MPE) that consists of two main experiments: the Improved Sweep Magnet Experiment (ISWEEP) and 10 sets of two Microscopy, Electrochemistry, and Conductivity Analyzer ( MECA) magnet substrates with embedded permanent magnets of different strength. The ISWEEP experiment is, as the name indicates, an improved version of the Sweep Magnet Experiments flown onboard the two Mars Exploration Rovers (MERs) Spirit and Opportunity. The sweep magnet is ring shaped and is designed to allow only nonmagnetic particles to enter a small circular area at the center of the surface of this structure. Results from this experiment have shown that on the MERs hardly any particles can be detected in the central area of this ring-shaped magnet. From this we have concluded that essentially all particles in the Martian atmosphere are magnetic in the sense that they are attracted to permanent magnets. In order to improve the sensitivity of the Sweep Magnet Experiment for detection of nonmagnetic or very weakly magnetic particles, the ISWEEP holds six ring-shaped magnets, somewhat larger than the sweep magnet of the MERs, and with six different background colors in the central area. The six different colors provide new possibilities for improved contrast between these background colors, i.e., any putative nonmagnetic particles should render these more easily detectable. The Surface Stereo Imager will also take advantage of the small clean areas in the ISWEEPs and use the presumably constant colors for radiometric calibration of images. The MECA magnets work as substrates in the MECA microscopy experiments; they are built to attract and hold magnetic particles from dust samples. The collected dust will then be examined by the optical microscope and the atomic force microscope in the MECA package.
Original languageEnglish
JournalJournal of Geophysical Research
Volume113
Pages (from-to)E00A16
ISSN2169-9380
DOIs
Publication statusPublished - 2008
Externally publishedYes

Cite this

Leer, K. ; Bertelsen, Pernille ; Binau, C. S. ; Djernis Olsen, Lone ; Drube, Line ; Falkenberg, Thea Vilstrup ; Haspang, M. P. ; Madsen, Michael Birch ; Olsen, Morten ; Sykulska, H. ; Vijendran, S. ; Pike, W. P. ; Staufer, U. ; Parrat, D. ; Lemmon, M. ; Hecht, M. H. ; Mogensen, C. T. ; Gross, M. A. ; Goetz, W. ; Marshall, J. ; Britt, D. ; Smith, P. ; Shinohara, C. ; Woida, P. ; Woida, R. ; Tanner, R. ; Reynolds, R. ; Shaw, A. / Magnetic properties experiments and the Surface Stereo Imager calibration target onboard the Mars Phoenix 2007 Lander : Design, calibration, and science goals. In: Journal of Geophysical Research. 2008 ; Vol. 113. pp. E00A16.
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title = "Magnetic properties experiments and the Surface Stereo Imager calibration target onboard the Mars Phoenix 2007 Lander: Design, calibration, and science goals",
abstract = "The first NASA scout mission to Mars, Phoenix, launched 4 August will land in the northern part of Mars in the locality of 68 degrees N and 233 degrees E on 25 May 2008. Part of the science payload is the Magnetic Properties Experiments (MPE) that consists of two main experiments: the Improved Sweep Magnet Experiment (ISWEEP) and 10 sets of two Microscopy, Electrochemistry, and Conductivity Analyzer ( MECA) magnet substrates with embedded permanent magnets of different strength. The ISWEEP experiment is, as the name indicates, an improved version of the Sweep Magnet Experiments flown onboard the two Mars Exploration Rovers (MERs) Spirit and Opportunity. The sweep magnet is ring shaped and is designed to allow only nonmagnetic particles to enter a small circular area at the center of the surface of this structure. Results from this experiment have shown that on the MERs hardly any particles can be detected in the central area of this ring-shaped magnet. From this we have concluded that essentially all particles in the Martian atmosphere are magnetic in the sense that they are attracted to permanent magnets. In order to improve the sensitivity of the Sweep Magnet Experiment for detection of nonmagnetic or very weakly magnetic particles, the ISWEEP holds six ring-shaped magnets, somewhat larger than the sweep magnet of the MERs, and with six different background colors in the central area. The six different colors provide new possibilities for improved contrast between these background colors, i.e., any putative nonmagnetic particles should render these more easily detectable. The Surface Stereo Imager will also take advantage of the small clean areas in the ISWEEPs and use the presumably constant colors for radiometric calibration of images. The MECA magnets work as substrates in the MECA microscopy experiments; they are built to attract and hold magnetic particles from dust samples. The collected dust will then be examined by the optical microscope and the atomic force microscope in the MECA package.",
author = "K. Leer and Pernille Bertelsen and Binau, {C. S.} and {Djernis Olsen}, Lone and Line Drube and Falkenberg, {Thea Vilstrup} and Haspang, {M. P.} and Madsen, {Michael Birch} and Morten Olsen and H. Sykulska and S. Vijendran and Pike, {W. P.} and U. Staufer and D. Parrat and M. Lemmon and Hecht, {M. H.} and Mogensen, {C. T.} and Gross, {M. A.} and W. Goetz and J. Marshall and D. Britt and P. Smith and C. Shinohara and P. Woida and R. Woida and R. Tanner and R. Reynolds and A. Shaw",
year = "2008",
doi = "10.1029/2007JE003014",
language = "English",
volume = "113",
pages = "E00A16",
journal = "Journal of Geophysical Research",
issn = "0148-0227",
publisher = "American Geophysical Union",

}

Leer, K, Bertelsen, P, Binau, CS, Djernis Olsen, L, Drube, L, Falkenberg, TV, Haspang, MP, Madsen, MB, Olsen, M, Sykulska, H, Vijendran, S, Pike, WP, Staufer, U, Parrat, D, Lemmon, M, Hecht, MH, Mogensen, CT, Gross, MA, Goetz, W, Marshall, J, Britt, D, Smith, P, Shinohara, C, Woida, P, Woida, R, Tanner, R, Reynolds, R & Shaw, A 2008, 'Magnetic properties experiments and the Surface Stereo Imager calibration target onboard the Mars Phoenix 2007 Lander: Design, calibration, and science goals', Journal of Geophysical Research, vol. 113, pp. E00A16. https://doi.org/10.1029/2007JE003014

Magnetic properties experiments and the Surface Stereo Imager calibration target onboard the Mars Phoenix 2007 Lander : Design, calibration, and science goals. / Leer, K.; Bertelsen, Pernille; Binau, C. S.; Djernis Olsen, Lone; Drube, Line; Falkenberg, Thea Vilstrup; Haspang, M. P.; Madsen, Michael Birch; Olsen, Morten; Sykulska, H.; Vijendran, S.; Pike, W. P.; Staufer, U.; Parrat, D.; Lemmon, M.; Hecht, M. H.; Mogensen, C. T.; Gross, M. A.; Goetz, W.; Marshall, J.; Britt, D.; Smith, P.; Shinohara, C.; Woida, P.; Woida, R.; Tanner, R.; Reynolds, R.; Shaw, A.

In: Journal of Geophysical Research, Vol. 113, 2008, p. E00A16.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Magnetic properties experiments and the Surface Stereo Imager calibration target onboard the Mars Phoenix 2007 Lander

T2 - Design, calibration, and science goals

AU - Leer, K.

AU - Bertelsen, Pernille

AU - Binau, C. S.

AU - Djernis Olsen, Lone

AU - Drube, Line

AU - Falkenberg, Thea Vilstrup

AU - Haspang, M. P.

AU - Madsen, Michael Birch

AU - Olsen, Morten

AU - Sykulska, H.

AU - Vijendran, S.

AU - Pike, W. P.

AU - Staufer, U.

AU - Parrat, D.

AU - Lemmon, M.

AU - Hecht, M. H.

AU - Mogensen, C. T.

AU - Gross, M. A.

AU - Goetz, W.

AU - Marshall, J.

AU - Britt, D.

AU - Smith, P.

AU - Shinohara, C.

AU - Woida, P.

AU - Woida, R.

AU - Tanner, R.

AU - Reynolds, R.

AU - Shaw, A.

PY - 2008

Y1 - 2008

N2 - The first NASA scout mission to Mars, Phoenix, launched 4 August will land in the northern part of Mars in the locality of 68 degrees N and 233 degrees E on 25 May 2008. Part of the science payload is the Magnetic Properties Experiments (MPE) that consists of two main experiments: the Improved Sweep Magnet Experiment (ISWEEP) and 10 sets of two Microscopy, Electrochemistry, and Conductivity Analyzer ( MECA) magnet substrates with embedded permanent magnets of different strength. The ISWEEP experiment is, as the name indicates, an improved version of the Sweep Magnet Experiments flown onboard the two Mars Exploration Rovers (MERs) Spirit and Opportunity. The sweep magnet is ring shaped and is designed to allow only nonmagnetic particles to enter a small circular area at the center of the surface of this structure. Results from this experiment have shown that on the MERs hardly any particles can be detected in the central area of this ring-shaped magnet. From this we have concluded that essentially all particles in the Martian atmosphere are magnetic in the sense that they are attracted to permanent magnets. In order to improve the sensitivity of the Sweep Magnet Experiment for detection of nonmagnetic or very weakly magnetic particles, the ISWEEP holds six ring-shaped magnets, somewhat larger than the sweep magnet of the MERs, and with six different background colors in the central area. The six different colors provide new possibilities for improved contrast between these background colors, i.e., any putative nonmagnetic particles should render these more easily detectable. The Surface Stereo Imager will also take advantage of the small clean areas in the ISWEEPs and use the presumably constant colors for radiometric calibration of images. The MECA magnets work as substrates in the MECA microscopy experiments; they are built to attract and hold magnetic particles from dust samples. The collected dust will then be examined by the optical microscope and the atomic force microscope in the MECA package.

AB - The first NASA scout mission to Mars, Phoenix, launched 4 August will land in the northern part of Mars in the locality of 68 degrees N and 233 degrees E on 25 May 2008. Part of the science payload is the Magnetic Properties Experiments (MPE) that consists of two main experiments: the Improved Sweep Magnet Experiment (ISWEEP) and 10 sets of two Microscopy, Electrochemistry, and Conductivity Analyzer ( MECA) magnet substrates with embedded permanent magnets of different strength. The ISWEEP experiment is, as the name indicates, an improved version of the Sweep Magnet Experiments flown onboard the two Mars Exploration Rovers (MERs) Spirit and Opportunity. The sweep magnet is ring shaped and is designed to allow only nonmagnetic particles to enter a small circular area at the center of the surface of this structure. Results from this experiment have shown that on the MERs hardly any particles can be detected in the central area of this ring-shaped magnet. From this we have concluded that essentially all particles in the Martian atmosphere are magnetic in the sense that they are attracted to permanent magnets. In order to improve the sensitivity of the Sweep Magnet Experiment for detection of nonmagnetic or very weakly magnetic particles, the ISWEEP holds six ring-shaped magnets, somewhat larger than the sweep magnet of the MERs, and with six different background colors in the central area. The six different colors provide new possibilities for improved contrast between these background colors, i.e., any putative nonmagnetic particles should render these more easily detectable. The Surface Stereo Imager will also take advantage of the small clean areas in the ISWEEPs and use the presumably constant colors for radiometric calibration of images. The MECA magnets work as substrates in the MECA microscopy experiments; they are built to attract and hold magnetic particles from dust samples. The collected dust will then be examined by the optical microscope and the atomic force microscope in the MECA package.

U2 - 10.1029/2007JE003014

DO - 10.1029/2007JE003014

M3 - Journal article

VL - 113

SP - E00A16

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

SN - 0148-0227

ER -