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Spectrum
(2022-07-20,
MarkCresitelloDittmar
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Spectrum Data Model: version 1.2
Spectrum Data Model: version 1.2
Goals
Participants
Use Cases
Discussion Threads
Data Model Updates
Implementations
Goals
This update is to satisfy requested enhancements to the v1.1 model document.
Presentations by Vandana Desai
Nov. 2020 Interop:
Implementation of the IVOA Spectral Data Model at IPAC” assessment of V1.1 Recommendation
May 2021 Interop:
"IVOA Spectral Models and Access in the Era of Big Data”
enhancement request to support IPAC use cases
Participants
data modeler:
MarkCresitelloDittmar
editor(s):
MarkCresitelloDittmar
implementer(s):
Firefly: ???
Spectral plotter
CASSIS: ???
Spectral analyser
GAVO: ???
data provider
Use Cases
The requests stem from visualization use cases:
1-D spectra from Spitzer’s Infrared Spectrograph have multiple spectral orders
Spectral orders can overlap in wavelength
Plotting a Spitzer spectrum without accounting for orders gives you a mess
SEDs often include limits on measurements
these can be upper or lower limits
Plotters need to indicate limits clearly to avoid scientific misunderstanding
SDM1.1 has an ad-hoc representation for upper limits (only) which may be usable, but is conceptually incorrect.
Discussion Threads
Preliminary meetings:
Interop DAL/DM Session - May 27, 2021
DAL/DM Running meeting - June 30, 2021
IVOA - Spectrum Data Model change request - Oct. 15, 2021
Planning meetings:
DM Meeting 20220622:
Notes
Data Model Updates
The document is being updated in the IVOA Git repository
SpectrumDM
: branch
wd-v1.2
Implementations
TBD
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Topic revision: r3 - 2022-07-20
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MarkCresitelloDittmar
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