HITRANonline provides access to the HITRAN database, including molecular line-by-line parameters, cross-section data, and documentation.
The ACE Science Center
ACE Science Center offers data and plots from the spacecraft, with browse, download, and documentation sections.
About The ACE Science Center
The ACE Science Center (ASC) provides access to data and plots from the Advanced Composition Explorer (ACE) spacecraft. It handles Level 1 and Browse Data processing for the ACE mission, distributes science data to the community, prepares science data for archiving at the NASA Space Physics Data Facility (SPDF), and acts as the archive for all ACE data during the mission's lifetime. The center is intended to facilitate collaborative work on ACE data and ensure those data are properly archived and publicly available. The collaborators served are not limited to ACE project-funded investigators.
The site organizes data into sections including Verified/Level2, Contributed (Level3), Summary Plots, Browse (Not verified), Real Time, Level 1, ACE Att/Orbit, Time Calibration, Housekeeping, and Telemetry Data Coverage. Documentation sections cover data docs, mission docs, ACE instruments, reports/status, publications, and ACE calendars. Some browse data are labeled "Not verified."
Key features
- Handles Level 1 and Browse Data processing and distributes ACE science data
- Prepares science data for archiving at NASA Space Physics Data Facility
- Acts as archive for all ACE data during the mission lifetime
- Access to Verified/Level2, Contributed (Level3), Summary Plots, Real Time, and Level 1
- Documentation for data, mission, ACE instruments, reports, publications, and calendars
- Interface between project scientists and the Flight Operations Team
Best for: Researchers and collaborators, including those not funded by the ACE project, seeking ACE spacecraft data and related documentation.
Good for
- Data are intended to be properly archived and publicly available.
- Collaborators are not limited to ACE project-funded investigators.
- Centralized services are intended to standardize data formatting and reduce redundant processing.
Watch out for
- Some browse data are labeled "Not verified."
The ACE Science Center at a glance
- Website
- izw1.caltech.edu/ACE/ASC
- Category
- Research & Data › Open Data & Datasets
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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The ACE Science Center FAQ
Who can use the ACE Science Center data?
The collaborators served are not limited to ACE project-funded investigators, and the center is intended to ensure ACE data are properly archived and publicly available.
What types of ACE data and plots are available?
Sections include Verified/Level2, Contributed (Level3), Summary Plots, Browse (Not verified), Real Time, Level 1, ACE Att/Orbit, Time Calibration, Housekeeping, and Telemetry Data Coverage.
Where are ACE data archived?
The center prepares science data for archiving at the NASA Space Physics Data Facility (SPDF) and acts as the archive for all ACE data during the mission lifetime.
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