v0.1.2 bug fix wrt v0.1.1

Just a bug fix for circular import compared to v0.1.1

V0.1.1 point release (Post-IF delivery)

The release v0.1.1 marks a point release to SDS post the IF delivery.
Compared to the previous release (v0.1.0), the current release contains:

1. Added basic CircleCI configuration to the s1-reader repository
2. Added the capability of downloading precise or restituted orbit ephemerides given the SAFE file path
3. Make the burst ID convention consistent with that of ESA S1 burst map
4. Added a text file with ESA burst ID and max ID number of each ID

Version 0.1.0 - OPERA L2_CSLC_S1 Interface Delivery

This is the first release for the s1reader package, to reads Sentinel-1 data into the ISCE3-compatible burst class. This release is for the OPERA L2_CSLC_S1 interface delivery (IF delivery) and is consistent with isce3 v0.6. This release includes the following contents:

• src/s1reader: core module

  • s1_burst_slc.py for S1 burst class definition, I/O, correction for bistatic azimuth delay & Doppler-induced range shift.
  • s1_orbit.py for Sentinel-1 orbit file searching
  • s1_reader.py for the high-level API and XML parsing
  • utils/plot_bursts.py for plotting the burst map for quality checking

• tests

  • unit tests based on GitHub workflow

• packaging:

  • GitHub issue templates for bug report and feature request
  • license
  • readme.md
  • requirements.txt and environment.yaml
  • setup.cfg for pip install