# Sky Brightness Contrast Measurement before Sunrise and after Sunset over a Baghdad Region

**Authors:** Unknown (Iraqi researchers)
**Year:** ~2021
**Journal:** Unknown (possibly Iraqi Journal of Science or Journal of Physics: Conference Series)
**URL:** Could not locate on ResearchGate, Google Scholar, or direct search
**Sites studied:** Baghdad, Iraq (~33 20'N, 44 23'E)
**Observation method:** Sky brightness measurement (likely SQM)
**Date range:** ~2 nights
**Records:** Minimal (2 nights)

## Status

**COULD NOT LOCATE PAPER.** Searched:
- ResearchGate (403 blocked)
- Google Scholar (JavaScript required, no results in static HTML)
- Direct DOI search (no DOI known)
- PubMed (not indexed)

The paper title and approximate details were provided but no accessible URL could be found. The paper reportedly covers only 2 nights of data from Baghdad, which would provide minimal additional training value.

## For ML Training

Even if found, 2 nights of data from a single urban location provides very limited training value. Low priority for further search. Baghdad coordinates (33.33N, 44.38E) and UTC+3 are noted for reference.
