Image Details
Caption: Figure 5.
Variation in the detector dark current with respect to exposure time, at different epochs. The observing dates are mentioned within the brackets. The detector temperatures are ≈–5°C ± 0.03°C. The straight lines are the least-squares fit to the corresponding data points. Observations in the epochs 2023 and 2025 are available only at exposure times ≤60 s.
© 2026. The Author(s). Published by the American Astronomical Society.