ASTROSAT CZTI

Data Quality Report

Orbit 03742

Creation date: 2024-06-27T14:33:06.434870
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_248T01_9000000486_03742cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03742cztM0_level2_quad_clean.evt
Size (bytes)599,425,92089,890,560
Size571.7 MB 85.7 MB
Events in quadrant A4,956,837531,780
Events in quadrant B4,811,194531,339
Events in quadrant C3,717,920532,023
Events in quadrant D4,073,069518,178

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208423
B0203412
C0177622
D0189802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A87631681.917152%
B8763911.038457%
C8763160.182586%
D8763410.467876%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 9343 8764 127 127 1.36% 1.45%
B 9343 8764 30 30 0.32% 0.34%
C 9343 8764 0 0 0.00% 0.00%
D 9343 8764 31 31 0.33% 0.35%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 251 765379 3858.13 958 937 198.1
A 0 118 230446 1158.33 958 937 198.1
A 8 15 157206 788.69 958 937 198.1
B 0 173 477341 2509.52 978 953 189.8
B 15 204 292705 1536.89 978 953 189.8
B 14 167 99753 520.46 978 953 189.8
C 2 53 19533 84.53 945 951 219.8
C 13 61 7932 31.75 945 951 219.8
C 10 65 4696 17.03 945 951 219.8
D 1 20 176915 775.33 937 910 227.0
D 13 223 96749 422.18 937 910 227.0
D 12 217 49081 212.2 937 910 227.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
Veto Counter