ASTROSAT CZTI

Data Quality Report

Orbit 48565

Creation date: 2024-09-23T10:59:29.706889
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/AS1A13_037T01_9000006436_48565cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48565cztM0_level2_quad_clean.evt
Size (bytes)110,655,36026,288,640
Size105.5 MB 25.1 MB
Events in quadrant A1,756,847162,568
Events in quadrant B762,854175,673
Events in quadrant C726,092173,995
Events in quadrant D714,882158,851

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0644135
B0361215
C0356921
D0358011

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17031025.989430%
B1708412.400468%
C1703120.704639%
D170350.293600%

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 3597 1711 0 0 0.00% 0.00%
B 3597 1720 0 0 0.00% 0.00%
C 3597 1712 0 0 0.00% 0.00%
D 3597 1711 0 0 0.00% 0.00%

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 10 83 1026608 24912.11 186 182 41.2
A 12 189 9036 214.89 186 182 41.2
A 13 254 3199 73.22 186 182 41.2
B 12 16 6920 166.81 189 182 40.4
B 12 111 5251 125.49 189 182 40.4
B 5 255 5225 124.85 189 182 40.4
C 12 250 4104 86.02 185 185 45.6
C 13 61 1295 24.36 185 185 45.6
C 10 20 500 6.91 185 185 45.6
D 2 234 7636 158.75 180 174 47.0
D 13 171 6919 143.5 180 174 47.0
D 7 96 6914 143.39 180 174 47.0

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter