ASTROSAT CZTI

Data Quality Report

Orbit 23583

Creation date: 2024-06-27T18:56:26.362414
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/AS1A07_011T01_9000003482_23583cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23583cztM0_level2_quad_clean.evt
Size (bytes)507,741,120102,147,840
Size484.2 MB 97.4 MB
Events in quadrant A3,525,689653,412
Events in quadrant B3,777,760666,231
Events in quadrant C3,548,990633,409
Events in quadrant D4,025,415629,020

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153522
B0158932
C0153232
D0170523

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73401752.384196%
B73412072.819779%
C73412182.969623%
D73402853.882834%

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 7670 7340 11 11 0.14% 0.15%
B 7671 7341 20 20 0.26% 0.27%
C 7671 7341 44 44 0.57% 0.60%
D 7670 7340 173 173 2.26% 2.36%

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 6 16 117856 658.92 883 863 177.6
A 13 254 13285 69.96 883 863 177.6
A 3 137 7900 39.63 883 863 177.6
B 0 189 125993 747.71 876 850 167.4
B 3 64 121296 719.65 876 850 167.4
B 0 229 30227 175.52 876 850 167.4
C 0 10 136940 702.93 834 835 193.6
C 14 238 132874 681.93 834 835 193.6
C 1 16 15029 73.31 834 835 193.6
D 12 233 658573 3184.12 848 822 206.6
D 7 223 48541 231.0 848 822 206.6
D 1 52 32545 153.57 848 822 206.6

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