ASTROSAT CZTI

Data Quality Report

Orbit 20230613_T05_110T01_9000005686_level2

Creation date: 2023-06-14T10:34:12.072516
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/AS1T05_110T01_9000005686cztM0_level2.fits modeM0/AS1T05_110T01_9000005686cztM0_level2_quad_clean.evt
Size (bytes)135,754,560142,683,840
Size129.5 MB 136.1 MB
Events in quadrant A830,610873,524
Events in quadrant B793,160867,117
Events in quadrant C807,370839,727
Events in quadrant D698,664758,551

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02880
B02880
C02880
D02880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0315480
B0295980
C0306730
D0364360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14232370.259978%
B14232450.316189%
C142322101.475548%
D142325724.019112%

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 22245 14232 0 0 0.00% 0.00%
B 22245 14232 0 0 0.00% 0.00%
C 22245 14230 0 0 0.00% 0.00%
D 22245 14207 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 7 110 677 8.37 217 205 56.4
A 9 19 662 8.1 217 205 56.4
A 14 95 652 7.92 217 205 56.4
B 2 9 602 9.57 209 201 41.9
B 5 128 578 9.0 209 201 41.9
B 3 80 563 8.64 209 201 41.9
C 1 81 655 8.09 213 202 56.0
C 1 80 636 7.75 213 202 56.0
C 3 187 555 6.3 213 202 56.0
D 4 160 539 6.52 200 183 54.6
D 10 113 523 6.23 200 183 54.6
D 10 189 521 6.19 200 183 54.6

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