ASTROSAT CZTI

Data Quality Report

Orbit 22633

Creation date: 2024-06-27T18:43:49.693031
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_112T01_9000003360_22633cztM0_level2.evt modeM0/AS1A07_112T01_9000003360_22633cztM0_level2_quad_clean.evt
Size (bytes)2,629,584,000442,808,640
Size2.4 GB 422.3 MB
Events in quadrant A16,430,8742,813,601
Events in quadrant B16,918,7402,854,558
Events in quadrant C16,777,5722,753,306
Events in quadrant D27,121,9452,560,245

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0724276
B0734686
C0731626
D01051406

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07180
B07180
C07180
D07180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A353811960.553970%
B353822870.811147%
C353824701.328359%
D35382433512.251993%

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 38871 35388 0 0 0.00% 0.00%
B 38872 35389 19 19 0.05% 0.05%
C 38872 35389 27 27 0.07% 0.08%
D 38872 35389 2731 2731 7.03% 7.72%

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 11 47 61491 67.49 4245 4155 849.5
A 13 254 55599 60.56 4245 4155 849.5
A 3 137 36586 38.18 4245 4155 849.5
B 12 111 99555 119.5 4226 4115 798.7
B 10 247 93876 112.39 4226 4115 798.7
B 0 230 92578 110.76 4226 4115 798.7
C 14 238 641532 671.34 4068 4092 949.5
C 10 22 135188 138.07 4068 4092 949.5
C 0 207 72741 72.3 4068 4092 949.5
D 1 239 7284919 7827.69 3860 3757 930.2
D 7 238 2027853 2176.03 3860 3757 930.2
D 1 52 1753657 1881.25 3860 3757 930.2

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