ASTROSAT CZTI

Data Quality Report

Orbit 14697

Creation date: 2024-06-27T16:58:36.665568
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/AS1G08_057T09_9000002174_14697cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14697cztM0_level2_quad_clean.evt
Size (bytes)412,248,96070,107,840
Size393.2 MB 66.9 MB
Events in quadrant A2,824,625440,830
Events in quadrant B2,665,268434,105
Events in quadrant C4,025,652425,495
Events in quadrant D2,588,567430,342

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118752
B0115501
C0162181
D0117141

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5596701.250893%
B5596751.340243%
C5596811.447462%
D5596340.607577%

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 5972 5597 3 3 0.05% 0.05%
B 5972 5597 0 0 0.00% 0.00%
C 5972 5597 0 0 0.00% 0.00%
D 5972 5598 2 2 0.03% 0.04%

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 12 189 130842 951.65 667 651 136.8
A 8 15 88425 641.6 667 651 136.8
A 9 143 30484 218.07 667 651 136.8
B 0 214 23925 181.13 662 645 128.5
B 0 205 20454 154.12 662 645 128.5
B 0 197 18903 142.05 662 645 128.5
C 3 233 1477971 9839.84 645 648 150.1
C 3 234 12697 80.25 645 648 150.1
C 8 128 7068 42.76 645 648 150.1
D 12 110 71485 452.94 647 630 156.4
D 2 234 21439 133.02 647 630 156.4
D 2 120 18887 116.71 647 630 156.4

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