ASTROSAT CZTI

Data Quality Report

Orbit 07414

Creation date: 2024-06-27T15:19:29.883089
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/AS1G06_138T01_9000001020_07414cztM0_level2.evt modeM0/AS1G06_138T01_9000001020_07414cztM0_level2_quad_clean.evt
Size (bytes)391,596,48069,217,920
Size373.5 MB 66.0 MB
Events in quadrant A2,667,251420,169
Events in quadrant B2,753,182433,071
Events in quadrant C2,629,185427,829
Events in quadrant D3,411,116405,231

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121342
B0122471
C0120711
D0140921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5856480.819672%
B5856861.468579%
C5856250.426913%
D58561111.895492%

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 6286 5857 0 0 0.00% 0.00%
B 6286 5857 0 0 0.00% 0.00%
C 6286 5857 0 0 0.00% 0.00%
D 6286 5857 69 69 1.10% 1.18%

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 15 234 12914 86.39 687 671 141.7
A 0 226 6569 41.62 687 671 141.7
A 12 194 6049 37.95 687 671 141.7
B 0 214 41130 299.81 695 678 134.9
B 12 111 14090 99.4 695 678 134.9
B 0 229 13626 95.96 695 678 134.9
C 14 205 7255 41.7 670 673 157.8
C 13 61 5231 28.88 670 673 157.8
C 9 68 3089 15.31 670 673 157.8
D 13 104 388137 2341.11 663 641 165.5
D 5 233 219374 1321.5 663 641 165.5
D 8 195 124230 746.68 663 641 165.5

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