ASTROSAT CZTI

Data Quality Report

Orbit 06152

Creation date: 2024-06-27T15:03:27.617003
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/AS1A02_199T01_9000000800_06152cztM0_level2.evt modeM0/AS1A02_199T01_9000000800_06152cztM0_level2_quad_clean.evt
Size (bytes)420,459,840103,890,240
Size401.0 MB 99.1 MB
Events in quadrant A2,959,282686,700
Events in quadrant B3,333,038695,772
Events in quadrant C2,859,838682,640
Events in quadrant D3,157,408646,106

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130304
B0141373
C0127223
D0138973

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6238230.368708%
B6238681.090093%
C6238240.384739%
D62381021.635139%

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 7563 6240 2 2 0.03% 0.03%
B 7563 6240 35 35 0.46% 0.56%
C 7563 6240 0 0 0.00% 0.00%
D 7563 6240 64 64 0.85% 1.03%

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 8 15 104700 703.54 736 723 147.8
A 0 226 7127 43.33 736 723 147.8
A 12 194 7070 42.95 736 723 147.8
B 3 64 191163 1375.23 742 725 138.5
B 15 204 89461 640.8 742 725 138.5
B 0 219 71195 508.89 742 725 138.5
C 9 54 9272 51.12 728 731 167.1
C 1 16 6324 33.47 728 731 167.1
C 13 61 5788 30.26 728 731 167.1
D 13 169 322154 1851.02 720 698 173.7
D 5 97 44104 249.94 720 698 173.7
D 8 195 25090 140.45 720 698 173.7

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