ASTROSAT CZTI

Data Quality Report

Orbit 03132

Creation date: 2024-06-27T14:25:04.794980
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/AS1T01_118T01_9000000430_03132cztM0_level2.evt modeM0/AS1T01_118T01_9000000430_03132cztM0_level2_quad_clean.evt
Size (bytes)880,125,12081,360,000
Size839.4 MB 77.6 MB
Events in quadrant A3,821,323515,271
Events in quadrant B4,125,421518,360
Events in quadrant C13,674,951383,654
Events in quadrant D4,489,407486,390

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170602
B0175871
C0462661
D0192501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80372463.060844%
B80373143.906930%
C8037364045.290531%
D80372593.222595%

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 8262 8038 6 6 0.07% 0.07%
B 8262 8037 5 5 0.06% 0.06%
C 8262 8037 2723 2723 32.96% 33.88%
D 8262 8038 159 159 1.92% 1.98%

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 12 247 44760 221.22 945 922 198.2
A 0 13 42826 211.46 945 922 198.2
A 8 15 39683 195.6 945 922 198.2
B 15 204 246114 1305.49 958 933 187.8
B 2 249 52166 272.79 958 933 187.8
B 4 81 29545 152.35 958 933 187.8
C 0 219 10377585 59463.32 743 744 174.5
C 14 223 157951 900.86 743 744 174.5
C 6 80 80148 455.02 743 744 174.5
D 12 233 382933 1707.68 907 877 223.7
D 5 233 139026 617.49 907 877 223.7
D 2 136 132878 590.01 907 877 223.7

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