ASTROSAT CZTI

Data Quality Report

Orbit 03569

Creation date: 2024-06-27T14:31:04.441664
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/AS1G05_045T01_9000000468_03569cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03569cztM0_level2_quad_clean.evt
Size (bytes)1,161,967,680183,395,520
Size1.1 GB 174.9 MB
Events in quadrant A8,229,4661,084,940
Events in quadrant B9,375,8141,079,407
Events in quadrant C8,228,3181,077,287
Events in quadrant D8,114,0641,047,352

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0375296
B0398723
C0376325
D0380553

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183512361.286033%
B183522511.367698%
C183511710.931829%
D183522001.089799%

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 20146 18351 7 7 0.03% 0.04%
B 20146 18351 4 4 0.02% 0.02%
C 20146 18351 5 5 0.02% 0.03%
D 20146 18351 40 40 0.20% 0.22%

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 3 1 107083 246.26 2077 2024 426.6
A 0 50 64445 146.32 2077 2024 426.6
A 0 118 29583 64.6 2077 2024 426.6
B 15 204 939023 2278.33 2107 2050 411.3
B 4 81 55880 130.89 2107 2050 411.3
B 0 228 54264 126.96 2107 2050 411.3
C 15 208 175371 366.74 2026 2033 472.6
C 1 16 89175 184.37 2026 2033 472.6
C 8 128 19333 36.6 2026 2033 472.6
D 13 223 117294 237.23 2016 1960 486.2
D 2 37 76802 153.94 2016 1960 486.2
D 12 32 66341 132.43 2016 1960 486.2

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