ASTROSAT CZTI

Data Quality Report

Orbit 47449

Creation date: 2024-07-07T06:51:13.568441
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/AS1A13_089T01_9000006330_47449cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47449cztM0_level2_quad_clean.evt
Size (bytes)501,540,480116,256,960
Size478.3 MB 110.9 MB
Events in quadrant A7,460,426750,367
Events in quadrant B3,833,087787,558
Events in quadrant C3,229,036772,412
Events in quadrant D3,480,178704,938

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270173
B0164193
C0150003
D0157633

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72493584.938612%
B72502102.896552%
C7250330.455172%
D7250560.772414%

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 8819 7252 35 35 0.40% 0.48%
B 8820 7253 63 63 0.71% 0.87%
C 8820 7253 3 3 0.03% 0.04%
D 8820 7253 27 27 0.31% 0.37%

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 10 83 4078052 24277.98 808 789 167.9
A 9 191 221027 1311.4 808 789 167.9
A 13 248 18128 103.24 808 789 167.9
B 5 32 360288 2198.48 823 797 163.5
B 0 200 78742 476.67 823 797 163.5
B 0 198 45599 273.99 823 797 163.5
C 1 3 25623 128.48 815 818 193.1
C 3 233 15727 77.22 815 818 193.1
C 12 250 9023 42.5 815 818 193.1
D 2 249 250430 1225.46 806 779 203.7
D 2 234 36185 173.8 806 779 203.7
D 8 176 31967 153.09 806 779 203.7

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