ASTROSAT CZTI

Data Quality Report

Orbit 17407

Creation date: 2024-06-27T17:36:07.616867
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/AS1T03_030T01_9000002574_17407cztM0_level2.evt modeM0/AS1T03_030T01_9000002574_17407cztM0_level2_quad_clean.evt
Size (bytes)575,317,44084,049,920
Size548.7 MB 80.2 MB
Events in quadrant A3,609,939516,786
Events in quadrant B3,745,330521,798
Events in quadrant C3,736,687501,178
Events in quadrant D5,814,554474,943

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155832
B0158192
C0157042
D0223973

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7623610.800210%
B7624931.219832%
C76241071.403463%
D76234986.532861%

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 9318 7625 0 0 0.00% 0.00%
B 9319 7626 2 2 0.02% 0.03%
C 9319 7625 0 0 0.00% 0.00%
D 9318 7624 388 388 4.16% 5.09%

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 0 226 8249 38.61 938 918 189.9
A 3 137 7091 32.51 938 918 189.9
A 12 194 6883 31.41 938 918 189.9
B 0 197 25461 135.13 941 914 181.7
B 12 111 22054 116.37 941 914 181.7
B 11 111 18924 99.14 941 914 181.7
C 14 238 138325 649.44 901 908 211.6
C 5 218 40845 188.74 901 908 211.6
C 3 233 39833 183.96 901 908 211.6
D 11 176 1541874 7056.92 895 869 218.4
D 10 70 282997 1291.98 895 869 218.4
D 1 52 243654 1111.82 895 869 218.4

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