ASTROSAT CZTI

Data Quality Report

Orbit 03216

Creation date: 2024-06-27T14:25:57.958869
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_221T01_9000000438_03216cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03216cztM0_level2_quad_clean.evt
Size (bytes)566,225,28087,788,160
Size540.0 MB 83.7 MB
Events in quadrant A3,722,864529,579
Events in quadrant B4,158,041528,851
Events in quadrant C4,635,415526,080
Events in quadrant D4,084,163513,109

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168213
B0174552
C0193652
D0179642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80603203.970223%
B80603504.342432%
C80604285.310174%
D80603394.205955%

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 9620 8060 0 0 0.00% 0.00%
B 9620 8060 19 19 0.20% 0.24%
C 9620 8060 143 143 1.49% 1.77%
D 9620 8060 52 52 0.54% 0.65%

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 0 118 18452 89.41 951 926 196.0
A 0 226 12416 58.62 951 926 196.0
A 0 199 11650 54.71 951 926 196.0
B 2 249 165374 880.69 965 938 186.7
B 15 204 156139 831.23 965 938 186.7
B 1 223 37686 196.82 965 938 186.7
C 15 208 442448 2061.24 925 927 214.2
C 1 192 407274 1897.03 925 927 214.2
C 14 223 84246 388.97 925 927 214.2
D 13 223 152705 679.7 923 890 223.4
D 5 233 125775 559.13 923 890 223.4
D 13 120 110542 490.93 923 890 223.4

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