ASTROSAT CZTI

Data Quality Report

Orbit 17382

Creation date: 2024-06-27T17:35:53.514749
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/AS1A05_225T02_9000002570_17382cztM0_level2.evt modeM0/AS1A05_225T02_9000002570_17382cztM0_level2_quad_clean.evt
Size (bytes)497,908,80099,815,040
Size474.8 MB 95.2 MB
Events in quadrant A3,319,544669,851
Events in quadrant B3,231,847671,432
Events in quadrant C3,210,240634,172
Events in quadrant D4,891,351608,792

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138831
B0135971
C0134172
D0186771

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6283931.480185%
B6283641.018622%
C6282761.209806%
D62823796.033110%

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 7558 6283 48 48 0.64% 0.76%
B 7558 6283 0 0 0.00% 0.00%
C 7557 6283 0 0 0.00% 0.00%
D 7557 6283 295 295 3.90% 4.70%

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 9 143 139532 851.57 826 810 162.9
A 0 226 7389 40.38 826 810 162.9
A 12 194 6240 33.33 826 810 162.9
B 4 216 24181 152.98 818 799 152.8
B 12 111 17260 107.7 818 799 152.8
B 11 111 14931 92.46 818 799 152.8
C 14 238 127992 706.88 787 793 179.9
C 3 233 13438 70.27 787 793 179.9
C 13 61 5606 26.75 787 793 179.9
D 11 176 1340344 7030.86 791 770 190.5
D 13 232 367430 1924.45 791 770 190.5
D 13 189 65938 342.04 791 770 190.5

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