ASTROSAT CZTI

Data Quality Report

Orbit 24206

Creation date: 2024-06-27T19:03:27.830110
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/AS1A07_160T05_9000003580_24206cztM0_level2.evt modeM0/AS1A07_160T05_9000003580_24206cztM0_level2_quad_clean.evt
Size (bytes)550,321,920108,103,680
Size524.8 MB 103.1 MB
Events in quadrant A3,532,884718,321
Events in quadrant B3,551,985719,033
Events in quadrant C4,307,166663,466
Events in quadrant D4,773,387659,256

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153120
B0153170
C0172050
D0190390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73822172.939583%
B73822072.804118%
C73834446.013816%
D73831872.532846%

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 7382 7382 0 0 0.00% 0.00%
B 7382 7382 0 0 0.00% 0.00%
C 7383 7383 115 115 1.56% 1.56%
D 7383 7383 41 41 0.56% 0.56%

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 16533 84.82 912 890 184.4
A 13 254 11978 60.12 912 890 184.4
A 3 137 8482 41.17 912 890 184.4
B 12 111 21063 117.67 900 877 171.6
B 11 111 19213 106.88 900 877 171.6
B 14 111 16696 92.21 900 877 171.6
C 2 16 581399 2906.27 856 858 199.8
C 7 247 246329 1228.86 856 858 199.8
C 14 238 134865 670.86 856 858 199.8
D 8 195 995798 4658.81 881 855 213.6
D 7 238 224735 1048.31 881 855 213.6
D 12 218 200232 933.58 881 855 213.6

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