ASTROSAT CZTI

Data Quality Report

Orbit 53199

Creation date: 2025-07-29T16:16:37.280786
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/AS1C09_011T06_9000006490_53199cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53199cztM0_level2_quad_clean.evt
Size (bytes)905,984,64081,040,320
Size864.0 MB 77.3 MB
Events in quadrant A3,207,347655,803
Events in quadrant B4,019,128695,149
Events in quadrant C7,020,759564,521
Events in quadrant D18,740,33544,607

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149980
B0170140
C0258530
D0602502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7082430.607173%
B70831482.089510%
C708380611.379359%
D7082666894.154194%

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 7082 7082 41 41 0.58% 0.58%
B 7083 7083 102 102 1.44% 1.44%
C 7082 7082 895 895 12.64% 12.64%
D 7081 7081 6702 6702 94.65% 94.65%

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 8 176191 972.22 720 702 180.5
A 7 206 56907 311.38 720 702 180.5
A 3 62 44236 241.18 720 702 180.5
B 2 249 424552 2807.67 709 685 151.0
B 4 81 254893 1683.86 709 685 151.0
B 1 255 168640 1112.52 709 685 151.0
C 15 224 1639647 8795.85 669 661 186.3
C 1 241 1087228 5831.22 669 661 186.3
C 13 3 628584 3369.84 669 661 186.3
D 10 117 10075092 135648.98 252 240 74.3
D 15 125 7052037 94946.22 252 240 74.3
D 10 172 262329 3528.8 252 240 74.3

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