ASTROSAT CZTI

Data Quality Report

Orbit 59398

Creation date: 2026-09-19T18:12:25.590243
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/AS1A14_033T01_9000006608_59398cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59398cztM0_level2_quad_clean.evt
Size (bytes)399,643,200108,596,160
Size381.1 MB 103.6 MB
Events in quadrant A3,669,110703,486
Events in quadrant B3,367,878772,339
Events in quadrant C3,301,449689,767
Events in quadrant D3,915,941640,072

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156032
B0146382
C0145722
D0162082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69252203.176895%
B69261572.266821%
C6926751.082876%
D69261331.920300%

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 9150 6927 101 101 1.10% 1.46%
B 9151 6928 5 5 0.05% 0.07%
C 9151 6928 5 5 0.05% 0.07%
D 9151 6928 63 63 0.69% 0.91%

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 14 238 411030 2101.79 804 782 195.2
A 10 251 42480 213.63 804 782 195.2
A 3 245 39439 198.05 804 782 195.2
B 4 236 83941 489.94 796 765 169.8
B 0 186 37009 213.49 796 765 169.8
B 5 185 33146 190.74 796 765 169.8
C 6 223 96830 444.01 786 778 216.3
C 15 208 45231 205.49 786 778 216.3
C 3 242 28502 128.16 786 778 216.3
D 12 110 338173 1544.51 781 745 218.5
D 3 12 142629 649.45 781 745 218.5
D 13 138 139803 636.51 781 745 218.5

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

TCT plots

Parameter TCT0 TCT_healed
Tct