ASTROSAT CZTI

Data Quality Report

Orbit 56392

Creation date: 2026-03-01T13:34:42.087187
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_083T05_9000006554_56392cztM0_level2.fits modeM0/AS1A14_083T05_9000006554_56392cztM0_level2_quad_clean.evt
Size (bytes)1,054,324,80059,659,200
Size1005.5 MB 56.9 MB
Events in quadrant A15,661,703116,122
Events in quadrant B5,055,119643,829
Events in quadrant C3,288,272593,978
Events in quadrant D14,522,0811,381

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0507831
B0194181
C0145302
D0476021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6467546684.521416%
B64675598.643884%
C64661542.381689%
D6467645699.829906%

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 7467 6468 5064 5064 67.82% 78.29%
B 7467 6468 238 238 3.19% 3.68%
C 7466 6467 37 37 0.50% 0.57%
D 7466 6466 4658 4658 62.39% 72.04%

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 12 3 9962034 113971.82 348 338 87.4
A 4 95 2228538 25492.85 348 338 87.4
A 12 194 1178113 13474.93 348 338 87.4
B 4 206 1178624 8013.93 691 667 147.0
B 5 172 798417 5427.28 691 667 147.0
B 0 63 73923 498.38 691 667 147.0
C 15 230 130202 685.1 698 689 189.0
C 12 254 98981 519.95 698 689 189.0
C 6 9 98485 517.33 698 689 189.0
D 8 129 12734520 347926.82 118 112 36.6
D 5 32 571112 15600.74 118 112 36.6
D 2 33 378781 10345.91 118 112 36.6

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