ASTROSAT CZTI

Data Quality Report

Orbit 58348

Creation date: 2026-07-11T04:07:57.164267
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_044T03_9000006588_58348cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58348cztM0_level2_quad_clean.evt
Size (bytes)417,205,44098,173,440
Size397.9 MB 93.6 MB
Events in quadrant A3,120,249647,700
Events in quadrant B5,300,700643,950
Events in quadrant C3,319,238621,214
Events in quadrant D3,175,172586,387

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143782
B0205332
C0149192
D0143672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6787520.766171%
B67875768.486813%
C6787660.972447%
D6786320.471559%

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 7712 6788 22 22 0.29% 0.32%
B 7712 6788 386 386 5.01% 5.69%
C 7712 6788 38 38 0.49% 0.56%
D 7711 6787 20 20 0.26% 0.29%

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 80 158165 863.13 729 709 182.4
A 2 143 34727 186.48 729 709 182.4
A 3 14 34133 183.22 729 709 182.4
B 10 128 1709492 11293.49 702 676 151.3
B 5 185 234633 1546.21 702 676 151.3
B 8 234 147771 972.14 702 676 151.3
C 6 223 201624 1024.26 712 706 196.2
C 4 5 140616 713.25 712 706 196.2
C 3 30 79665 402.53 712 706 196.2
D 3 12 151288 741.12 711 677 203.2
D 11 129 117326 574.0 711 677 203.2
D 5 173 53690 260.86 711 677 203.2

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