ASTROSAT CZTI

Data Quality Report

Orbit 59244

Creation date: 2026-09-09T11:48:52.349174
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/AS1T05_271T01_9000006604_59244cztM0_level2.fits modeM0/AS1T05_271T01_9000006604_59244cztM0_level2_quad_clean.evt
Size (bytes)2,749,118,400478,177,920
Size2.6 GB 456.0 MB
Events in quadrant A16,104,7033,287,435
Events in quadrant B17,299,4943,535,748
Events in quadrant C16,913,3913,192,974
Events in quadrant D48,845,6872,149,699

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0729144
B0760694
C0753494
D01686534

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0430
B0430
C0430
D0430

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06820
B06820
C06820
D06820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A336523521.046000%
B336536922.056280%
C336534271.268832%
D336531074431.925831%

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 38011 33717 140 140 0.37% 0.42%
B 38012 33719 289 289 0.76% 0.86%
C 38012 33719 317 317 0.83% 0.94%
D 38012 33718 10655 10655 28.03% 31.60%

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 15 233 1059769 1172.05 3680 3590 901.1
A 10 251 499990 550.86 3680 3590 901.1
A 0 24 191547 208.58 3680 3590 901.1
B 2 247 1148629 1475.03 3650 3507 776.3
B 4 236 517652 662.27 3650 3507 776.3
B 4 201 272528 346.53 3650 3507 776.3
C 12 252 658102 658.59 3627 3596 993.8
C 5 250 633629 633.96 3627 3596 993.8
C 10 22 493732 493.19 3627 3596 993.8
D 12 110 29676631 32696.95 3211 3072 907.5
D 11 129 4349185 4788.93 3211 3072 907.5
D 12 2 1138176 1250.76 3211 3072 907.5

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