ASTROSAT CZTI

Data Quality Report

Orbit 59060

Creation date: 2026-08-28T05:23:19.290183
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_004T02_9000006600_59060cztM0_level2.fits modeM0/AS1A14_004T02_9000006600_59060cztM0_level2_quad_clean.evt
Size (bytes)993,242,88061,848,000
Size947.2 MB 59.0 MB
Events in quadrant A3,472,771619,330
Events in quadrant B3,263,865646,854
Events in quadrant C14,487,033156,871
Events in quadrant D15,049,7084,853

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147981
B0142981
C0473771
D0490471

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6366570.895382%
B63671322.073190%
C6367492577.351971%
D6367633299.450291%

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 7246 6367 34 34 0.47% 0.53%
B 7247 6368 77 77 1.06% 1.21%
C 7247 6367 4636 4636 63.97% 72.81%
D 7246 6366 5172 5172 71.38% 81.24%

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 10 248 269349 1586.53 692 674 169.3
A 15 233 147847 869.06 692 674 169.3
A 10 251 116768 685.54 692 674 169.3
B 10 247 265940 1825.84 682 658 145.3
B 0 186 82986 566.63 682 658 145.3
B 5 185 69229 471.95 682 658 145.3
C 15 219 12407224 94113.8 481 478 131.8
C 14 254 48123 361.42 481 478 131.8
C 6 223 45793 343.75 481 478 131.8
D 12 1 14180385 449631.42 104 99 31.5
D 2 62 228928 7255.76 104 99 31.5
D 2 31 157074 4977.4 104 99 31.5

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