ASTROSAT CZTI

Data Quality Report

Orbit 56007

Creation date: 2026-02-06T18:59:01.415885
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_066T02_9000006546_56007cztM0_level2.fits modeM0/AS1A14_066T02_9000006546_56007cztM0_level2_quad_clean.evt
Size (bytes)1,396,699,200264,611,520
Size1.3 GB 252.4 MB
Events in quadrant A12,539,0591,737,963
Events in quadrant B9,789,7241,843,926
Events in quadrant C9,887,0091,689,218
Events in quadrant D17,967,9511,389,413

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0508383
B0431953
C0444203
D0670713

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03960
B03960
C03960
D03960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A196068884.529226%
B196067393.769254%
C196065802.958278%
D19606274914.021218%

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 20816 19606 402 402 1.93% 2.05%
B 20816 19606 127 127 0.61% 0.65%
C 20816 19606 343 343 1.65% 1.75%
D 20816 19606 2259 2259 10.85% 11.52%

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 3 14 1256232 2396.41 2131 2073 523.3
A 4 249 1198551 2286.19 2131 2073 523.3
A 0 8 840550 1602.14 2131 2073 523.3
B 2 249 378974 832.56 2114 2029 452.8
B 0 213 213299 466.63 2114 2029 452.8
B 0 199 200216 437.74 2114 2029 452.8
C 15 199 772333 1351.67 2082 2063 569.9
C 13 3 461133 805.57 2082 2063 569.9
C 2 12 127351 219.85 2082 2063 569.9
D 8 129 4305416 7788.93 1964 1878 552.5
D 8 240 2109252 3814.12 1964 1878 552.5
D 11 129 1087039 1964.02 1964 1878 552.5

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