ASTROSAT CZTI

Data Quality Report

Orbit 53219

Creation date: 2025-08-01T12:28:19.830516
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/AS1C09_011T06_9000006490_53219cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53219cztM0_level2_quad_clean.evt
Size (bytes)730,486,08078,491,520
Size696.6 MB 74.9 MB
Events in quadrant A3,047,673592,490
Events in quadrant B4,059,141603,797
Events in quadrant C11,632,031275,303
Events in quadrant D7,822,089472,738

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135021
B0164061
C0387081
D0275406

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6188360.581771%
B61893255.251252%
C6189342055.259331%
D618890314.592760%

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 7164 6189 14 14 0.20% 0.23%
B 7165 6190 182 182 2.54% 2.94%
C 7165 6190 3167 3167 44.20% 51.16%
D 7164 6189 932 932 13.01% 15.06%

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 62 115061 711.94 642 626 160.7
A 3 27 114505 708.48 642 626 160.7
A 3 14 89211 551.12 642 626 160.7
B 2 249 579777 4354.04 626 605 133.0
B 12 17 302780 2271.66 626 605 133.0
B 8 128 157201 1177.24 626 605 133.0
C 1 241 7474279 60284.75 447 444 124.0
C 15 224 775445 6251.24 447 444 124.0
C 4 5 679104 5474.14 447 444 124.0
D 15 125 4066251 23895.42 593 565 170.1
D 11 176 432215 2536.95 593 565 170.1
D 10 172 199621 1169.92 593 565 170.1

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