ASTROSAT CZTI

Data Quality Report

Orbit 59210

Creation date: 2026-09-07T11:58:25.733519
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_59210cztM0_level2.fits modeM0/AS1T05_271T01_9000006604_59210cztM0_level2_quad_clean.evt
Size (bytes)429,073,92094,809,600
Size409.2 MB 90.4 MB
Events in quadrant A3,263,074636,882
Events in quadrant B2,925,851686,267
Events in quadrant C3,202,963611,232
Events in quadrant D6,021,713515,007

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155251684
B0143771548
C0151681610
D0248522731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249
B02410
C02412
D0238

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014016
B014018
C014016
D014016

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6030871.442786%
B6051931.536936%
C60371212.004307%
D601473312.188227%

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 7541 6088 34 34 0.45% 0.56%
B 7541 6130 9 9 0.12% 0.15%
C 7533 6102 74 74 0.98% 1.21%
D 7541 6090 513 513 6.80% 8.42%

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 0 24 214280 1259.54 690 675 169.6
A 3 14 160099 940.06 690 675 169.6
A 10 251 141675 831.42 690 675 169.6
B 10 247 58360 387.87 691 665 148.7
B 4 236 44915 297.48 691 665 148.7
B 12 111 17797 115.18 691 665 148.7
C 15 147 209256 1108.63 686 681 188.1
C 12 252 86039 453.7 686 681 188.1
C 6 223 61367 322.56 686 681 188.1
D 12 110 2462508 13273.97 649 620 185.5
D 11 129 567316 3055.5 649 620 185.5
D 3 12 203934 1096.23 649 620 185.5

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