ASTROSAT CZTI

Data Quality Report

Orbit 57032

Creation date: 2026-04-13T14:28:36.937832
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_083T14_9000006564_57032cztM0_level2.fits modeM0/AS1A14_083T14_9000006564_57032cztM0_level2_quad_clean.evt
Size (bytes)489,240,00086,077,440
Size466.6 MB 82.1 MB
Events in quadrant A7,687,313480,620
Events in quadrant B2,847,384636,269
Events in quadrant C3,757,928545,063
Events in quadrant D3,344,011519,693

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270261
B0127331
C0154731
D0142371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6087141723.279119%
B60881252.053219%
C60883585.880420%
D60881873.071616%

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 7012 6088 1250 1250 17.83% 20.53%
B 7013 6089 10 10 0.14% 0.16%
C 7013 6089 274 274 3.91% 4.50%
D 7013 6089 102 102 1.45% 1.68%

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 5067411 33207.04 622 608 152.6
A 4 207 100553 655.02 622 608 152.6
A 3 245 39929 257.7 622 608 152.6
B 0 63 128409 917.09 656 631 139.3
B 10 16 38813 274.04 656 631 139.3
B 12 111 16843 116.36 656 631 139.3
C 12 252 756621 4366.83 636 630 173.1
C 12 249 141161 811.75 636 630 173.1
C 13 23 124368 714.75 636 630 173.1
D 12 251 232019 1285.45 641 613 180.0
D 2 249 217188 1203.06 641 613 180.0
D 3 12 137263 759.08 641 613 180.0

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