ASTROSAT CZTI

Data Quality Report

Orbit 58344

Creation date: 2026-07-10T21:11:23.985733
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_044T03_9000006588_58344cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58344cztM0_level2_quad_clean.evt
Size (bytes)645,428,16097,516,800
Size615.5 MB 93.0 MB
Events in quadrant A4,351,607662,474
Events in quadrant B6,711,477665,010
Events in quadrant C7,883,383505,468
Events in quadrant D4,384,271616,281

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182020
B0249650
C0285090
D0177620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72293384.675612%
B722981211.232536%
C7230182325.214385%
D72291071.480149%

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 7229 7229 225 225 3.11% 3.11%
B 7229 7229 469 469 6.49% 6.49%
C 7230 7230 1651 1651 22.84% 22.84%
D 7229 7229 92 92 1.27% 1.27%

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 8 230 971900 4908.14 786 762 197.9
A 13 248 83125 416.26 786 762 197.9
A 2 143 56937 283.91 786 762 197.9
B 10 128 1710692 10508.79 756 727 162.7
B 6 255 872438 5357.2 756 727 162.7
B 8 234 272288 1668.91 756 727 162.7
C 15 148 4187720 23307.77 653 647 179.6
C 6 223 767647 4269.58 653 647 179.6
C 6 13 81218 448.51 653 647 179.6
D 3 12 272823 1241.33 776 741 219.2
D 2 31 259805 1181.93 776 741 219.2
D 12 110 196340 892.39 776 741 219.2

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