ASTROSAT CZTI

Data Quality Report

Orbit 56062

Creation date: 2026-02-09T13:00:53.750912
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_083T03_9000006548_56062cztM0_level2.fits modeM0/AS1A14_083T03_9000006548_56062cztM0_level2_quad_clean.evt
Size (bytes)454,253,760114,114,240
Size433.2 MB 108.8 MB
Events in quadrant A3,969,650740,694
Events in quadrant B4,496,147790,276
Events in quadrant C3,695,392703,986
Events in quadrant D4,024,962658,098

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181571
B0192100
C0174220
D0182710

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8085690.853432%
B80852052.535560%
C8085580.717378%
D8086430.531783%

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 8085 8085 51 51 0.63% 0.63%
B 8085 8085 121 121 1.50% 1.50%
C 8085 8085 47 47 0.58% 0.58%
D 8086 8086 40 40 0.49% 0.49%

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 7 14 287136 1347.89 852 831 212.4
A 15 32 207144 971.3 852 831 212.4
A 0 8 63939 297.1 852 831 212.4
B 2 249 446951 2465.26 846 816 181.0
B 0 213 196716 1082.51 846 816 181.0
B 10 247 153413 843.22 846 816 181.0
C 6 223 120762 526.08 834 826 228.0
C 15 230 117059 509.84 834 826 228.0
C 12 252 86374 375.24 834 826 228.0
D 6 42 226220 974.22 823 786 231.4
D 11 129 79001 338.01 823 786 231.4
D 8 245 77983 333.61 823 786 231.4

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