ASTROSAT CZTI

Data Quality Report

Orbit 45043

Creation date: 2024-06-27T23:09:19.492986
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/AS1A13_020T01_9000006040_45043cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45043cztM0_level2_quad_clean.evt
Size (bytes)700,050,240105,880,320
Size667.6 MB 101.0 MB
Events in quadrant A5,860,047741,765
Events in quadrant B4,686,020732,217
Events in quadrant C3,544,447756,252
Events in quadrant D11,271,220479,809

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226251
B0187251
C0157211
D0385451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71233695.180402%
B71245978.380124%
C71241672.344189%
D7124257036.075239%

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 7288 7125 31 31 0.43% 0.44%
B 7289 7126 190 190 2.61% 2.67%
C 7289 7126 67 67 0.92% 0.94%
D 7289 7126 1976 1976 27.11% 27.73%

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 10 83 2460571 14231.8 823 804 172.8
A 13 248 127968 735.75 823 804 172.8
A 0 243 36296 205.35 823 804 172.8
B 0 189 800202 4971.42 804 778 160.8
B 0 190 179234 1109.77 804 778 160.8
B 12 48 178741 1106.71 804 778 160.8
C 14 254 262624 1361.14 811 815 192.3
C 1 3 62893 322.74 811 815 192.3
C 12 2 42554 217.0 811 815 192.3
D 13 174 3255650 17783.64 707 683 183.0
D 5 235 2205670 12047.03 707 683 183.0
D 1 52 800618 4370.48 707 683 183.0

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