ASTROSAT CZTI

Data Quality Report

Orbit 38337

Creation date: 2024-06-27T21:51:26.797033
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/AS1A10_094T24_9000005374_38337cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38337cztM0_level2_quad_clean.evt
Size (bytes)507,358,08096,062,400
Size483.9 MB 91.6 MB
Events in quadrant A3,251,291657,972
Events in quadrant B3,051,569679,382
Events in quadrant C2,895,798652,069
Events in quadrant D9,118,164501,186

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132903
B0131772
C0122852
D0311852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5981601.003177%
B5981310.518308%
C5981130.217355%
D5981123120.581843%

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 7264 5982 44 44 0.61% 0.74%
B 7264 5982 12 12 0.17% 0.20%
C 7264 5982 6 6 0.08% 0.10%
D 7264 5982 1241 1241 17.08% 20.75%

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 429539 3222.94 654 640 133.1
A 13 248 213301 1598.03 654 640 133.1
A 12 189 35056 258.62 654 640 133.1
B 0 183 160903 1268.74 658 638 126.3
B 0 229 77459 608.15 658 638 126.3
B 0 186 76474 600.36 658 638 126.3
C 15 214 254923 1671.08 650 655 152.2
C 14 254 47805 309.88 650 655 152.2
C 1 23 39851 257.6 650 655 152.2
D 10 203 4547180 31037.02 601 582 146.5
D 2 16 875437 5972.13 601 582 146.5
D 12 227 777225 5301.7 601 582 146.5

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