ASTROSAT CZTI

Data Quality Report

Orbit 43374

Creation date: 2024-06-27T22:51:11.893133
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/AS1A09_143T01_9000005870_43374cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43374cztM0_level2_quad_clean.evt
Size (bytes)281,111,04086,244,480
Size268.1 MB 82.2 MB
Events in quadrant A2,986,671571,286
Events in quadrant B2,288,898597,920
Events in quadrant C2,379,742569,474
Events in quadrant D2,352,802515,277

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121072
B0103822
C0103862
D0110112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5096691.354003%
B5096120.235479%
C509590.176644%
D5095470.922473%

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 7218 5097 56 56 0.78% 1.10%
B 7218 5097 5 5 0.07% 0.10%
C 7217 5096 2 2 0.03% 0.04%
D 7217 5096 48 48 0.67% 0.94%

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 556865 4932.58 546 535 112.8
A 13 248 250376 2215.16 546 535 112.8
A 15 237 50583 443.74 546 535 112.8
B 3 112 38919 362.69 550 536 105.8
B 5 255 31135 289.13 550 536 105.8
B 0 189 30461 282.76 550 536 105.8
C 15 214 210448 1701.43 534 538 123.4
C 3 233 35299 281.76 534 538 123.4
C 15 111 35188 280.86 534 538 123.4
D 13 249 82586 643.34 525 510 127.6
D 5 32 61786 480.3 525 510 127.6
D 12 6 54317 421.76 525 510 127.6

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