ASTROSAT CZTI

Data Quality Report

Orbit 48708

Creation date: 2024-09-30T09:34:50.687455
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_037T01_9000006436_48708cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48708cztM0_level2_quad_clean.evt
Size (bytes)443,018,880107,665,920
Size422.5 MB 102.7 MB
Events in quadrant A6,940,087690,059
Events in quadrant B3,147,593750,917
Events in quadrant C2,853,660723,619
Events in quadrant D2,963,793651,967

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248462
B0139202
C0131152
D0135952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63613815.989624%
B6361891.399151%
C6361200.314416%
D6361510.801761%

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 7596 6362 207 207 2.73% 3.25%
B 7596 6362 17 17 0.22% 0.27%
C 7596 6362 0 0 0.00% 0.00%
D 7596 6362 29 29 0.38% 0.46%

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 4028047 27598.53 703 687 145.9
A 13 248 169265 1155.22 703 687 145.9
A 7 3 24257 161.52 703 687 145.9
B 12 16 239928 1708.66 717 694 140.0
B 10 7 32327 225.93 717 694 140.0
B 5 171 19485 134.21 717 694 140.0
C 3 233 44026 256.26 714 719 169.0
C 12 2 10984 60.74 714 719 169.0
C 14 254 6960 36.93 714 719 169.0
D 2 249 174076 996.01 702 680 174.1
D 5 32 40300 227.58 702 680 174.1
D 2 234 30600 171.87 702 680 174.1

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