ASTROSAT CZTI

Data Quality Report

Orbit 48056

Creation date: 2024-08-17T05:32:32.587181
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_037T05_9000006392_48056cztM0_level2.fits modeM0/AS1A13_037T05_9000006392_48056cztM0_level2_quad_clean.evt
Size (bytes)518,074,560104,448,960
Size494.1 MB 99.6 MB
Events in quadrant A6,927,057699,903
Events in quadrant B3,296,203745,637
Events in quadrant C3,369,031694,704
Events in quadrant D5,087,971575,132

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252202
B0142142
C0147262
D0196882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64113064.773046%
B6411821.279052%
C64111612.511309%
D641170510.996724%

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 7611 6412 162 162 2.13% 2.53%
B 7611 6412 35 35 0.46% 0.55%
C 7611 6412 111 111 1.46% 1.73%
D 7611 6412 630 630 8.28% 9.83%

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 4099154 27612.12 713 700 148.4
A 0 31 55600 369.87 713 700 148.4
A 0 243 12702 80.86 713 700 148.4
B 5 32 164001 1151.92 725 703 141.8
B 0 200 135278 949.3 725 703 141.8
B 5 255 60244 420.01 725 703 141.8
C 12 2 575076 3493.47 700 705 164.4
C 14 254 29194 173.28 700 705 164.4
C 12 250 13554 78.15 700 705 164.4
D 2 249 1497958 9042.23 657 635 165.6
D 2 165 436477 2632.02 657 635 165.6
D 12 2 215964 1300.36 657 635 165.6

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