ASTROSAT CZTI

Data Quality Report

Orbit 47361

Creation date: 2024-07-01T08:41:28.223181
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_093T17_9000006322_47361cztM0_level2.fits modeM0/AS1A13_093T17_9000006322_47361cztM0_level2_quad_clean.evt
Size (bytes)514,419,840109,823,040
Size490.6 MB 104.7 MB
Events in quadrant A7,134,131711,003
Events in quadrant B3,683,908753,093
Events in quadrant C3,683,373728,311
Events in quadrant D4,018,693663,884

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257092
B0155972
C0156262
D0168012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67313965.883227%
B67311762.614767%
C67311151.708513%
D67311462.169068%

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 7686 6732 100 100 1.30% 1.49%
B 7686 6732 21 21 0.27% 0.31%
C 7686 6732 73 73 0.95% 1.08%
D 7686 6732 108 108 1.41% 1.60%

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 3738294 23659.77 753 735 158.0
A 9 191 239060 1508.66 753 735 158.0
A 15 235 196431 1238.81 753 735 158.0
B 0 186 374349 2453.02 768 745 152.3
B 5 255 85858 558.84 768 745 152.3
B 14 167 50662 327.75 768 745 152.3
C 0 207 555599 3080.11 764 767 180.1
C 3 233 83822 461.07 764 767 180.1
C 1 3 37680 204.92 764 767 180.1
D 2 249 540143 2793.29 755 729 193.1
D 2 165 395731 2045.47 755 729 193.1
D 12 128 137178 706.58 755 729 193.1

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