ASTROSAT CZTI

Data Quality Report

Orbit 47473

Creation date: 2024-07-09T09:03:11.927190
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_089T01_9000006330_47473cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47473cztM0_level2_quad_clean.evt
Size (bytes)643,559,040100,275,840
Size613.7 MB 95.6 MB
Events in quadrant A7,331,840699,710
Events in quadrant B3,217,513738,421
Events in quadrant C3,107,335704,654
Events in quadrant D9,675,187450,658

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264655
B0138101
C0135911
D0330141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63393655.758006%
B6340851.340694%
C6340711.119874%
D6340223835.299685%

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 7459 6340 104 104 1.39% 1.64%
B 7460 6341 6 6 0.08% 0.09%
C 7460 6341 7 7 0.09% 0.11%
D 7460 6341 2100 2100 28.15% 33.12%

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 3894298 25804.76 722 707 150.9
A 9 191 551154 3648.08 722 707 150.9
A 13 248 70874 465.03 722 707 150.9
B 5 32 132972 926.27 731 707 142.8
B 0 198 119072 828.92 731 707 142.8
B 0 200 36913 253.55 731 707 142.8
C 3 233 203072 1182.21 722 725 171.2
C 1 3 24801 140.66 722 725 171.2
C 6 247 19589 110.21 722 725 171.2
D 6 112 5028960 30471.84 647 627 165.0
D 11 192 930775 5636.72 647 627 165.0
D 14 34 533956 3231.99 647 627 165.0

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