ASTROSAT CZTI

Data Quality Report

Orbit 20220926_C07_001T12_9000005352_level2

Creation date: 2022-10-22T11:54:54.017228
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/AS1C07_001T12_9000005352cztM0_level2.fits modeM0/AS1C07_001T12_9000005352cztM0_level2_quad_clean.evt
Size (bytes)2,517,825,6003,035,280,960
Size2.3 GB 2.8 GB
Events in quadrant A15,433,57019,696,416
Events in quadrant B14,591,88219,318,761
Events in quadrant C14,854,32418,391,158
Events in quadrant D12,397,77415,563,127

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010140
B010140
C010140
D010140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05936620
B06370820
C05849940
D08618340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056630
B056640
C056640
D056640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27686814440.521548%
B27686858392.108947%
C27686715500.559836%
D276868257289.292515%

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 389329 276800 0 0 0.00% 0.00%
B 389329 276797 0 0 0.00% 0.00%
C 389329 276843 0 0 0.00% 0.00%
D 389329 276027 0 0 0.00% 0.00%

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 9 19 12688 9.05 4042 3813 980.5
A 7 110 12593 8.95 4042 3813 980.5
A 0 29 12551 8.91 4042 3813 980.5
B 2 9 12596 11.94 3869 3715 743.7
B 3 80 11478 10.44 3869 3715 743.7
B 2 8 10310 8.87 3869 3715 743.7
C 1 81 12491 8.85 3931 3701 992.9
C 1 80 11960 8.32 3931 3701 992.9
C 3 203 11836 8.19 3931 3701 992.9
D 4 160 9204 6.29 3557 3235 949.3
D 7 3 9126 6.2 3557 3235 949.3
D 10 189 8929 6.0 3557 3235 949.3

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