ASTROSAT CZTI

Data Quality Report

Orbit 13328

Creation date: 2024-06-27T16:39:11.224838
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/AS1A04_101T01_9000001984_13328cztM0_level2.evt modeM0/AS1A04_101T01_9000001984_13328cztM0_level2_quad_clean.evt
Size (bytes)475,741,44066,283,200
Size453.7 MB 63.2 MB
Events in quadrant A3,342,168389,821
Events in quadrant B3,616,157398,722
Events in quadrant C3,251,093389,444
Events in quadrant D3,752,059370,526

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141773
B0149382
C0139032
D0156332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6570650.989346%
B65701201.826484%
C6570440.669711%
D6570941.430746%

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 7751 6572 1 1 0.01% 0.02%
B 7751 6572 23 23 0.30% 0.35%
C 7751 6572 0 0 0.00% 0.00%
D 7751 6572 24 24 0.31% 0.37%

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 1 162 19253 106.65 855 840 172.6
A 15 69 11957 64.39 855 840 172.6
A 0 226 7757 40.06 855 840 172.6
B 4 142 174818 1082.04 855 834 160.8
B 3 209 28427 171.61 855 834 160.8
B 4 216 26665 160.65 855 834 160.8
C 13 61 6095 27.32 831 837 192.5
C 15 208 5588 24.68 831 837 192.5
C 3 233 3886 15.84 831 837 192.5
D 1 52 254616 1281.78 825 802 198.0
D 5 222 147482 740.75 825 802 198.0
D 2 136 89588 448.38 825 802 198.0

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