ASTROSAT CZTI

Data Quality Report

Orbit 20240721_A13_082T01_9000006342_level2

Creation date: 2024-07-25T12:36:02.230408
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_082T01_9000006342cztM0_level2.fits modeM0/AS1A13_082T01_9000006342cztM0_level2_quad_clean.evt
Size (bytes)1,831,919,0401,749,625,920
Size1.7 GB 1.6 GB
Events in quadrant A10,628,0289,995,995
Events in quadrant B10,528,93010,292,880
Events in quadrant C10,923,8929,815,724
Events in quadrant D9,379,3148,871,082

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07805960
B04476560
C04267290
D04906660

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041600
B041600
C041620
D041590

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02650
B02660
C02660
D02660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20452892164.505985%
B20454845572.227839%
C20455719170.937147%
D20455155142.695660%

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 233435 204548 0 0 0.00% 0.00%
B 233435 204568 0 0 0.00% 0.00%
C 233435 204541 0 0 0.00% 0.00%
D 233435 204550 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 7 110 8762 8.72 2775 2580 708.5
A 0 29 7862 7.45 2775 2580 708.5
A 7 30 7802 7.37 2775 2580 708.5
B 2 9 10172 13.61 2779 2634 553.8
B 2 8 8117 9.9 2779 2634 553.8
B 3 17 7567 8.91 2779 2634 553.8
C 3 202 8161 7.35 2886 2667 747.2
C 1 81 8110 7.28 2886 2667 747.2
C 1 80 7991 7.13 2886 2667 747.2
D 3 14 6949 6.05 2694 2439 745.6
D 10 189 6836 5.9 2694 2439 745.6
D 3 31 6766 5.8 2694 2439 745.6

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