ASTROSAT CZTI

Data Quality Report

Orbit 05846

Creation date: 2024-06-27T14:59:55.592049
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/AS1G06_039T01_9000000758_05846cztM0_level2.evt modeM0/AS1G06_039T01_9000000758_05846cztM0_level2_quad_clean.evt
Size (bytes)425,430,720111,818,880
Size405.7 MB 106.6 MB
Events in quadrant A2,930,347740,325
Events in quadrant B3,095,228749,945
Events in quadrant C2,904,484739,409
Events in quadrant D3,501,769693,399

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135033
B0138102
C0135022
D0151572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6646140.210653%
B6646270.406259%
C6646110.165513%
D6646871.309058%

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 7881 6647 0 0 0.00% 0.00%
B 7881 6647 1 1 0.01% 0.02%
C 7881 6647 0 0 0.00% 0.00%
D 7881 6647 52 52 0.66% 0.78%

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 12 194 7437 43.58 759 743 153.6
A 0 226 7390 43.27 759 743 153.6
A 13 254 3327 16.82 759 743 153.6
B 15 204 44514 299.93 775 757 145.9
B 15 85 23627 156.76 775 757 145.9
B 0 214 22664 150.16 775 757 145.9
C 13 61 6132 31.56 742 745 170.7
C 14 67 3127 13.95 742 745 170.7
C 1 16 2863 12.41 742 745 170.7
D 1 239 455072 2569.99 726 704 176.8
D 12 110 152429 858.19 726 704 176.8
D 8 195 39315 218.39 726 704 176.8

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