ASTROSAT CZTI

Data Quality Report

Orbit 46646

Creation date: 2024-06-27T23:25:50.363150
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_039T01_9000006246_46646cztM0_level2.fits modeM0/AS1A13_039T01_9000006246_46646cztM0_level2_quad_clean.evt
Size (bytes)42,148,80010,627,200
Size40.2 MB 10.1 MB
Events in quadrant A563,82764,712
Events in quadrant B325,77772,935
Events in quadrant C281,02071,716
Events in quadrant D337,40461,516

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02468363
B01531131
C01415120
D01603187

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0131
C0140
D0142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59600.000000%
B63730.470958%
C64200.000000%
D62491.442308%

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 710 675 0 0 0.00% 0.00%
B 716 693 2 2 0.28% 0.29%
C 714 694 0 0 0.00% 0.00%
D 716 693 4 4 0.56% 0.58%

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 314042 20393.0 62 61 15.4
A 0 243 3994 255.45 62 61 15.4
A 13 6 1030 62.94 62 61 15.4
B 5 172 18225 1186.68 68 67 15.3
B 0 189 10866 705.75 68 67 15.3
B 0 190 8219 532.76 68 67 15.3
C 14 254 2786 145.84 69 70 18.6
C 12 2 2182 113.41 69 70 18.6
C 12 250 1987 102.94 69 70 18.6
D 2 249 33887 1794.71 66 63 18.8
D 1 52 30802 1631.02 66 63 18.8
D 12 128 5683 298.2 66 63 18.8

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