ASTROSAT CZTI

Data Quality Report

Orbit 47108

Creation date: 2024-06-27T23:31:49.567869
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/AS1C09_003T01_9000006298_47108cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47108cztM0_level2_quad_clean.evt
Size (bytes)491,192,640109,532,160
Size468.4 MB 104.5 MB
Events in quadrant A6,849,828722,275
Events in quadrant B3,433,973752,732
Events in quadrant C3,146,923716,699
Events in quadrant D4,216,278643,873

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248602
B0151052
C0145682
D0177162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68992934.246992%
B6899831.203073%
C6899410.594289%
D68993134.536889%

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 7874 6900 119 119 1.51% 1.72%
B 7874 6900 28 28 0.36% 0.41%
C 7874 6900 14 14 0.18% 0.20%
D 7874 6900 229 229 2.91% 3.32%

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 3906632 25388.91 742 726 153.8
A 7 3 24109 151.99 742 726 153.8
A 9 191 15733 97.55 742 726 153.8
B 0 190 139278 937.67 751 728 147.8
B 5 32 107367 721.7 751 728 147.8
B 4 21 57997 387.58 751 728 147.8
C 14 254 142257 820.23 736 738 172.5
C 12 2 111674 642.98 736 738 172.5
C 3 233 7872 41.35 736 738 172.5
D 2 249 641681 3495.79 723 698 183.4
D 1 47 275186 1497.0 723 698 183.4
D 8 48 166611 904.86 723 698 183.4

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