ASTROSAT CZTI

Data Quality Report

Orbit 30175

Creation date: 2024-06-27T20:11:51.359164
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/AS1A10_102T01_9000004340_30175cztM0_level2.evt modeM0/AS1A10_102T01_9000004340_30175cztM0_level2_quad_clean.evt
Size (bytes)655,980,48088,369,920
Size625.6 MB 84.3 MB
Events in quadrant A3,229,883575,787
Events in quadrant B4,919,780575,057
Events in quadrant C6,502,063536,780
Events in quadrant D4,767,877526,667

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138901
B0199101
C0241011
D0187011

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6622550.830565%
B6621961.449932%
C66214396.630418%
D66224346.553911%

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 7557 6622 1 1 0.01% 0.02%
B 7556 6621 0 0 0.00% 0.00%
C 7556 6621 52 52 0.69% 0.79%
D 7557 6622 334 334 4.42% 5.04%

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 0 13 74320 449.78 813 796 163.5
A 8 192 13034 74.87 813 796 163.5
A 13 254 11187 63.57 813 796 163.5
B 6 159 1778343 11387.9 800 777 156.1
B 12 111 19506 119.99 800 777 156.1
B 11 111 17971 110.15 800 777 156.1
C 3 233 3308706 18048.5 767 772 183.3
C 14 238 141867 769.83 767 772 183.3
C 14 254 29349 155.92 767 772 183.3
D 1 52 1512607 7997.93 766 748 189.0
D 13 104 155748 819.97 766 748 189.0
D 8 195 141927 746.85 766 748 189.0

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