ASTROSAT CZTI

Data Quality Report

Orbit 32682

Creation date: 2024-06-27T20:40:45.028338
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_057T03_9000004722_32682cztM0_level2.evt modeM0/AS1A10_057T03_9000004722_32682cztM0_level2_quad_clean.evt
Size (bytes)543,568,32080,519,040
Size518.4 MB 76.8 MB
Events in quadrant A2,540,505537,733
Events in quadrant B3,062,555541,006
Events in quadrant C3,042,232530,572
Events in quadrant D7,454,478454,312

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110143
B0125442
C0123712
D0258062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A535090.168224%
B5350651.214953%
C5350791.476636%
D5350160329.962617%

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 7143 5351 2 2 0.03% 0.04%
B 7143 5351 38 38 0.53% 0.71%
C 7143 5351 71 71 0.99% 1.33%
D 7143 5351 1404 1404 19.66% 26.24%

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 15 249 33089 258.63 627 616 125.6
A 0 191 20511 158.45 627 616 125.6
A 14 63 16645 127.66 627 616 125.6
B 3 26 140703 1168.03 632 620 119.9
B 0 199 97706 809.52 632 620 119.9
B 0 219 87027 720.47 632 620 119.9
C 0 10 298764 2143.94 603 608 139.1
C 3 233 153873 1102.08 603 608 139.1
C 9 236 69277 493.78 603 608 139.1
D 7 80 2080798 16799.02 519 508 123.8
D 7 38 1311143 10583.81 519 508 123.8
D 2 249 666881 5381.18 519 508 123.8

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