ASTROSAT CZTI

Data Quality Report

Orbit 48159

Creation date: 2024-08-24T11:12:02.428826
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_004T05_9000006408_48159cztM0_level2.fits modeM0/AS1C09_004T05_9000006408_48159cztM0_level2_quad_clean.evt
Size (bytes)134,674,56027,351,360
Size128.4 MB 26.1 MB
Events in quadrant A2,352,246233,407
Events in quadrant B347,8914,907
Events in quadrant C1,021,693226,375
Events in quadrant D1,098,874213,398

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085681
B021561
C044741
D046501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20521919.307992%
B20522052100.000000%
C2052291.413255%
D2052271.315789%

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 2872 2054 25 25 0.87% 1.22%
B 2871 2046 0 0 0.00% 0.00%
C 2872 2054 9 9 0.31% 0.44%
D 2872 2054 5 5 0.17% 0.24%

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 10 83 1410607 27330.91 237 231 51.6
A 0 243 9289 175.53 237 231 51.6
A 10 255 4594 84.55 237 231 51.6
B 2 177 283011 56462.76 15 15 5.0
B 4 21 1814 358.93 15 15 5.0
B 4 171 592 115.12 15 15 5.0
C 12 2 67054 1122.65 243 241 59.5
C 14 254 3666 57.55 243 241 59.5
C 13 61 1602 22.87 243 241 59.5
D 7 67 102447 1623.01 245 237 63.0
D 12 2 21329 334.92 245 237 63.0
D 2 165 15943 249.4 245 237 63.0

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