ASTROSAT CZTI

Data Quality Report

Orbit 28043

Creation date: 2024-06-27T19:47:25.999177
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_048T02_9000004050_28043cztM0_level2.evt modeM0/AS1A10_048T02_9000004050_28043cztM0_level2_quad_clean.evt
Size (bytes)146,174,40038,347,200
Size139.4 MB 36.6 MB
Events in quadrant A897,823263,814
Events in quadrant B937,568260,574
Events in quadrant C884,345247,264
Events in quadrant D1,567,232242,358

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040470
B041510
C040540
D060690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A201510.049628%
B201620.099206%
C201630.148810%
D2016683.373016%

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 2015 2015 0 0 0.00% 0.00%
B 2016 2016 0 0 0.00% 0.00%
C 2016 2016 0 0 0.00% 0.00%
D 2016 2016 56 56 2.78% 2.78%

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 3737 71.63 231 228 49.0
A 13 254 3065 57.91 231 228 49.0
A 3 137 2197 40.2 231 228 49.0
B 4 200 23996 516.85 227 222 46.0
B 10 245 7967 168.38 227 222 46.0
B 0 183 5667 118.38 227 222 46.0
C 14 238 34397 658.3 213 214 51.9
C 3 233 10797 203.81 213 214 51.9
C 10 22 7357 137.56 213 214 51.9
D 8 195 349302 6475.06 215 209 53.9
D 1 52 256579 4755.21 215 209 53.9
D 7 80 125307 2320.35 215 209 53.9

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