ASTROSAT CZTI

Data Quality Report

Orbit 09910

Creation date: 2024-06-27T15:52:22.921101
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/AS1A03_053T01_9000001410_09910cztM0_level2.evt modeM0/AS1A03_053T01_9000001410_09910cztM0_level2_quad_clean.evt
Size (bytes)2,669,765,760447,906,240
Size2.5 GB 427.2 MB
Events in quadrant A18,141,7152,805,215
Events in quadrant B18,392,9992,844,969
Events in quadrant C15,937,4732,834,219
Events in quadrant D25,981,2672,636,825

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07240
B07240
C07242
D07240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07792680
B07821698
C07267972
D0101280224

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A355976901.938366%
B355936971.958250%
C355983671.030957%
D3557913443.777509%

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 39325 35633 177 177 0.45% 0.50%
B 39325 35634 108 108 0.27% 0.30%
C 39325 35634 1 1 0.00% 0.00%
D 39325 35624 1039 1039 2.64% 2.92%

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 15 239 1862222 2179.87 4182 4090 852.4
A 15 174 87895 98.32 4182 4090 852.4
A 13 251 50399 54.33 4182 4090 852.4
B 4 81 999728 1234.38 4203 4100 806.6
B 4 239 329272 403.15 4203 4100 806.6
B 0 214 303098 370.7 4203 4100 806.6
C 13 61 30695 28.23 4071 4089 942.4
C 14 67 29119 26.56 4071 4089 942.4
C 1 3 18699 15.5 4071 4089 942.4
D 8 195 3726385 3847.34 4000 3906 967.5
D 2 16 2558174 2639.95 4000 3906 967.5
D 1 52 1744512 1798.99 4000 3906 967.5

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