ASTROSAT CZTI

Data Quality Report

Orbit 05412

Creation date: 2024-06-27T14:54:53.756673
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/AS1G05_214T01_9000000684_05412cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05412cztM0_level2_quad_clean.evt
Size (bytes)523,604,16068,958,720
Size499.3 MB 65.8 MB
Events in quadrant A2,934,583431,552
Events in quadrant B3,326,502433,733
Events in quadrant C2,862,970426,069
Events in quadrant D6,335,423385,835

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125892
B0137731
C0123811
D0229091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5882771.309079%
B5882911.547093%
C5882490.833050%
D58823716.307378%

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 7177 5883 28 28 0.39% 0.48%
B 7177 5883 31 31 0.43% 0.53%
C 7177 5883 5 5 0.07% 0.08%
D 7177 5883 250 250 3.48% 4.25%

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 50 124196 851.27 713 700 145.1
A 15 174 31920 215.2 713 700 145.1
A 13 6 27722 186.26 713 700 145.1
B 15 204 328169 2402.11 720 704 136.3
B 10 16 100409 731.38 720 704 136.3
B 15 54 23499 167.21 720 704 136.3
C 1 16 123827 766.6 690 695 160.6
C 9 247 28752 174.68 690 695 160.6
C 14 67 15076 89.53 690 695 160.6
D 2 63 3475800 20780.18 673 651 167.2
D 2 33 136738 813.75 673 651 167.2
D 4 95 64257 380.34 673 651 167.2

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