ASTROSAT CZTI

Data Quality Report

Orbit 17062

Creation date: 2024-06-27T17:31:30.600956
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/AS1T03_004T01_9000002532_17062cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17062cztM0_level2_quad_clean.evt
Size (bytes)502,269,12093,631,680
Size479.0 MB 89.3 MB
Events in quadrant A3,172,986608,144
Events in quadrant B3,405,373620,377
Events in quadrant C4,695,760573,361
Events in quadrant D3,483,187567,314

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138132
B0144602
C0183622
D0148952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6691490.732327%
B6692761.135684%
C66924015.992230%
D66921782.659892%

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 8812 6694 0 0 0.00% 0.00%
B 8813 6695 1 1 0.01% 0.01%
C 8813 6695 165 165 1.87% 2.46%
D 8813 6695 146 146 1.66% 2.18%

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 12 189 16952 97.77 817 800 165.2
A 4 2 13116 74.55 817 800 165.2
A 0 226 7179 38.61 817 800 165.2
B 6 36 103195 659.51 819 797 155.3
B 0 197 30801 193.25 819 797 155.3
B 0 219 27835 174.14 819 797 155.3
C 3 233 1539902 8503.46 775 779 181.0
C 14 238 118619 651.05 775 779 181.0
C 9 160 8011 39.96 775 779 181.0
D 15 0 256266 1339.66 784 762 190.7
D 1 52 138130 720.25 784 762 190.7
D 5 222 70070 363.4 784 762 190.7

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