ASTROSAT CZTI

Data Quality Report

Orbit 32393

Creation date: 2024-06-27T20:39:41.267342
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/AS1T04_059T01_9000004704_32393cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32393cztM0_level2_quad_clean.evt
Size (bytes)648,244,80079,588,800
Size618.2 MB 75.9 MB
Events in quadrant A2,799,983549,285
Events in quadrant B9,577,539439,793
Events in quadrant C3,135,441517,958
Events in quadrant D3,737,939507,888

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119492
B0323441
C0127551
D0148771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5640360.638298%
B5640238942.358156%
C56401422.517730%
D5640981.737589%

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 6850 5641 0 0 0.00% 0.00%
B 6850 5641 1878 1878 27.42% 33.29%
C 6850 5641 21 21 0.31% 0.37%
D 6850 5641 70 70 1.02% 1.24%

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 13 6 12740 83.33 719 707 144.4
A 13 254 10627 68.69 719 707 144.4
A 3 137 6868 42.66 719 707 144.4
B 4 80 4155815 34952.34 626 612 118.9
B 6 159 1442061 12125.04 626 612 118.9
B 10 245 700498 5887.23 626 612 118.9
C 0 10 216632 1387.17 669 674 155.7
C 3 233 123656 789.95 669 674 155.7
C 14 238 118321 755.68 669 674 155.7
D 8 195 797789 4901.27 680 663 162.6
D 13 249 135168 827.03 680 663 162.6
D 1 47 114217 698.21 680 663 162.6

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