ASTROSAT CZTI

Data Quality Report

Orbit 06374

Creation date: 2024-06-27T15:06:19.831582
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/AS1A02_124T01_9000000842_06374cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06374cztM0_level2_quad_clean.evt
Size (bytes)398,839,68082,771,200
Size380.4 MB 78.9 MB
Events in quadrant A2,789,385523,092
Events in quadrant B2,998,951526,292
Events in quadrant C2,795,234515,437
Events in quadrant D3,065,358500,772

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129232
B0133411
C0129421
D0137601

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6318390.617284%
B6318620.981323%
C6318160.253245%
D6318500.791390%

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 6548 6320 0 0 0.00% 0.00%
B 6548 6320 7 7 0.11% 0.11%
C 6548 6320 0 0 0.00% 0.00%
D 6548 6320 37 37 0.57% 0.59%

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 8 15 14211 92.36 714 698 146.3
A 15 174 9920 63.03 714 698 146.3
A 3 1 7623 47.33 714 698 146.3
B 0 219 83590 596.14 722 703 139.0
B 4 81 53347 378.62 722 703 139.0
B 0 229 37795 266.77 722 703 139.0
C 4 254 44877 269.65 699 702 163.8
C 8 128 9114 51.35 699 702 163.8
C 13 61 5614 29.98 699 702 163.8
D 2 152 250488 1478.94 693 672 168.9
D 11 241 59842 350.29 693 672 168.9
D 2 14 58670 343.35 693 672 168.9

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