ASTROSAT CZTI

Data Quality Report

Orbit 22317

Creation date: 2024-06-27T18:39:22.720077
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/AS1A07_149T01_9000003304_22317cztM0_level2.evt modeM0/AS1A07_149T01_9000003304_22317cztM0_level2_quad_clean.evt
Size (bytes)446,783,040109,702,080
Size426.1 MB 104.6 MB
Events in quadrant A3,132,427726,891
Events in quadrant B3,218,976752,159
Events in quadrant C3,190,028704,308
Events in quadrant D3,536,755674,985

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137622
B0138892
C0137423
D0151272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6655290.435763%
B6655390.586026%
C6654520.781485%
D6654961.442741%

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 7835 6656 0 0 0.00% 0.00%
B 7835 6656 0 0 0.00% 0.00%
C 7834 6655 0 0 0.00% 0.00%
D 7834 6655 68 68 0.87% 1.02%

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 13 254 9870 55.64 812 797 163.1
A 0 226 7007 38.08 812 797 163.1
A 3 137 6927 37.59 812 797 163.1
B 12 111 18521 115.3 821 801 153.7
B 11 111 16313 100.93 821 801 153.7
B 14 111 14613 89.87 821 801 153.7
C 14 238 127426 691.68 784 789 183.1
C 0 10 7836 38.49 784 789 183.1
C 13 61 5505 25.76 784 789 183.1
D 13 174 317886 1689.48 777 753 187.7
D 1 52 111684 590.97 777 753 187.7
D 12 217 53364 280.28 777 753 187.7

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