ASTROSAT CZTI

Data Quality Report

Orbit 09231

Creation date: 2024-06-27T15:43:00.871205
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/AS1A03_051T01_9000001288_09231cztM0_level2.evt modeM0/AS1A03_051T01_9000001288_09231cztM0_level2_quad_clean.evt
Size (bytes)465,053,76086,685,120
Size443.5 MB 82.7 MB
Events in quadrant A4,196,195549,549
Events in quadrant B3,266,264556,572
Events in quadrant C2,921,235540,139
Events in quadrant D3,263,390529,785

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168306
B0139322
C0131784
D0141752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64361852.874456%
B6437490.761224%
C6436270.419515%
D6437741.149604%

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 7512 6438 88 88 1.17% 1.37%
B 7512 6438 6 6 0.08% 0.09%
C 7512 6438 0 0 0.00% 0.00%
D 7512 6438 30 30 0.40% 0.47%

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 5 931630 5900.89 775 760 157.8
A 1 162 90909 571.46 775 760 157.8
A 13 251 44019 274.22 775 760 157.8
B 0 214 58328 381.9 780 764 150.7
B 0 245 50966 333.06 780 764 150.7
B 4 48 33280 215.72 780 764 150.7
C 13 61 5691 28.4 745 749 174.0
C 3 233 5517 27.4 745 749 174.0
C 14 67 3813 17.61 745 749 174.0
D 1 52 123928 668.88 749 725 184.2
D 7 71 109224 589.05 749 725 184.2
D 12 233 70125 376.78 749 725 184.2

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