ASTROSAT CZTI

Data Quality Report

Orbit 01071

Creation date: 2024-06-27T14:07:00.155125
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/AS1P01_998T02_9000000190_01071cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01071cztM0_level2_quad_clean.evt
Size (bytes)57,188,1607,099,200
Size54.5 MB 6.8 MB
Events in quadrant A460,06546,030
Events in quadrant B454,42646,397
Events in quadrant C410,78344,100
Events in quadrant D378,13243,502

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016330
B016160
C014870
D013880

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37300.000000%
B37300.000000%
C37300.000000%
D37300.000000%

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 373 373 6 6 1.61% 1.61%
B 373 373 4 4 1.07% 1.07%
C 373 373 0 0 0.00% 0.00%
D 373 373 0 0 0.00% 0.00%

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 0 253 436 10.31 119 120 30.7
A 3 111 407 9.36 119 120 30.7
A 14 203 311 6.23 119 120 30.7
B 12 52 1339 40.5 118 119 30.1
B 8 219 1174 35.02 118 119 30.1
B 8 234 782 22.01 118 119 30.1
C 15 241 18276 623.96 99 103 29.1
C 3 111 943 28.84 99 103 29.1
C 3 79 344 8.27 99 103 29.1
D 2 216 1448 40.4 100 100 33.4
D 13 138 429 9.86 100 100 33.4
D -1 -1 -1 -1.0 100 100 33.4

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