ASTROSAT CZTI

Data Quality Report

Orbit 15336

Creation date: 2024-06-27T17:07:03.895334
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/AS1T02_073T01_9000002260_15336cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15336cztM0_level2_quad_clean.evt
Size (bytes)969,261,120157,464,000
Size924.4 MB 150.2 MB
Events in quadrant A6,194,598981,906
Events in quadrant B6,919,886991,614
Events in quadrant C6,767,016981,239
Events in quadrant D8,561,380883,305

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02760
B02760
C02760
D02760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274854
B0292893
C0284173
D0353093

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134602111.567608%
B134603562.644874%
C134601280.950966%
D134609507.057949%

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 15106 13463 0 0 0.00% 0.00%
B 15106 13461 70 70 0.46% 0.52%
C 15106 13463 1 1 0.01% 0.01%
D 15106 13462 705 705 4.67% 5.24%

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 9 143 22037 63.62 1600 1562 321.8
A 0 226 13850 38.18 1600 1562 321.8
A 4 2 13006 35.56 1600 1562 321.8
B 10 16 639588 2060.77 1596 1553 309.6
B 12 111 38307 118.71 1596 1553 309.6
B 11 111 33451 103.03 1596 1553 309.6
C 3 233 657720 1804.13 1564 1574 363.7
C 13 61 11048 26.05 1564 1574 363.7
C 15 127 8176 18.15 1564 1574 363.7
D 13 122 2620855 7144.1 1508 1465 366.7
D 2 14 165382 447.06 1508 1465 366.7
D 2 234 42244 111.22 1508 1465 366.7

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