ASTROSAT CZTI

Data Quality Report

Orbit 42449

Creation date: 2024-06-27T22:40:19.581864
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/AS1C07_001T10_9000005806_42449cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42449cztM0_level2_quad_clean.evt
Size (bytes)521,487,36078,923,520
Size497.3 MB 75.3 MB
Events in quadrant A2,842,991592,634
Events in quadrant B6,249,289398,239
Events in quadrant C2,613,288573,517
Events in quadrant D7,175,269444,249

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117971
B0224941
C0113401
D0251391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A543790.165532%
B5437182633.584697%
C543750.091962%
D5438118021.699154%

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 7019 5438 3 3 0.04% 0.06%
B 7019 5438 1523 1523 21.70% 28.01%
C 7019 5438 0 0 0.00% 0.00%
D 7020 5439 1195 1195 17.02% 21.97%

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 10 83 573953 4938.24 566 552 116.1
A 12 189 48917 416.53 566 552 116.1
A 14 223 11179 91.52 566 552 116.1
B 0 186 4118510 45204.88 469 456 91.1
B 3 112 129799 1419.83 469 456 91.1
B 5 255 73123 797.68 469 456 91.1
C 15 214 227092 1752.37 554 557 129.3
C 10 34 201413 1553.73 554 557 129.3
C 15 111 10380 75.99 554 557 129.3
D 1 52 4257641 33666.53 513 497 126.5
D 2 16 360827 2849.58 513 497 126.5
D 13 171 279978 2210.2 513 497 126.5

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