ASTROSAT CZTI

Data Quality Report

Orbit 13184

Creation date: 2024-06-27T16:37:27.935567
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_012T06_9000001956_13184cztM0_level2.evt modeM0/AS1T02_012T06_9000001956_13184cztM0_level2_quad_clean.evt
Size (bytes)412,456,32054,786,240
Size393.3 MB 52.2 MB
Events in quadrant A2,261,590353,152
Events in quadrant B5,349,443288,047
Events in quadrant C2,160,744356,675
Events in quadrant D2,403,851335,539

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A097621
B0190161
C095501
D0104341

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4625410.886486%
B4625206444.627027%
C4625270.583784%
D4625551.189189%

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 5866 4627 8 8 0.14% 0.17%
B 5866 4627 975 975 16.62% 21.07%
C 5866 4627 0 0 0.00% 0.00%
D 5866 4627 17 17 0.29% 0.37%

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 12 189 50181 439.97 557 546 112.8
A 4 2 39439 344.75 557 546 112.8
A 1 162 8956 74.55 557 546 112.8
B 4 239 3815249 52738.08 377 369 72.3
B 0 214 18039 244.28 377 369 72.3
B 0 189 12968 174.17 377 369 72.3
C 15 208 11023 82.12 550 553 127.5
C 13 61 3937 26.54 550 553 127.5
C 14 234 3760 25.15 550 553 127.5
D 13 122 211659 1627.79 541 526 129.7
D 1 52 50796 387.57 541 526 129.7
D 14 34 34306 260.44 541 526 129.7

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