ASTROSAT CZTI

Data Quality Report

Orbit 09633

Creation date: 2024-06-27T15:48:40.372800
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_077T01_9000001372_09633cztM0_level2.evt modeM0/AS1A03_077T01_9000001372_09633cztM0_level2_quad_clean.evt
Size (bytes)261,610,56051,422,400
Size249.5 MB 49.0 MB
Events in quadrant A1,847,415324,462
Events in quadrant B1,946,050326,183
Events in quadrant C1,785,477318,306
Events in quadrant D2,071,979308,038

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0904
B0908
C0906
D0908

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08928851
B09170865
C08838898
D098991081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3964240.605449%
B3963220.555135%
C393490.228775%
D3953451.138376%

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 5119 4317 0 0 0.00% 0.00%
B 5119 4334 0 0 0.00% 0.00%
C 5119 4320 0 0 0.00% 0.00%
D 5119 4315 23 23 0.45% 0.53%

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 14 111 7310 68.09 477 466 100.5
A 0 226 4331 38.45 477 466 100.5
A 13 248 3954 34.7 477 466 100.5
B 0 214 41353 432.44 477 465 94.6
B 0 229 13778 140.8 477 465 94.6
B 0 219 12911 131.63 477 465 94.6
C 13 61 3504 28.27 457 460 107.7
C 14 67 1662 11.16 457 460 107.7
C 3 202 1074 5.7 457 460 107.7
D 12 233 84332 748.44 455 443 112.1
D 2 14 69370 614.95 455 443 112.1
D 1 52 45098 398.4 455 443 112.1

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