ASTROSAT CZTI

Data Quality Report

Orbit 10556

Creation date: 2024-06-27T16:00:39.820656
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_107T01_9000001530_10556cztM0_level2.evt modeM0/AS1A03_107T01_9000001530_10556cztM0_level2_quad_clean.evt
Size (bytes)394,485,12060,062,400
Size376.2 MB 57.3 MB
Events in quadrant A2,513,360370,907
Events in quadrant B3,107,716368,764
Events in quadrant C2,411,947370,796
Events in quadrant D3,561,655345,578

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109351
B0126071
C0108971
D0137541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51652424.685382%
B51653827.395934%
C51651993.852856%
D51654578.848015%

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 5330 5167 1 1 0.02% 0.02%
B 5330 5167 78 78 1.46% 1.51%
C 5330 5167 0 0 0.00% 0.00%
D 5330 5167 185 185 3.47% 3.58%

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 1 162 32347 240.89 633 616 131.7
A 8 5 13432 97.29 633 616 131.7
A 1 161 7843 54.86 633 616 131.7
B 4 239 577962 4624.95 628 612 124.8
B 0 214 29762 233.51 628 612 124.8
B 11 51 24348 190.14 628 612 124.8
C 13 61 4624 27.38 617 617 146.3
C 4 175 3173 17.47 617 617 146.3
C 1 3 1855 8.46 617 617 146.3
D 1 52 657786 4491.62 593 575 146.3
D 8 195 351764 2400.16 593 575 146.3
D 2 16 163948 1116.55 593 575 146.3

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