ASTROSAT CZTI

Data Quality Report

Orbit 44255

Creation date: 2024-06-27T23:01:03.645645
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/AS1A13_080T05_9000005980_44255cztM0_level2.fits modeM0/AS1A13_080T05_9000005980_44255cztM0_level2_quad_clean.evt
Size (bytes)229,979,52056,828,160
Size219.3 MB 54.2 MB
Events in quadrant A2,371,772383,822
Events in quadrant B2,169,561394,205
Events in quadrant C1,529,702375,176
Events in quadrant D2,191,665340,031

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094781
B086701
C067491
D086961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32031213.777708%
B32031474.589447%
C3203351.092726%
D3203952.965969%

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 4358 3204 4 4 0.09% 0.12%
B 4358 3204 65 65 1.49% 2.03%
C 4358 3204 1 1 0.02% 0.03%
D 4358 3204 65 65 1.49% 2.03%

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 811887 9960.25 387 380 81.5
A 7 3 29038 351.74 387 380 81.5
A 15 223 16939 203.24 387 380 81.5
B 15 36 376408 5034.8 381 371 74.7
B 4 158 87516 1166.79 381 371 74.7
B 0 155 56060 745.63 381 371 74.7
C 14 254 44164 493.03 375 377 88.8
C 3 233 18068 199.2 375 377 88.8
C 2 14 3342 33.39 375 377 88.8
D 8 128 222678 2339.11 374 361 95.0
D 1 52 125178 1313.26 374 361 95.0
D 5 235 111686 1171.31 374 361 95.0

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