ASTROSAT CZTI

Data Quality Report

Orbit 44257

Creation date: 2024-06-27T23:01:04.585489
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_44257cztM0_level2.fits modeM0/AS1A13_080T05_9000005980_44257cztM0_level2_quad_clean.evt
Size (bytes)440,913,60098,055,360
Size420.5 MB 93.5 MB
Events in quadrant A5,752,386667,238
Events in quadrant B3,851,955672,116
Events in quadrant C2,805,004645,255
Events in quadrant D3,466,431583,175

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214341
B0153811
C0125841
D0142891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57401923.344948%
B57412624.563665%
C5741260.452883%
D57411091.898624%

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 7005 5741 133 133 1.90% 2.32%
B 7006 5742 123 123 1.76% 2.14%
C 7006 5742 11 11 0.16% 0.19%
D 7006 5742 96 96 1.37% 1.67%

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 1503409 11213.16 638 625 134.0
A 15 223 1467518 10945.36 638 625 134.0
A 7 3 130679 970.41 638 625 134.0
B 15 36 411128 3386.41 637 620 121.2
B 0 219 184043 1513.11 637 620 121.2
B 4 170 163231 1341.43 637 620 121.2
C 3 233 147725 1023.06 615 619 143.8
C 14 254 130233 901.41 615 619 143.8
C 4 254 104496 722.42 615 619 143.8
D 13 138 249047 1596.92 613 594 155.6
D 5 235 209306 1341.49 613 594 155.6
D 12 233 176270 1129.15 613 594 155.6

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