ASTROSAT CZTI

Data Quality Report

Orbit 40571

Creation date: 2024-06-27T22:17:43.285054
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/AS1A12_054T02_9000005550_40571cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40571cztM0_level2_quad_clean.evt
Size (bytes)425,234,88085,875,840
Size405.5 MB 81.9 MB
Events in quadrant A2,916,360602,229
Events in quadrant B5,643,457596,753
Events in quadrant C2,645,727590,939
Events in quadrant D4,098,383417,357

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122403
B0208122
C0115502
D0163192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A560760.107009%
B56073335.939005%
C5607280.499376%
D5607152827.251650%

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 8684 5609 4 4 0.05% 0.07%
B 8684 5609 286 286 3.29% 5.10%
C 8684 5609 23 23 0.26% 0.41%
D 8684 5609 374 374 4.31% 6.67%

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 498914 4006.33 602 590 124.4
A 15 191 65783 524.13 602 590 124.4
A 12 189 18827 146.62 602 590 124.4
B 3 112 3008456 26405.23 589 573 113.9
B 0 190 118685 1036.87 589 573 113.9
B 7 202 93878 819.09 589 573 113.9
C 15 214 245942 1767.38 588 590 138.8
C 14 254 67280 480.4 588 590 138.8
C 0 10 39722 281.88 588 590 138.8
D 12 227 1322599 10283.18 510 494 128.6
D 5 32 252264 1958.24 510 494 128.6
D 12 191 237660 1844.65 510 494 128.6

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