ASTROSAT CZTI

Data Quality Report

Orbit 43149

Creation date: 2024-06-27T22:48:38.952540
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/AS1A09_107T01_9000005854_43149cztM0_level2.fits modeM0/AS1A09_107T01_9000005854_43149cztM0_level2_quad_clean.evt
Size (bytes)346,199,04094,271,040
Size330.2 MB 89.9 MB
Events in quadrant A3,677,741609,636
Events in quadrant B2,651,158641,863
Events in quadrant C2,634,406624,792
Events in quadrant D3,396,832569,526

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146352
B0121212
C0117662
D0143382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58421783.046902%
B5842290.496405%
C584220.034235%
D58421111.900034%

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 7154 5843 144 144 2.01% 2.46%
B 7154 5843 18 18 0.25% 0.31%
C 7154 5843 0 0 0.00% 0.00%
D 7154 5843 117 117 1.64% 2.00%

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 613897 4935.39 603 589 124.3
A 15 222 377968 3036.83 603 589 124.3
A 15 237 239624 1923.55 603 589 124.3
B 0 189 89805 751.57 611 592 118.7
B 0 229 78966 660.26 611 592 118.7
B 0 186 36689 304.09 611 592 118.7
C 15 214 258008 1828.25 602 606 140.8
C 14 254 14578 99.24 602 606 140.8
C 15 159 5456 34.45 602 606 140.8
D 1 52 896883 6115.65 593 575 146.6
D 12 233 89335 605.62 593 575 146.6
D 2 234 29690 198.66 593 575 146.6

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