ASTROSAT CZTI

Data Quality Report

Orbit 43309

Creation date: 2024-06-27T22:50:27.670623
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_088T25_9000005866_43309cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43309cztM0_level2_quad_clean.evt
Size (bytes)346,173,12092,914,560
Size330.1 MB 88.6 MB
Events in quadrant A3,699,538611,934
Events in quadrant B2,601,392642,419
Events in quadrant C2,835,785609,339
Events in quadrant D3,236,568553,519

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145952
B0116052
C0119962
D0136952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56591853.269129%
B5659170.300406%
C5659310.547800%
D56591402.473935%

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 7212 5660 129 129 1.79% 2.28%
B 7212 5660 4 4 0.06% 0.07%
C 7212 5660 25 25 0.35% 0.44%
D 7212 5660 148 148 2.05% 2.61%

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 628293 4800.05 617 602 130.8
A 15 237 599998 4583.67 617 602 130.8
A 12 189 30262 226.81 617 602 130.8
B 0 189 29608 227.43 628 609 127.5
B 0 186 23371 178.52 628 609 127.5
B 5 255 20449 155.6 628 609 127.5
C 15 214 238490 1614.03 612 613 147.4
C 14 254 74337 500.23 612 613 147.4
C 2 16 61567 413.58 612 613 147.4
D 1 52 257804 1709.56 601 581 150.5
D 12 233 235437 1560.9 601 581 150.5
D 2 249 209212 1386.6 601 581 150.5

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