ASTROSAT CZTI

Data Quality Report

Orbit 10082

Creation date: 2024-06-27T15:54:40.534066
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/AS1A03_044T04_9000001448_10082cztM0_level2.evt modeM0/AS1A03_044T04_9000001448_10082cztM0_level2_quad_clean.evt
Size (bytes)24,160,3204,625,280
Size23.0 MB 4.4 MB
Events in quadrant A174,81827,343
Events in quadrant B173,74026,855
Events in quadrant C177,70727,449
Events in quadrant D176,04423,680

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03707636300
B03715736384
C03617335358
D04253141814

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01111
B01514
C01212
D01212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0366359
B0359351
C0355348
D0378370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38300.000000%
B38210.261780%
C40700.000000%
D32500.000000%

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 15416 672 0 0 0.00% 0.00%
B 15161 675 0 0 0.00% 0.00%
C 15620 704 0 0 0.00% 0.00%
D 15284 577 0 0 0.00% 0.00%

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 0 8 5314 478.1 43 42 11.0
A 8 15 3180 284.58 43 42 11.0
A 13 253 800 68.74 43 42 11.0
B 0 214 3297 305.01 43 42 10.7
B 4 81 952 85.27 43 42 10.7
B 12 111 927 82.93 43 42 10.7
C 14 234 507 37.36 45 45 12.4
C 4 175 457 33.31 45 45 12.4
C 14 67 330 23.04 45 45 12.4
D 8 195 20423 1918.03 34 33 10.6
D 10 199 9325 874.07 34 33 10.6
D 2 152 8091 757.99 34 33 10.6

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