ASTROSAT CZTI

Data Quality Report

Orbit 33273

Creation date: 2024-06-27T20:46:55.694117
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/AS1T04_072T01_9000004780_33273cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33273cztM0_level2_quad_clean.evt
Size (bytes)313,804,80043,692,480
Size299.3 MB 41.7 MB
Events in quadrant A1,547,023287,572
Events in quadrant B2,450,895272,354
Events in quadrant C1,798,331280,734
Events in quadrant D3,487,503252,687

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065232
B093781
C071501
D0126771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A321820.062150%
B32182678.297079%
C3218230.714730%
D321841012.740833%

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 4801 3219 0 0 0.00% 0.00%
B 4801 3219 196 196 4.08% 6.09%
C 4801 3219 16 16 0.33% 0.50%
D 4801 3219 303 303 6.31% 9.41%

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 13 6 7005 82.26 395 387 80.5
A 15 169 5535 63.99 395 387 80.5
A 13 254 5415 62.5 395 387 80.5
B 5 172 732655 9949.02 376 367 73.6
B 4 170 116824 1582.21 376 367 73.6
B 0 219 24595 329.17 376 367 73.6
C 15 214 137478 1541.89 378 381 88.9
C 10 49 72903 815.63 378 381 88.9
C 0 10 55268 617.3 378 381 88.9
D 8 195 738536 7414.31 363 355 99.6
D 7 223 338579 3397.13 363 355 99.6
D 2 249 284373 2852.69 363 355 99.6

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