ASTROSAT CZTI

Data Quality Report

Orbit 09324

Creation date: 2024-06-27T15:44:31.185960
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/AS1G07_009T01_9000001318_09324cztM0_level2.evt modeM0/AS1G07_009T01_9000001318_09324cztM0_level2_quad_clean.evt
Size (bytes)842,091,840149,880,960
Size803.1 MB 142.9 MB
Events in quadrant A6,433,003931,828
Events in quadrant B5,674,641956,586
Events in quadrant C5,349,138937,591
Events in quadrant D7,237,185887,209

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02683427
B02502420
C02453116
D02997327

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02420
B02420
C02420
D02420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11947960.803549%
B119481060.887178%
C11950490.410042%
D119474453.724784%

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 13711 11959 3 3 0.02% 0.03%
B 13711 11960 2 2 0.01% 0.02%
C 13711 11959 0 0 0.00% 0.00%
D 13711 11959 342 342 2.49% 2.86%

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 8 5 991476 3471.33 1403 1373 285.2
A 1 162 27607 91.98 1403 1373 285.2
A 0 226 12662 39.58 1403 1373 285.2
B 10 245 99449 361.63 1415 1382 271.2
B 8 234 51705 185.57 1415 1382 271.2
B 12 111 31011 109.26 1415 1382 271.2
C 13 61 10412 28.47 1369 1377 317.4
C 8 222 5528 13.08 1369 1377 317.4
C 10 22 3969 8.17 1369 1377 317.4
D 12 227 1512325 4403.38 1331 1300 343.2
D 1 52 181170 524.17 1331 1300 343.2
D 12 233 179612 519.63 1331 1300 343.2

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