ASTROSAT CZTI

Data Quality Report

Orbit 02154

Creation date: 2024-06-27T14:14:41.903325
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/AS1T01_072T01_9000000338_02154cztM0_level2.evt modeM0/AS1T01_072T01_9000000338_02154cztM0_level2_quad_clean.evt
Size (bytes)213,857,28043,303,680
Size204.0 MB 41.3 MB
Events in quadrant A1,443,415269,703
Events in quadrant B1,533,017277,339
Events in quadrant C1,819,903267,765
Events in quadrant D1,455,452263,328

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067091
B068261
C078251
D069231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3276190.579976%
B3276210.641026%
C3276160.488400%
D3276230.702076%

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 4396 3277 0 0 0.00% 0.00%
B 4396 3277 0 0 0.00% 0.00%
C 4396 3277 0 0 0.00% 0.00%
D 4396 3277 16 16 0.36% 0.49%

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 9 4799 59.02 373 367 75.1
A 3 80 1939 20.93 373 367 75.1
A 15 191 1472 14.72 373 367 75.1
B 5 68 30998 424.02 386 378 72.2
B 0 234 16668 225.58 386 378 72.2
B 0 198 8302 109.73 386 378 72.2
C 10 82 336059 4097.44 365 366 81.9
C 9 85 50824 615.89 365 366 81.9
C 9 236 1786 17.33 365 366 81.9
D 2 31 65085 780.89 359 350 82.9
D 13 53 32491 387.71 359 350 82.9
D 5 233 4834 54.09 359 350 82.9

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