ASTROSAT CZTI

Data Quality Report

Orbit 47391

Creation date: 2024-07-03T08:55:19.482448
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/AS1A13_093T25_9000006324_47391cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47391cztM0_level2_quad_clean.evt
Size (bytes)484,174,080112,219,200
Size461.7 MB 107.0 MB
Events in quadrant A7,175,148735,474
Events in quadrant B3,610,640768,360
Events in quadrant C3,115,071732,548
Events in quadrant D3,478,721674,309

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262092
B0154792
C0144432
D0154903

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69963174.531161%
B69961632.329903%
C6996400.571755%
D6995741.057898%

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 7611 6996 44 44 0.58% 0.63%
B 7611 6996 38 38 0.50% 0.54%
C 7611 6997 3 3 0.04% 0.04%
D 7610 6997 37 37 0.49% 0.53%

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 3834354 22873.89 795 777 167.6
A 9 191 215500 1281.19 795 777 167.6
A 15 235 35191 205.34 795 777 167.6
B 5 32 162025 994.9 803 778 162.1
B 0 198 57297 348.73 803 778 162.1
B 0 190 52503 319.15 803 778 162.1
C 3 233 9654 46.79 792 795 189.3
C 12 250 7347 34.6 792 795 189.3
C 9 237 7227 33.97 792 795 189.3
D 2 249 244296 1226.66 786 763 198.5
D 12 2 88382 441.33 786 763 198.5
D 7 38 76569 381.83 786 763 198.5

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