ASTROSAT CZTI

Data Quality Report

Orbit 48226

Creation date: 2024-09-05T04:52:01.908670
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/AS1C09_011T01_9000006418_48226cztM0_level2.fits modeM0/AS1C09_011T01_9000006418_48226cztM0_level2_quad_clean.evt
Size (bytes)285,923,52062,611,200
Size272.7 MB 59.7 MB
Events in quadrant A4,258,312417,096
Events in quadrant B2,026,808429,918
Events in quadrant C1,597,215401,838
Events in quadrant D2,392,441366,761

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157460
B087420
C079530
D099660

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3967380.957903%
B3968120.302419%
C396800.000000%
D3968882.217742%

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 3967 3967 6 6 0.15% 0.15%
B 3968 3968 3 3 0.08% 0.08%
C 3968 3968 0 0 0.00% 0.00%
D 3968 3968 86 86 2.17% 2.17%

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 2568996 28862.93 418 408 89.0
A 13 248 31926 354.16 418 408 89.0
A 3 14 27118 300.14 418 408 89.0
B 4 21 150971 1803.45 417 404 83.5
B 0 200 119765 1429.67 417 404 83.5
B 0 186 69060 822.34 417 404 83.5
C 12 2 5858 56.69 404 405 96.2
C 14 254 4779 45.47 404 405 96.2
C 3 233 3984 37.21 404 405 96.2
D 2 165 342766 3305.7 406 392 103.6
D 12 233 231860 2234.88 406 392 103.6
D 5 32 104483 1005.02 406 392 103.6

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