ASTROSAT CZTI

Data Quality Report

Orbit 43656

Creation date: 2024-06-27T22:54:08.630645
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/AS1A12_068T05_9000005894_43656cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43656cztM0_level2_quad_clean.evt
Size (bytes)2,570,555,520158,688,000
Size2.4 GB 151.3 MB
Events in quadrant A9,993,9951,511,336
Events in quadrant B8,908,0511,527,440
Events in quadrant C36,473,952583,360
Events in quadrant D38,690,205190,469

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02860
B02860
C02860
D02860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0395442
B0367632
C01177502
D01241003

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A141702992.110092%
B141705453.846154%
C141701349195.208186%
D1416914169100.000000%

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 14770 14172 79 79 0.53% 0.56%
B 14770 14172 181 181 1.23% 1.28%
C 14770 14172 13218 13218 89.49% 93.27%
D 14769 14171 14017 14017 94.91% 98.91%

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 1658079 5141.65 1558 1527 322.2
A 14 63 911893 2825.62 1558 1527 322.2
A 15 223 570794 1766.91 1558 1527 322.2
B 4 206 938836 3138.27 1541 1495 298.7
B 3 42 592008 1977.07 1541 1495 298.7
B 12 3 354176 1180.8 1541 1495 298.7
C 15 142 24988839 161175.31 660 662 155.0
C 15 126 4362554 28134.48 660 662 155.0
C 15 158 1412214 9104.6 660 662 155.0
D 8 192 34696473 456079.27 247 237 76.1
D 4 216 745465 9795.96 247 237 76.1
D 4 221 564449 7416.52 247 237 76.1

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