ASTROSAT CZTI

Data Quality Report

Orbit 46480

Creation date: 2024-06-27T23:23:41.420135
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_037T05_9000006216_46480cztM0_level2.fits modeM0/AS1A13_037T05_9000006216_46480cztM0_level2_quad_clean.evt
Size (bytes)604,247,040119,430,720
Size576.3 MB 113.9 MB
Events in quadrant A7,123,562805,796
Events in quadrant B6,592,760734,674
Events in quadrant C3,432,769814,855
Events in quadrant D4,630,577733,266

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260410
B0248720
C0155590
D0189751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75812433.205382%
B7581114915.156312%
C758150.065954%
D75811481.952249%

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 7581 7581 123 123 1.62% 1.62%
B 7581 7581 909 909 11.99% 11.99%
C 7581 7581 1 1 0.01% 0.01%
D 7581 7581 109 109 1.44% 1.44%

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 3367211 18757.8 853 832 179.5
A 13 248 305030 1695.02 853 832 179.5
A 0 247 89225 492.53 853 832 179.5
B 10 128 2960318 18243.7 810 785 162.2
B 5 32 165133 1013.1 810 785 162.2
B 5 255 86860 530.6 810 785 162.2
C 3 233 103870 517.99 843 847 198.9
C 5 250 17930 85.89 843 847 198.9
C 12 249 14244 67.36 843 847 198.9
D 1 52 864760 4095.31 834 808 211.0
D 2 249 206001 972.66 834 808 211.0
D 13 249 162764 767.71 834 808 211.0

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