ASTROSAT CZTI

Data Quality Report

Orbit 46321

Creation date: 2024-06-27T23:21:41.708806
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/AS1T05_200T01_9000006196_46321cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46321cztM0_level2_quad_clean.evt
Size (bytes)794,687,040103,541,760
Size757.9 MB 98.7 MB
Events in quadrant A16,421,867249,137
Events in quadrant B5,121,137834,379
Events in quadrant C3,425,730792,838
Events in quadrant D3,848,276721,366

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540730
B0204930
C0161590
D0172800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7717568873.707399%
B77171832.371388%
C7718380.492356%
D77181321.710288%

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 7717 7716 4636 4636 60.08% 60.08%
B 7717 7717 33 33 0.43% 0.43%
C 7718 7718 15 15 0.19% 0.19%
D 7718 7718 99 99 1.28% 1.28%

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 15 223 12724464 133696.31 454 445 95.2
A 10 83 1844768 19379.03 454 445 95.2
A 15 239 69590 726.53 454 445 95.2
B 3 112 1320417 7827.51 850 822 168.6
B 5 63 129984 766.16 850 822 168.6
B 0 190 105613 621.59 850 822 168.6
C 12 2 109964 558.47 830 832 195.4
C 1 3 23651 116.77 830 832 195.4
C 12 249 16737 81.39 830 832 195.4
D 1 52 339535 1641.19 824 798 206.4
D 13 249 86577 415.6 824 798 206.4
D 2 120 57082 272.7 824 798 206.4

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