ASTROSAT CZTI

Data Quality Report

Orbit 48306

Creation date: 2024-09-06T13:23:07.809382
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_029T01_9000006422_48306cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48306cztM0_level2_quad_clean.evt
Size (bytes)559,874,880123,382,080
Size533.9 MB 117.7 MB
Events in quadrant A8,158,567814,069
Events in quadrant B4,046,299848,293
Events in quadrant C3,564,493809,007
Events in quadrant D4,359,116729,174

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295510
B0172850
C0161240
D0184172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76932973.860653%
B7694760.987783%
C7694120.155966%
D76931802.339789%

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 7693 7693 59 59 0.77% 0.77%
B 7694 7694 28 28 0.36% 0.36%
C 7694 7694 4 4 0.05% 0.05%
D 7693 7693 110 110 1.43% 1.43%

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 4567192 25255.36 868 847 180.8
A 13 248 194325 1070.08 868 847 180.8
A 13 254 15849 82.97 868 847 180.8
B 4 21 314350 1824.02 871 842 171.9
B 5 255 119552 690.67 871 842 171.9
B 5 171 45074 257.35 871 842 171.9
C 0 207 129105 631.13 857 861 203.2
C 12 2 34651 166.29 857 861 203.2
C 14 254 30597 146.34 857 861 203.2
D 12 128 341038 1566.24 853 826 217.2
D 12 2 317339 1457.14 853 826 217.2
D 2 249 127821 584.65 853 826 217.2

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