ASTROSAT CZTI

Data Quality Report

Orbit 48344

Creation date: 2024-09-05T16:03:52.918183
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_9000006424_48344cztM0_level2.fits modeM0/AS1A13_037T05_9000006424_48344cztM0_level2_quad_clean.evt
Size (bytes)454,452,480111,470,400
Size433.4 MB 106.3 MB
Events in quadrant A7,000,196729,443
Events in quadrant B3,246,999782,424
Events in quadrant C2,939,864742,397
Events in quadrant D3,136,588672,790

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258262
B0139412
C0132702
D0137472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64233785.885100%
B64231241.930562%
C6423691.074264%
D64231111.728164%

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 7573 6423 62 62 0.82% 0.97%
B 7573 6423 9 9 0.12% 0.14%
C 7573 6423 0 0 0.00% 0.00%
D 7573 6423 20 20 0.26% 0.31%

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 3975049 25551.21 746 732 155.5
A 13 248 136528 873.04 746 732 155.5
A 13 254 12313 74.46 746 732 155.5
B 4 21 179448 1219.85 751 729 146.5
B 0 200 44751 300.47 751 729 146.5
B 5 255 23354 154.43 751 729 146.5
C 12 2 32254 181.6 743 747 173.5
C 15 208 5375 26.67 743 747 173.5
C 14 254 5036 24.72 743 747 173.5
D 2 249 82867 447.07 743 721 183.7
D 10 181 46296 248.04 743 721 183.7
D 9 102 37764 201.6 743 721 183.7

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