ASTROSAT CZTI

Data Quality Report

Orbit 26389

Creation date: 2024-06-27T19:28:27.712373
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/AS1A09_044T02_9000003814_26389cztM0_level2.evt modeM0/AS1A09_044T02_9000003814_26389cztM0_level2_quad_clean.evt
Size (bytes)502,136,64093,441,600
Size478.9 MB 89.1 MB
Events in quadrant A3,211,800612,080
Events in quadrant B3,281,543635,648
Events in quadrant C3,553,186585,565
Events in quadrant D4,732,250555,588

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134230
B0135060
C0143820
D0184200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6317240.379927%
B6317410.649042%
C63171121.772994%
D63173806.015514%

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 7567 6318 0 0 0.00% 0.00%
B 7567 6318 1 1 0.01% 0.02%
C 7567 6318 7 7 0.09% 0.11%
D 7567 6318 257 257 3.40% 4.07%

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 13 254 11106 61.72 831 816 166.7
A 3 137 7489 40.02 831 816 166.7
A 0 226 7031 37.28 831 816 166.7
B 12 111 18743 112.11 835 814 159.9
B 11 111 16618 98.82 835 814 159.9
B 0 230 16563 98.48 835 814 159.9
C 3 233 283026 1522.55 790 797 185.4
C 14 238 128365 688.19 790 797 185.4
C 2 16 57914 308.13 790 797 185.4
D 7 80 1070010 5760.67 775 759 185.6
D 1 52 656349 3532.04 775 759 185.6
D 12 233 52016 276.15 775 759 185.6

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