ASTROSAT CZTI

Data Quality Report

Orbit 07589

Creation date: 2024-06-27T15:21:22.042957
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/AS1A02_024T01_9000001044_07589cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07589cztM0_level2_quad_clean.evt
Size (bytes)697,858,56095,978,880
Size665.5 MB 91.5 MB
Events in quadrant A3,884,874609,800
Events in quadrant B3,808,737619,536
Events in quadrant C7,643,639567,229
Events in quadrant D5,281,166579,148

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165982
B0165471
C0281471
D0211011

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76331081.414909%
B76331642.148565%
C7633155220.332766%
D76334035.279707%

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 7728 7636 0 0 0.00% 0.00%
B 7728 7636 4 4 0.05% 0.05%
C 7727 7635 1157 1157 14.97% 15.15%
D 7728 7636 252 252 3.26% 3.30%

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 15 239 347560 1822.98 919 898 190.2
A 0 226 8774 41.41 919 898 190.2
A 12 194 8075 37.74 919 898 190.2
B 11 51 122616 672.56 930 906 181.0
B 0 214 60427 328.91 930 906 181.0
B 12 111 18998 99.97 930 906 181.0
C 9 68 4416756 22963.74 822 826 192.3
C 1 16 6878 31.47 822 826 192.3
C 13 61 6447 29.23 822 826 192.3
D 5 233 827242 3835.27 873 845 215.5
D 2 152 632046 2929.37 873 845 215.5
D 2 14 338968 1569.21 873 845 215.5

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