ASTROSAT CZTI

Data Quality Report

Orbit 04341

Creation date: 2024-06-27T14:40:36.018666
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/AS1G05_219T01_9000000540_04341cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04341cztM0_level2_quad_clean.evt
Size (bytes)820,258,56073,990,080
Size782.3 MB 70.6 MB
Events in quadrant A3,276,727538,497
Events in quadrant B14,623,791222,651
Events in quadrant C3,211,028523,512
Events in quadrant D3,297,624507,915

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138453
B0477072
C0136682
D0139632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63891061.659102%
B6389516080.763813%
C6389841.314760%
D6389891.393019%

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 7629 6389 13 13 0.17% 0.20%
B 7628 6388 4898 4898 64.21% 76.68%
C 7629 6389 10 10 0.13% 0.16%
D 7629 6389 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 15 234 62573 373.23 818 803 165.5
A 0 50 29649 174.3 818 803 165.5
A 8 15 14358 81.9 818 803 165.5
B 3 0 12651523 139900.57 472 463 90.4
B 10 16 68245 749.56 472 463 90.4
B 14 167 41107 449.46 472 463 90.4
C 9 247 85811 467.68 784 790 181.8
C 9 16 39404 212.41 784 790 181.8
C 8 128 14686 76.44 784 790 181.8
D 2 136 97434 511.03 792 772 189.2
D 14 34 54004 281.42 792 772 189.2
D 9 35 43824 227.61 792 772 189.2

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