ASTROSAT CZTI

Data Quality Report

Orbit 10130

Creation date: 2024-06-27T15:55:21.815549
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/AS1A03_079T02_9000001458_10130cztM0_level2.evt modeM0/AS1A03_079T02_9000001458_10130cztM0_level2_quad_clean.evt
Size (bytes)486,656,64082,889,280
Size464.1 MB 79.0 MB
Events in quadrant A3,325,297520,848
Events in quadrant B3,514,452523,496
Events in quadrant C3,157,202516,002
Events in quadrant D4,296,547492,654

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140753
B0146632
C0135622
D0168382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6550861.312977%
B6550891.358779%
C6550600.916031%
D65502443.725191%

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 7780 6550 10 10 0.13% 0.15%
B 7780 6550 8 8 0.10% 0.12%
C 7780 6551 0 0 0.00% 0.00%
D 7780 6550 158 158 2.03% 2.41%

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 15 174 78811 462.55 837 820 168.6
A 8 5 14615 81.81 837 820 168.6
A 13 248 8225 43.92 837 820 168.6
B 0 214 117429 751.07 830 811 155.3
B 0 219 72833 463.85 830 811 155.3
B 0 189 33233 208.81 830 811 155.3
C 14 67 13577 69.77 805 811 183.0
C 13 61 6090 28.85 805 811 183.0
C 14 234 2919 11.52 805 811 183.0
D 4 95 499571 2636.0 799 779 189.2
D 8 195 311840 1643.88 799 779 189.2
D 2 152 120382 632.07 799 779 189.2

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