ASTROSAT CZTI

Data Quality Report

Orbit 09193

Creation date: 2024-06-27T15:42:33.155447
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/AS1C02_042T02_9000001284_09193cztM0_level2.evt modeM0/AS1C02_042T02_9000001284_09193cztM0_level2_quad_clean.evt
Size (bytes)499,697,28068,192,640
Size476.5 MB 65.0 MB
Events in quadrant A3,900,273405,162
Events in quadrant B3,359,530411,700
Events in quadrant C3,181,647404,363
Events in quadrant D4,235,943375,236

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156664
B0141292
C0138772
D0171502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67161311.950566%
B67161251.861227%
C6716731.086957%
D67163174.720071%

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 7703 6717 18 18 0.23% 0.27%
B 7703 6716 0 0 0.00% 0.00%
C 7703 6717 0 0 0.00% 0.00%
D 7703 6717 208 208 2.70% 3.10%

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 8 5 461182 2701.97 833 815 170.4
A 1 162 116404 678.41 833 815 170.4
A 15 174 47367 273.22 833 815 170.4
B 8 234 25268 151.74 841 820 161.1
B 12 111 17425 103.06 841 820 161.1
B 11 111 14093 82.38 841 820 161.1
C 13 61 6251 28.59 814 819 190.0
C 8 222 3491 14.06 814 819 190.0
C 3 202 2040 6.43 814 819 190.0
D 1 52 659590 3140.86 788 769 209.8
D 7 71 494408 2353.37 788 769 209.8
D 2 14 37332 174.31 788 769 209.8

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