ASTROSAT CZTI

Data Quality Report

Orbit 09316

Creation date: 2024-06-27T15:44:24.612024
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/AS1G07_002T01_9000001316_09316cztM0_level2.evt modeM0/AS1G07_002T01_9000001316_09316cztM0_level2_quad_clean.evt
Size (bytes)501,235,20091,457,280
Size478.0 MB 87.2 MB
Events in quadrant A4,609,101578,072
Events in quadrant B3,302,191596,548
Events in quadrant C2,921,192586,674
Events in quadrant D3,915,359564,004

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01803620
B0139729
C0129815
D0158533

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63633986.254911%
B6366991.555137%
C6365380.597015%
D63662173.408734%

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 7317 6368 169 169 2.31% 2.65%
B 7317 6368 27 27 0.37% 0.42%
C 7317 6368 0 0 0.00% 0.00%
D 7317 6367 136 136 1.86% 2.14%

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 1592103 10410.08 755 739 152.9
A 12 236 71362 461.99 755 739 152.9
A 1 162 27990 178.27 755 739 152.9
B 10 245 247686 1668.36 764 744 148.0
B 0 219 50924 339.02 764 744 148.0
B 4 173 23553 154.1 764 744 148.0
C 13 61 5334 26.35 747 750 173.9
C 14 67 3060 13.28 747 750 173.9
C 8 222 2689 11.15 747 750 173.9
D 1 52 784910 4307.84 735 714 182.0
D 10 172 153869 841.33 735 714 182.0
D 12 227 89836 489.58 735 714 182.0

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