ASTROSAT CZTI

Data Quality Report

Orbit 16054

Creation date: 2024-06-27T17:17:20.202489
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/AS1G08_012T01_9000002370_16054cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16054cztM0_level2_quad_clean.evt
Size (bytes)488,917,440103,201,920
Size466.3 MB 98.4 MB
Events in quadrant A3,567,260662,952
Events in quadrant B3,591,269678,586
Events in quadrant C3,697,361657,703
Events in quadrant D3,482,942645,913

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149383
B0151112
C0153072
D0148982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6893801.160598%
B68931181.711882%
C68931732.509793%
D6893801.160598%

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 9304 6895 0 0 0.00% 0.00%
B 9304 6894 12 12 0.13% 0.17%
C 9304 6895 15 15 0.16% 0.22%
D 9304 6895 13 13 0.14% 0.19%

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 3 80 142609 795.54 885 865 178.2
A 15 222 12498 65.29 885 865 178.2
A 0 226 7568 37.62 885 865 178.2
B 0 182 64485 378.29 887 863 168.2
B 4 216 24848 142.61 887 863 168.2
B 12 111 20272 115.4 887 863 168.2
C 9 236 163048 809.98 862 870 200.2
C 14 238 132696 658.39 862 870 200.2
C 3 233 38766 189.27 862 870 200.2
D 2 152 73968 344.97 874 851 212.0
D 2 120 54942 255.2 874 851 212.0
D 12 218 36410 167.77 874 851 212.0

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