ASTROSAT CZTI

Data Quality Report

Orbit 03688

Creation date: 2024-06-27T14:32:14.859875
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_152T04_9000000480_03688cztM0_level2.evt modeM0/AS1G05_152T04_9000000480_03688cztM0_level2_quad_clean.evt
Size (bytes)487,192,32056,580,480
Size464.6 MB 54.0 MB
Events in quadrant A4,700,773308,864
Events in quadrant B3,562,795320,523
Events in quadrant C3,042,211317,071
Events in quadrant D3,004,698309,986

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183273
B0145232
C0135502
D0136712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65443996.097188%
B65441041.589242%
C6544671.023839%
D6544691.054401%

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 7634 6545 235 235 3.08% 3.59%
B 7634 6544 13 13 0.17% 0.20%
C 7634 6545 3 3 0.04% 0.05%
D 7634 6545 13 13 0.17% 0.20%

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 13 251 1481179 9330.18 776 759 158.7
A 0 50 80761 504.2 776 759 158.7
A 13 164 48409 300.31 776 759 158.7
B 15 204 134161 866.23 799 780 154.0
B 14 167 88450 569.37 799 780 154.0
B 5 70 66193 424.82 799 780 154.0
C 9 144 28536 156.25 761 765 177.7
C 9 247 26749 146.2 761 765 177.7
C 2 53 10858 56.79 761 765 177.7
D 13 239 61607 329.26 759 737 184.9
D 5 233 27423 144.35 759 737 184.9
D 2 14 19339 100.62 759 737 184.9

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
Veto Counter