ASTROSAT CZTI

Data Quality Report

Orbit 20160910_G05_214T01_9000000652_level2

Creation date: 2025-11-06T11:07:32.490983
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_214T01_9000000652cztM0_level2.fits modeM0/AS1G05_214T01_9000000652cztM0_level2_quad_clean.evt
Size (bytes)1,521,452,1601,508,604,480
Size1.4 GB 1.4 GB
Events in quadrant A9,135,7128,907,946
Events in quadrant B8,912,9548,984,662
Events in quadrant C9,041,8548,774,268
Events in quadrant D7,774,0147,813,657

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033320
B033320
C033300
D033320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03500010
B03494440
C03371550
D03773110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16363032621.993522%
B16363030441.860295%
C16362617381.062178%
D16362746022.812494%

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 188717 163608 0 0 0.00% 0.00%
B 188717 163624 0 0 0.00% 0.00%
C 188717 163632 0 0 0.00% 0.00%
D 188717 163555 0 0 0.00% 0.00%

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 0 29 8717 10.72 2372 2205 607.5
A 7 110 7603 8.89 2372 2205 607.5
A 9 19 6811 7.58 2372 2205 607.5
B 2 9 7675 11.32 2347 2221 481.7
B 12 226 6306 8.48 2347 2221 481.7
B 14 254 6248 8.36 2347 2221 481.7
C 1 80 6510 6.79 2387 2197 635.5
C 1 81 6345 6.53 2387 2197 635.5
C 12 241 6179 6.27 2387 2197 635.5
D 11 82 5841 6.5 2209 2003 590.6
D 3 14 5772 6.38 2209 2003 590.6
D 6 231 5661 6.19 2209 2003 590.6

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