ASTROSAT CZTI

Data Quality Report

Orbit 40161

Creation date: 2024-06-27T22:13:04.228506
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/AS1A12_068T02_9000005524_40161cztM0_level2.fits modeM0/AS1A12_068T02_9000005524_40161cztM0_level2_quad_clean.evt
Size (bytes)415,247,04045,440,640
Size396.0 MB 43.3 MB
Events in quadrant A1,777,845386,490
Events in quadrant B1,643,844399,865
Events in quadrant C9,230,4502,619
Events in quadrant D2,434,701330,189

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073670
B074770
C0299054
D098550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A363020.055096%
B363080.220386%
C3629360699.366217%
D36302286.280992%

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 3630 3630 0 0 0.00% 0.00%
B 3630 3630 1 1 0.03% 0.03%
C 3629 3628 3539 3539 97.52% 97.55%
D 3630 3630 221 221 6.09% 6.09%

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 10 83 220673 2677.3 395 386 82.3
A 2 79 13751 162.43 395 386 82.3
A 13 6 8704 101.09 395 386 82.3
B 4 171 61568 795.37 390 379 76.9
B 5 172 26054 333.74 390 379 76.9
B 12 111 9619 120.11 390 379 76.9
C 9 187 8575187 241499.62 147 147 35.5
C 15 214 60164 1690.26 147 147 35.5
C 9 203 11437 317.96 147 147 35.5
D 12 233 623183 6736.93 373 361 92.4
D 12 0 107770 1161.82 373 361 92.4
D 13 249 85911 925.38 373 361 92.4

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