ASTROSAT CZTI

Data Quality Report

Orbit 43614

Creation date: 2024-06-27T22:53:41.094487
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_095T02_9000005892_43614cztM0_level2.fits modeM0/AS1A12_095T02_9000005892_43614cztM0_level2_quad_clean.evt
Size (bytes)984,081,60076,881,600
Size938.5 MB 73.3 MB
Events in quadrant A3,957,120658,104
Events in quadrant B4,721,892672,664
Events in quadrant C14,685,944220,436
Events in quadrant D12,587,569342,489

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154963
B01830024
C047929102
D04162312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61452023.287225%
B61432844.623148%
C6134577294.098468%
D6143436070.975094%

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 7001 6146 83 83 1.19% 1.35%
B 7002 6146 149 149 2.13% 2.42%
C 7000 6133 5281 5281 75.44% 86.11%
D 7001 6145 3618 3618 51.68% 58.88%

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 720284 5048.54 685 671 142.5
A 15 223 460224 3224.06 685 671 142.5
A 8 4 41154 284.01 685 671 142.5
B 4 206 1048324 7781.4 680 658 134.6
B 5 235 726213 5388.97 680 658 134.6
B 0 230 52299 383.56 680 658 134.6
C 15 142 4545273 81804.85 232 233 55.6
C 15 158 4455212 80183.87 232 233 55.6
C 15 174 3758785 67649.08 232 233 55.6
D 4 212 4124664 34587.21 404 391 119.2
D 13 187 2128367 17845.75 404 391 119.2
D 4 216 874565 7331.05 404 391 119.2

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