ASTROSAT CZTI

Data Quality Report

Orbit 09370

Creation date: 2024-06-27T15:45:09.662710
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/AS1G07_040T01_9000001326_09370cztM0_level2.evt modeM0/AS1G07_040T01_9000001326_09370cztM0_level2_quad_clean.evt
Size (bytes)34,381,4408,570,880
Size32.8 MB 8.2 MB
Events in quadrant A265,34055,523
Events in quadrant B218,97855,939
Events in quadrant C216,45154,766
Events in quadrant D305,63652,716

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01822745
B01659714
C01671709
D02024782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168
B0166
C0155
D0166

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A45530.659341%
B45720.437637%
C46120.433839%
D46030.652174%

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 613 493 3 3 0.49% 0.61%
B 820 508 0 0 0.00% 0.00%
C 822 513 1 1 0.12% 0.19%
D 628 496 1 1 0.16% 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 8 5 57012 4305.1 53 51 13.2
A 1 162 1516 110.72 53 51 13.2
A 5 16 1165 84.2 53 51 13.2
B 4 173 2128 158.12 54 53 13.1
B 5 255 1548 113.92 54 53 13.1
B 3 209 1370 100.36 54 53 13.1
C 9 68 8964 627.94 53 53 14.2
C 13 61 369 22.27 53 53 14.2
C 10 22 213 11.27 53 53 14.2
D 8 195 90523 6175.95 51 49 14.6
D 1 52 10993 747.06 51 49 14.6
D 12 233 4052 273.25 51 49 14.6

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