ASTROSAT CZTI

Data Quality Report

Orbit 46958

Creation date: 2024-06-27T23:29:57.121746
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/AS1A13_070T06_9000006288_46958cztM0_level2.fits modeM0/AS1A13_070T06_9000006288_46958cztM0_level2_quad_clean.evt
Size (bytes)591,053,760124,620,480
Size563.7 MB 118.8 MB
Events in quadrant A7,070,322834,332
Events in quadrant B6,499,464820,249
Events in quadrant C3,545,245832,590
Events in quadrant D4,161,751745,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260180
B0246930
C0163780
D0183420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7773971.247909%
B77735096.548308%
C7774270.347312%
D77742533.254438%

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 7773 7773 1 1 0.01% 0.01%
B 7773 7773 309 309 3.98% 3.98%
C 7774 7774 15 15 0.19% 0.19%
D 7774 7774 222 222 2.86% 2.86%

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 3699899 20422.11 866 846 181.1
A 13 6 11907 61.07 866 846 181.1
A 13 254 10880 55.4 866 846 181.1
B 3 112 2702745 16078.18 850 822 168.0
B 5 255 229338 1359.82 850 822 168.0
B 0 190 60345 354.2 850 822 168.0
C 14 254 152888 746.11 864 866 203.8
C 15 208 12049 54.88 864 866 203.8
C 1 3 8218 36.08 864 866 203.8
D 12 3 495208 2335.59 847 820 211.7
D 13 249 179690 845.02 847 820 211.7
D 5 171 61758 287.88 847 820 211.7

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