ASTROSAT CZTI

Data Quality Report

Orbit 08572

Creation date: 2024-06-27T15:34:26.259737
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_060T01_9000001200_08572cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08572cztM0_level2_quad_clean.evt
Size (bytes)495,855,36078,192,000
Size472.9 MB 74.6 MB
Events in quadrant A3,480,347464,422
Events in quadrant B3,830,681470,806
Events in quadrant C3,354,905468,595
Events in quadrant D3,848,391448,942

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155683
B0163052
C0153282
D0167392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73922343.165584%
B73922893.909632%
C73921401.893939%
D73921802.435065%

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 7682 7392 3 3 0.04% 0.04%
B 7682 7392 36 36 0.47% 0.49%
C 7682 7393 0 0 0.00% 0.00%
D 7682 7392 10 10 0.13% 0.14%

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 5 112 62981 343.09 878 858 181.1
A 15 223 20013 105.79 878 858 181.1
A 15 239 10192 51.55 878 858 181.1
B 10 16 338944 1960.91 879 855 172.4
B 0 214 44414 252.64 879 855 172.4
B 12 111 20353 113.09 879 855 172.4
C 13 61 6629 28.84 857 859 200.1
C 2 244 6479 28.09 857 859 200.1
C 8 222 3951 15.45 857 859 200.1
D 1 52 290581 1315.98 846 826 220.2
D 14 34 135100 609.83 846 826 220.2
D 13 105 76028 341.55 846 826 220.2

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