ASTROSAT CZTI

Data Quality Report

Orbit 13304

Creation date: 2024-06-27T16:39:02.288538
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/AS1G08_023T01_9000001978_13304cztM0_level2.evt modeM0/AS1G08_023T01_9000001978_13304cztM0_level2_quad_clean.evt
Size (bytes)598,199,04096,704,640
Size570.5 MB 92.2 MB
Events in quadrant A3,276,767625,510
Events in quadrant B3,389,221645,792
Events in quadrant C3,142,676625,140
Events in quadrant D7,841,578552,301

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143913
B0145792
C0140732
D0282042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6881460.668507%
B6881650.944630%
C6881150.217992%
D6881119417.352129%

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 9082 6884 6 6 0.07% 0.09%
B 9082 6884 3 3 0.03% 0.04%
C 9082 6884 0 0 0.00% 0.00%
D 9082 6884 924 924 10.17% 13.42%

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 9 143 51716 306.87 818 800 165.9
A 8 15 38093 224.77 818 800 165.9
A 1 162 19356 111.84 818 800 165.9
B 3 64 48865 306.27 829 806 156.9
B 4 142 20185 123.5 829 806 156.9
B 0 244 19144 116.86 829 806 156.9
C 13 61 5853 27.1 804 809 186.1
C 8 222 4426 19.43 804 809 186.1
C 3 233 2988 11.71 804 809 186.1
D 1 52 3496846 19391.82 751 730 180.3
D 5 222 1276962 7078.84 751 730 180.3
D 13 249 67949 372.84 751 730 180.3

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