ASTROSAT CZTI

Data Quality Report

Orbit 17606

Creation date: 2024-06-27T17:38:34.091487
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/AS1A05_056T01_9000002604_17606cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17606cztM0_level2_quad_clean.evt
Size (bytes)528,972,480100,301,760
Size504.5 MB 95.7 MB
Events in quadrant A3,451,423648,024
Events in quadrant B3,480,826645,609
Events in quadrant C5,304,565612,289
Events in quadrant D3,284,812620,490

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151071
B0150631
C0214511
D0150261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7347240.326664%
B7348460.626021%
C73481512.054981%
D7348160.217746%

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 7722 7349 1 1 0.01% 0.01%
B 7723 7350 0 0 0.00% 0.00%
C 7723 7350 1 1 0.01% 0.01%
D 7723 7350 6 6 0.08% 0.08%

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 14 237 35589 193.3 885 865 179.6
A 0 13 12526 64.91 885 865 179.6
A 0 226 7805 38.63 885 865 179.6
B 12 111 20879 116.42 881 860 172.0
B 11 111 18041 99.92 881 860 172.0
B 14 111 15467 84.95 881 860 172.0
C 3 233 1840588 9346.13 838 842 196.8
C 14 238 130456 658.45 838 842 196.8
C 5 218 60779 304.49 838 842 196.8
D 2 234 28451 131.28 857 832 210.4
D 7 223 18335 83.2 857 832 210.4
D 2 120 8965 38.66 857 832 210.4

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