ASTROSAT CZTI

Data Quality Report

Orbit 03374

Creation date: 2024-06-27T14:28:11.079672
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/AS1G05_112T01_9000000452_03374cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03374cztM0_level2_quad_clean.evt
Size (bytes)448,807,68074,825,280
Size428.0 MB 71.4 MB
Events in quadrant A3,056,036455,824
Events in quadrant B3,302,479461,732
Events in quadrant C3,877,757456,636
Events in quadrant D2,915,125439,182

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136733
B0140932
C0158652
D0134362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6477210.324224%
B6477480.741084%
C64772253.473830%
D6477100.154392%

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 7557 6478 2 2 0.03% 0.03%
B 7557 6478 13 13 0.17% 0.20%
C 7557 6478 202 202 2.67% 3.12%
D 7557 6478 2 2 0.03% 0.03%

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 10 220 88706 565.07 757 740 155.7
A 0 118 21885 135.83 757 740 155.7
A 0 50 15204 92.91 757 740 155.7
B 15 204 167887 1112.93 771 753 150.2
B 2 249 126332 836.22 771 753 150.2
B 0 229 20440 131.09 771 753 150.2
C 15 208 953043 5525.72 736 740 172.3
C 1 16 14330 78.86 736 740 172.3
C 12 4 7964 41.92 736 740 172.3
D 12 110 74522 409.97 738 718 180.0
D 13 223 26324 142.24 738 718 180.0
D 2 37 10345 53.48 738 718 180.0

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