ASTROSAT CZTI

Data Quality Report

Orbit 20337

Creation date: 2024-06-27T18:14:07.089511
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_163T01_9000003010_20337cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20337cztM0_level2_quad_clean.evt
Size (bytes)309,343,68056,520,000
Size295.0 MB 53.9 MB
Events in quadrant A2,255,536351,859
Events in quadrant B2,317,080360,743
Events in quadrant C2,288,619345,348
Events in quadrant D2,203,640340,138

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093181
B094461
C094081
D094091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4455220.493827%
B4455451.010101%
C4455611.369248%
D4455120.269360%

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 5795 4456 0 0 0.00% 0.00%
B 5795 4456 0 0 0.00% 0.00%
C 5795 4456 0 0 0.00% 0.00%
D 5795 4456 4 4 0.07% 0.09%

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 0 226 5026 37.79 585 573 117.8
A 3 137 4590 34.09 585 573 117.8
A 13 254 4302 31.65 585 573 117.8
B 0 230 16116 140.53 584 570 110.6
B 12 111 13129 113.53 584 570 110.6
B 11 111 11851 101.98 584 570 110.6
C 14 238 88367 663.74 564 570 132.3
C 13 61 3958 25.61 564 570 132.3
C 1 16 1753 8.94 564 570 132.3
D 1 52 23869 168.12 571 554 138.7
D 2 234 17224 120.2 571 554 138.7
D 2 184 13280 91.76 571 554 138.7

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