ASTROSAT CZTI

Data Quality Report

Orbit 10730

Creation date: 2024-06-27T16:03:01.152411
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/AS1A03_078T01_9000001546_10730cztM0_level2.evt modeM0/AS1A03_078T01_9000001546_10730cztM0_level2_quad_clean.evt
Size (bytes)689,207,040117,008,640
Size657.3 MB 111.6 MB
Events in quadrant A5,797,839733,438
Events in quadrant B5,332,699747,709
Events in quadrant C4,045,886752,763
Events in quadrant D5,107,174705,659

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02324245
B02171722
C01823319
D02126616

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01782
B01780
C01780
D01780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86973213.690928%
B87014735.436157%
C8700871.000000%
D87032542.918534%

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 9043 8712 177 177 1.96% 2.03%
B 9043 8711 155 155 1.71% 1.78%
C 9043 8712 4 4 0.04% 0.05%
D 9043 8712 135 135 1.49% 1.55%

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 15 239 1689506 7857.64 1046 1019 214.9
A 14 254 32758 147.7 1046 1019 214.9
A 15 174 18027 79.15 1046 1019 214.9
B 4 239 1019752 4948.44 1049 1021 205.9
B 4 81 141055 680.21 1049 1021 205.9
B 0 214 36839 173.98 1049 1021 205.9
C 14 234 32700 130.88 1027 1029 242.0
C 13 61 7625 27.26 1027 1029 242.0
C 8 128 4471 14.22 1027 1029 242.0
D 1 52 604082 2446.44 1011 981 246.5
D 8 195 203699 822.31 1011 981 246.5
D 10 172 200864 810.81 1011 981 246.5

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