ASTROSAT CZTI

Data Quality Report

Orbit 07713

Creation date: 2024-06-27T15:23:00.054651
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/AS1A02_158T01_9000001064_07713cztM0_level2.evt modeM0/AS1A02_158T01_9000001064_07713cztM0_level2_quad_clean.evt
Size (bytes)428,754,24082,848,960
Size408.9 MB 79.0 MB
Events in quadrant A2,838,815527,012
Events in quadrant B2,924,874538,484
Events in quadrant C3,384,957526,366
Events in quadrant D3,426,087495,714

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123452
B0125271
C0139401
D0141561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6032110.182361%
B6032300.497347%
C60321602.652520%
D60322143.547745%

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 7292 6033 0 0 0.00% 0.00%
B 7292 6033 6 6 0.08% 0.10%
C 7292 6033 101 101 1.39% 1.67%
D 7292 6033 189 189 2.59% 3.13%

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 12 112 7582 45.99 735 720 149.2
A 0 226 7045 42.39 735 720 149.2
A 12 194 6530 38.94 735 720 149.2
B 4 239 35122 247.46 738 719 139.0
B 12 111 13656 93.05 738 719 139.0
B 10 245 11675 78.81 738 719 139.0
C 9 68 555891 3320.91 723 729 167.2
C 13 61 5754 30.06 723 729 167.2
C 8 222 3789 18.3 723 729 167.2
D 12 221 581738 3370.44 713 693 172.4
D 13 112 38282 218.04 713 693 172.4
D 9 101 38185 217.48 713 693 172.4

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