ASTROSAT CZTI

Data Quality Report

Orbit 05694

Creation date: 2024-06-27T14:58:03.836332
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/AS1G06_115T01_9000000734_05694cztM0_level2.evt modeM0/AS1G06_115T01_9000000734_05694cztM0_level2_quad_clean.evt
Size (bytes)446,889,60067,271,040
Size426.2 MB 64.2 MB
Events in quadrant A2,674,023416,071
Events in quadrant B3,749,683401,050
Events in quadrant C2,775,889413,334
Events in quadrant D3,930,835391,299

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121990
B0151910
C0121840
D0159190

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5941150.252483%
B59413185.352634%
C5941140.235651%
D59412243.770409%

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 5941 5941 2 2 0.03% 0.03%
B 5941 5941 252 252 4.24% 4.24%
C 5941 5941 10 10 0.17% 0.17%
D 5941 5941 166 166 2.79% 2.79%

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 50 56566 402.57 674 658 138.9
A 0 226 6577 42.62 674 658 138.9
A 12 194 6451 41.71 674 658 138.9
B 5 172 679356 5226.86 672 656 129.8
B 15 204 372194 2861.32 672 656 129.8
B 0 214 35678 269.71 672 656 129.8
C 1 16 162019 1066.85 652 656 151.3
C 1 241 25155 161.97 652 656 151.3
C 8 128 15228 96.34 652 656 151.3
D 1 239 820040 5122.47 646 622 160.0
D 12 233 247250 1541.76 646 622 160.0
D 2 152 200245 1247.91 646 622 160.0

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