ASTROSAT CZTI

Data Quality Report

Orbit 07552

Creation date: 2024-06-27T15:21:26.485294
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_164T01_9000001040_07552cztM0_level2.evt modeM0/AS1G06_164T01_9000001040_07552cztM0_level2_quad_clean.evt
Size (bytes)450,630,72078,710,400
Size429.8 MB 75.1 MB
Events in quadrant A3,275,933477,256
Events in quadrant B3,329,358486,953
Events in quadrant C3,267,423476,380
Events in quadrant D3,298,832455,380

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143883
B0144342
C0144042
D0147172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7005921.313348%
B7005991.413276%
C7005620.885082%
D70051031.470378%

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 9040 7005 0 0 0.00% 0.00%
B 9040 7005 0 0 0.00% 0.00%
C 9040 7005 0 0 0.00% 0.00%
D 9040 7005 21 21 0.23% 0.30%

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 8010 41.64 849 831 172.4
A 12 194 7275 37.38 849 831 172.4
A 15 239 4183 19.44 849 831 172.4
B 12 111 16828 98.46 854 832 162.5
B 0 214 13620 78.71 854 832 162.5
B 11 111 13251 76.44 854 832 162.5
C 9 68 46752 241.59 820 823 190.1
C 13 61 6542 30.08 820 823 190.1
C 8 222 5632 25.3 820 823 190.1
D 2 14 95235 470.33 819 792 200.8
D 2 152 43340 211.89 819 792 200.8
D 2 136 17936 85.38 819 792 200.8

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