ASTROSAT CZTI

Data Quality Report

Orbit 07125

Creation date: 2024-06-27T15:15:55.749877
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_051T01_9000000972_07125cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07125cztM0_level2_quad_clean.evt
Size (bytes)546,341,76082,848,960
Size521.0 MB 79.0 MB
Events in quadrant A3,699,597495,404
Events in quadrant B4,150,950503,124
Events in quadrant C3,754,483495,789
Events in quadrant D4,416,884477,227

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162092
B0173741
C0165551
D0182781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77212292.965937%
B77212703.496956%
C77212212.862324%
D77212563.315633%

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 7911 7721 0 0 0.00% 0.00%
B 7911 7721 16 16 0.20% 0.21%
C 7911 7721 8 8 0.10% 0.10%
D 7911 7721 34 34 0.43% 0.44%

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 8 15 34151 168.19 951 930 197.5
A 0 226 9006 40.89 951 930 197.5
A 12 194 8438 38.01 951 930 197.5
B 4 173 118819 638.31 947 924 184.7
B 0 214 94089 504.42 947 924 184.7
B 4 251 87815 470.45 947 924 184.7
C 4 254 118416 540.95 922 924 217.2
C 9 68 23660 104.68 922 924 217.2
C 10 22 9302 38.57 922 924 217.2
D 2 216 463145 2003.58 926 894 230.7
D 8 195 332899 1439.04 926 894 230.7
D 12 233 52945 225.61 926 894 230.7

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