ASTROSAT CZTI

Data Quality Report

Orbit 23708

Creation date: 2024-06-27T18:57:44.913622
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/AS1A07_054T01_9000003504_23708cztM0_level2.evt modeM0/AS1A07_054T01_9000003504_23708cztM0_level2_quad_clean.evt
Size (bytes)469,477,440134,426,880
Size447.7 MB 128.2 MB
Events in quadrant A3,025,070915,721
Events in quadrant B3,298,721940,309
Events in quadrant C3,283,642917,794
Events in quadrant D4,190,931866,338

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131712
B0139572
C0138502
D0167342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6181180.291215%
B6181570.922181%
C6181871.407539%
D61812243.624009%

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 7496 6182 0 0 0.00% 0.00%
B 7496 6182 25 25 0.33% 0.40%
C 7496 6182 0 0 0.00% 0.00%
D 7496 6182 199 199 2.65% 3.22%

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 13 254 10004 59.88 785 771 154.2
A 0 226 6832 39.31 785 771 154.2
A 3 137 6364 36.28 785 771 154.2
B 14 207 102592 705.36 792 772 144.4
B 0 229 49360 336.6 792 772 144.4
B 0 189 39097 265.5 792 772 144.4
C 14 238 125849 699.92 778 784 178.7
C 8 30 70747 391.54 778 784 178.7
C 8 13 42722 234.7 778 784 178.7
D 1 52 1023739 5556.94 767 747 184.1
D 9 85 142127 767.98 767 747 184.1
D 13 174 72186 388.06 767 747 184.1

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