ASTROSAT CZTI

Data Quality Report

Orbit 45012

Creation date: 2024-06-27T23:09:00.907201
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/AS1A13_020T01_9000006040_45012cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45012cztM0_level2_quad_clean.evt
Size (bytes)583,346,880112,893,120
Size556.3 MB 107.7 MB
Events in quadrant A6,379,054737,088
Events in quadrant B4,096,525798,695
Events in quadrant C3,299,461781,435
Events in quadrant D7,291,560626,665

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235752
B0166492
C0144772
D0264352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68035367.878877%
B68022213.249044%
C6802941.381946%
D6802102615.083799%

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 7873 6804 203 203 2.58% 2.98%
B 7872 6803 34 34 0.43% 0.50%
C 7872 6803 19 19 0.24% 0.28%
D 7872 6803 761 761 9.67% 11.19%

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 10 83 2669045 15928.9 809 792 167.5
A 13 248 517188 3082.77 809 792 167.5
A 0 243 23346 134.64 809 792 167.5
B 0 189 180334 1117.63 816 793 160.6
B 0 183 154217 955.06 816 793 160.6
B 0 168 126181 780.53 816 793 160.6
C 12 2 63255 332.45 805 811 187.8
C 15 208 58264 305.87 805 811 187.8
C 14 254 28753 148.76 805 811 187.8
D 11 241 859224 4421.87 763 740 194.1
D 12 33 701851 3611.27 763 740 194.1
D 5 235 625779 3219.44 763 740 194.1

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