ASTROSAT CZTI

Data Quality Report

Orbit 47147

Creation date: 2024-06-27T23:32:16.395508
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/AS1C09_003T01_9000006298_47147cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47147cztM0_level2_quad_clean.evt
Size (bytes)558,480,960125,251,200
Size532.6 MB 119.4 MB
Events in quadrant A7,754,122842,276
Events in quadrant B4,164,650854,485
Events in quadrant C3,875,124798,037
Events in quadrant D4,266,302747,651

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0288570
B0176710
C0171401
D0183830

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79101561.972187%
B7910790.998736%
C7910881.112516%
D79101061.340076%

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 7910 7910 3 3 0.04% 0.04%
B 7910 7910 15 15 0.19% 0.19%
C 7910 7910 68 68 0.86% 0.86%
D 7910 7910 81 81 1.02% 1.02%

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 4306914 23678.8 877 857 181.9
A 0 243 19392 101.92 877 857 181.9
A 13 254 12306 62.96 877 857 181.9
B 4 21 179351 1048.46 869 843 170.3
B 5 173 112195 654.02 869 843 170.3
B 0 190 94166 548.13 869 843 170.3
C 14 254 407331 2047.1 844 844 198.6
C 14 67 152434 763.42 844 844 198.6
C 15 208 20431 98.64 844 844 198.6
D 1 47 269966 1267.39 851 821 212.4
D 2 249 165428 775.13 851 821 212.4
D 8 48 109552 512.01 851 821 212.4

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