ASTROSAT CZTI

Data Quality Report

Orbit 20221001_T05_059T01_9000005354_level2

Creation date: 2022-10-19T16:45:34.016907
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/AS1T05_059T01_9000005354cztM0_level2.fits modeM0/AS1T05_059T01_9000005354cztM0_level2_quad_clean.evt
Size (bytes)1,375,292,1601,533,807,360
Size1.3 GB 1.4 GB
Events in quadrant A8,413,2369,516,745
Events in quadrant B7,966,6829,390,839
Events in quadrant C8,290,4449,473,407
Events in quadrant D6,921,0088,019,582

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03357740
B03604190
C03153980
D04382860

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030000
B030000
C030000
D030000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05910
B05910
C05910
D05920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14672926081.777426%
B14672944123.006904%
C1467299550.650860%
D146728118308.062537%

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 209107 146701 0 0 0.00% 0.00%
B 209107 146643 0 0 0.00% 0.00%
C 209107 146725 0 0 0.00% 0.00%
D 209107 146488 0 0 0.00% 0.00%

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 7 110 6923 9.1 2203 2087 531.6
A 0 29 6841 8.94 2203 2087 531.6
A 9 19 6794 8.85 2203 2087 531.6
B 2 9 6847 11.92 2117 2036 403.7
B 3 80 6469 10.98 2117 2036 403.7
B 5 128 5665 8.99 2117 2036 403.7
C 1 81 7077 9.06 2193 2070 552.6
C 1 80 6766 8.5 2193 2070 552.6
C 3 202 6687 8.35 2193 2070 552.6
D 10 189 5300 6.67 1987 1818 522.1
D 7 3 5169 6.42 1987 1818 522.1
D 4 160 5158 6.4 1987 1818 522.1

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