ASTROSAT CZTI

Data Quality Report

Orbit 33167

Creation date: 2024-06-27T20:45:39.745243
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/AS1A11_080T02_9000004768_33167cztM0_level2.evt modeM0/AS1A11_080T02_9000004768_33167cztM0_level2_quad_clean.evt
Size (bytes)477,613,44086,791,680
Size455.5 MB 82.8 MB
Events in quadrant A2,666,773565,875
Events in quadrant B3,511,819560,544
Events in quadrant C2,930,693560,961
Events in quadrant D4,959,022533,029

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117563
B0143612
C0125942
D0189102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A584140.068481%
B58412153.680877%
C58411061.814758%
D58413135.358671%

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 7242 5842 0 0 0.00% 0.00%
B 7242 5842 117 117 1.62% 2.00%
C 7242 5842 71 71 0.98% 1.22%
D 7242 5842 223 223 3.08% 3.82%

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 6 11602 78.78 686 671 138.7
A 13 254 9790 65.72 686 671 138.7
A 3 137 6535 42.26 686 671 138.7
B 5 172 521568 4030.63 674 656 129.2
B 0 197 141883 1092.76 674 656 129.2
B 0 190 58793 449.84 674 656 129.2
C 0 10 249300 1617.52 660 665 153.7
C 1 241 34040 217.12 660 665 153.7
C 14 67 27300 173.28 660 665 153.7
D 8 195 902430 5457.85 648 633 165.2
D 1 47 411901 2489.08 648 633 165.2
D 10 203 355947 2150.43 648 633 165.2

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