ASTROSAT CZTI

Data Quality Report

Orbit 47974

Creation date: 2024-08-11T17:07:07.254714
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_062T02_9000006384_47974cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47974cztM0_level2_quad_clean.evt
Size (bytes)447,600,960111,487,680
Size426.9 MB 106.3 MB
Events in quadrant A6,748,195729,742
Events in quadrant B3,079,978758,948
Events in quadrant C3,032,757729,898
Events in quadrant D3,159,938666,036

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250720
B0144190
C0145540
D0148700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7053961.361123%
B7054210.297703%
C7054180.255174%
D7054220.311880%

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 7053 7053 1 1 0.01% 0.01%
B 7054 7054 0 0 0.00% 0.00%
C 7054 7054 15 15 0.21% 0.21%
D 7054 7054 20 20 0.28% 0.28%

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 3794217 23659.87 763 743 160.3
A 3 137 8779 50.12 763 743 160.3
A 13 254 8408 47.81 763 743 160.3
B 7 221 23880 152.85 763 738 151.4
B 12 111 19409 123.32 763 738 151.4
B 11 111 18160 115.07 763 738 151.4
C 12 2 75096 417.17 752 756 178.2
C 14 254 19317 104.16 752 756 178.2
C 13 61 5148 24.65 752 756 178.2
D 11 224 100797 529.29 753 729 189.1
D 2 249 69957 366.17 753 729 189.1
D 2 234 36075 186.95 753 729 189.1

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