ASTROSAT CZTI

Data Quality Report

Orbit 14517

Creation date: 2024-06-27T16:56:18.049851
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/AS1G08_066T01_9000002138_14517cztM0_level2.evt modeM0/AS1G08_066T01_9000002138_14517cztM0_level2_quad_clean.evt
Size (bytes)494,573,76090,311,040
Size471.7 MB 86.1 MB
Events in quadrant A3,566,696587,832
Events in quadrant B3,478,983600,082
Events in quadrant C3,506,150587,451
Events in quadrant D4,006,416527,614

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145223
B0143832
C0142482
D0157842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61851362.198868%
B61851352.182700%
C6185701.131770%
D61855258.488278%

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 8791 6188 4 4 0.05% 0.06%
B 8791 6188 3 3 0.03% 0.05%
C 8791 6188 0 0 0.00% 0.00%
D 8791 6188 219 219 2.49% 3.54%

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 8 15 297137 1758.46 840 823 168.5
A 12 189 37023 214.82 840 823 168.5
A 0 226 7474 39.47 840 823 168.5
B 0 189 61789 390.04 843 825 156.3
B 4 142 35412 221.28 843 825 156.3
B 0 197 22375 137.87 843 825 156.3
C 3 233 269688 1419.26 826 833 189.4
C 10 22 6408 29.43 826 833 189.4
C 13 61 5923 26.87 826 833 189.4
D 10 199 906406 4570.09 783 764 198.2
D 12 110 75580 377.54 783 764 198.2
D 10 70 27236 133.58 783 764 198.2

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