ASTROSAT CZTI

Data Quality Report

Orbit 14087

Creation date: 2024-06-27T16:50:13.204907
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_022T01_9000002078_14087cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14087cztM0_level2_quad_clean.evt
Size (bytes)635,941,440105,946,560
Size606.5 MB 101.0 MB
Events in quadrant A3,859,448702,503
Events in quadrant B5,282,242689,513
Events in quadrant C3,488,011671,632
Events in quadrant D6,124,574625,588

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164243
B0207742
C0153862
D0233632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7459901.206596%
B74596198.298700%
C7459190.254726%
D74594726.327926%

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 8640 7462 26 26 0.30% 0.35%
B 8640 7462 211 211 2.44% 2.83%
C 8640 7462 0 0 0.00% 0.00%
D 8640 7462 443 443 5.13% 5.94%

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 12 96 170103 923.73 902 882 183.2
A 9 143 121954 660.9 902 882 183.2
A 12 189 68889 371.23 902 882 183.2
B 10 16 1573271 9341.62 883 858 168.3
B 0 189 71907 422.1 883 858 168.3
B 3 209 28589 164.75 883 858 168.3
C 3 233 66879 326.63 873 874 202.1
C 13 61 6409 27.39 873 874 202.1
C 0 207 5557 23.17 873 874 202.1
D 1 52 2331302 11228.21 847 824 207.6
D 8 195 204886 983.17 847 824 207.6
D 2 152 143868 689.18 847 824 207.6

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