ASTROSAT CZTI

Data Quality Report

Orbit 06517

Creation date: 2024-06-27T15:08:19.360010
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/AS1G06_136T02_9000000876_06517cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06517cztM0_level2_quad_clean.evt
Size (bytes)518,915,52095,644,800
Size494.9 MB 91.2 MB
Events in quadrant A3,517,099598,812
Events in quadrant B3,952,536602,063
Events in quadrant C3,384,978594,704
Events in quadrant D4,343,732571,130

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156552
B0170301
C0157251
D0181831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76101622.128778%
B76102022.654402%
C76101542.023653%
D76102182.864652%

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 7705 7612 1 1 0.01% 0.01%
B 7705 7612 28 28 0.36% 0.37%
C 7705 7612 1 1 0.01% 0.01%
D 7705 7612 47 47 0.61% 0.62%

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 94755 519.59 885 864 180.7
A 0 226 8453 42.0 885 864 180.7
A 12 194 8112 40.11 885 864 180.7
B 5 143 342898 2007.33 885 862 170.4
B 4 172 47194 271.91 885 862 170.4
B 0 214 43164 248.26 885 862 170.4
C 9 237 54232 269.82 849 853 197.8
C 4 254 8927 40.81 849 853 197.8
C 13 61 6859 30.36 849 853 197.8
D 2 152 276672 1320.11 853 825 209.0
D 14 34 200971 957.83 853 825 209.0
D 2 136 188935 900.23 853 825 209.0

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