ASTROSAT CZTI

Data Quality Report

Orbit 12060

Creation date: 2024-06-27T16:21:52.674205
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/AS1A03_085T02_9000001784_12060cztM0_level2.evt modeM0/AS1A03_085T02_9000001784_12060cztM0_level2_quad_clean.evt
Size (bytes)548,902,08097,067,520
Size523.5 MB 92.6 MB
Events in quadrant A3,541,098628,447
Events in quadrant B5,230,797602,905
Events in quadrant C3,253,223613,187
Events in quadrant D4,107,348591,015

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154113
B0204362
C0147562
D0170912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7238670.925670%
B72384986.880354%
C7238180.248687%
D72381822.514507%

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 7764 7240 6 6 0.08% 0.08%
B 7764 7240 268 268 3.45% 3.70%
C 7764 7240 0 0 0.00% 0.00%
D 7764 7240 136 136 1.75% 1.88%

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 5 16 63588 357.56 859 842 175.5
A 1 162 57042 320.26 859 842 175.5
A 13 251 36889 205.42 859 842 175.5
B 4 239 1052831 6445.18 844 823 163.2
B 0 85 362021 2212.9 844 823 163.2
B 4 206 296970 1814.36 844 823 163.2
C 8 128 6937 31.74 830 835 192.2
C 13 61 5998 26.86 830 835 192.2
C 8 112 3842 15.64 830 835 192.2
D 1 52 856059 4295.19 824 800 199.1
D 8 195 76267 379.0 824 800 199.1
D 10 50 32550 159.45 824 800 199.1

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