ASTROSAT CZTI

Data Quality Report

Orbit 10252

Creation date: 2024-06-27T15:56:54.222559
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_052T01_9000001480_10252cztM0_level2.evt modeM0/AS1A03_052T01_9000001480_10252cztM0_level2_quad_clean.evt
Size (bytes)565,816,320104,705,280
Size539.6 MB 99.9 MB
Events in quadrant A3,568,384675,206
Events in quadrant B4,009,450679,859
Events in quadrant C3,459,886663,611
Events in quadrant D5,580,721621,601

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01594337
B01706964
C01583949
D02187299

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7642620.811306%
B76331321.729333%
C7635240.314342%
D76343294.309667%

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 8153 7660 0 0 0.00% 0.00%
B 8153 7658 38 38 0.47% 0.50%
C 8153 7660 0 0 0.00% 0.00%
D 8153 7659 174 174 2.13% 2.27%

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 3 1 25225 129.72 917 899 187.5
A 0 226 8538 40.73 917 899 187.5
A 12 194 7830 36.96 917 899 187.5
B 11 51 108744 609.63 915 893 176.9
B 4 239 102181 572.53 915 893 176.9
B 10 247 79197 442.61 915 893 176.9
C 0 207 11069 49.43 881 886 206.0
C 13 61 6629 27.88 881 886 206.0
C 14 67 4084 15.52 881 886 206.0
D 8 195 868649 4081.11 871 846 212.6
D 13 137 748091 3514.15 871 846 212.6
D 1 52 217878 1020.66 871 846 212.6

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