ASTROSAT CZTI

Data Quality Report

Orbit 13546

Creation date: 2024-06-27T16:42:24.173393
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/AS1T02_038T01_9000001994_13546cztM0_level2.evt modeM0/AS1T02_038T01_9000001994_13546cztM0_level2_quad_clean.evt
Size (bytes)470,828,160106,453,440
Size449.0 MB 101.5 MB
Events in quadrant A3,228,650724,402
Events in quadrant B3,515,876721,036
Events in quadrant C3,369,882713,528
Events in quadrant D3,760,405669,096

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132552
B0140471
C0139531
D0150881

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5670911.604938%
B56702003.527337%
C5670490.864198%
D56701292.275132%

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 6876 5671 12 12 0.17% 0.21%
B 6876 5671 87 87 1.27% 1.53%
C 6876 5671 0 0 0.00% 0.00%
D 6876 5671 51 51 0.74% 0.90%

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 15 69 56102 318.39 809 797 173.7
A 1 162 30985 173.79 809 797 173.7
A 10 229 10628 56.6 809 797 173.7
B 0 182 166820 1053.37 789 777 157.6
B 5 32 116471 733.95 789 777 157.6
B 0 189 43569 271.47 789 777 157.6
C 3 233 359497 1953.45 772 780 183.6
C 13 61 5557 26.01 772 780 183.6
C 14 234 2130 7.35 772 780 183.6
D 13 122 241881 1262.77 770 751 191.0
D 5 222 188611 983.8 770 751 191.0
D 2 14 185064 965.22 770 751 191.0

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