ASTROSAT CZTI

Data Quality Report

Orbit 43388

Creation date: 2024-06-27T22:51:23.726517
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/AS1A12_018T01_9000005874_43388cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43388cztM0_level2_quad_clean.evt
Size (bytes)6,399,360763,200
Size6.1 MB 745.3 KB
Events in quadrant A55,6771,869
Events in quadrant B43,6391,591
Events in quadrant C50,8351,926
Events in quadrant D74,4041,482

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02310
B02180
C02290
D03034

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10900.000000%
B10900.000000%
C10900.000000%
D10832.777778%

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 109 109 0 0 0.00% 0.00%
B 109 109 0 0 0.00% 0.00%
C 109 109 0 0 0.00% 0.00%
D 108 108 4 4 3.70% 3.70%

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 10 83 8024 1924.12 11 10 4.2
A 15 237 4229 1012.96 11 10 4.2
A 13 248 261 60.26 11 10 4.2
B 12 111 302 75.15 10 10 3.9
B 11 111 271 67.17 10 10 3.9
B 14 111 259 64.08 10 10 3.9
C 15 214 4141 1018.11 10 10 4.1
C 5 1 3085 757.86 10 10 4.1
C 15 111 1491 365.0 10 10 4.1
D 12 6 32169 7596.4 10 9 4.2
D 1 52 2104 494.85 10 9 4.2
D 13 249 600 139.6 10 9 4.2

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