ASTROSAT CZTI

Data Quality Report

Orbit 43740

Creation date: 2024-06-27T22:55:13.536492
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/AS1A13_003T01_9000005902_43740cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43740cztM0_level2_quad_clean.evt
Size (bytes)702,843,840132,727,680
Size670.3 MB 126.6 MB
Events in quadrant A5,605,788900,832
Events in quadrant B5,174,818930,366
Events in quadrant C5,450,167898,217
Events in quadrant D9,142,455711,130

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221130
B0211440
C0218900
D0330973

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83122803.368624%
B83122813.380654%
C83122382.863330%
D8312143517.264196%

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 8312 8312 138 138 1.66% 1.66%
B 8312 8311 129 129 1.55% 1.55%
C 8312 8312 206 206 2.48% 2.48%
D 8312 8312 872 872 10.49% 10.49%

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 967449 4750.46 969 948 203.5
A 15 174 410713 2014.04 969 948 203.5
A 15 223 274154 1342.84 969 948 203.5
B 5 235 814469 4305.0 960 931 189.0
B 0 200 160340 843.54 960 931 189.0
B 12 3 134538 707.01 960 931 189.0
C 15 158 927351 4091.82 954 957 226.4
C 3 233 247148 1087.41 954 957 226.4
C 15 157 200105 879.62 954 957 226.4
D 4 212 1882502 8055.88 894 864 233.6
D 8 48 818571 3500.86 894 864 233.6
D 5 235 579669 2478.04 894 864 233.6

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