ASTROSAT CZTI

Data Quality Report

Orbit 17259

Creation date: 2024-06-27T17:34:12.372329
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/AS1T03_059T01_9000002554_17259cztM0_level2.evt modeM0/AS1T03_059T01_9000002554_17259cztM0_level2_quad_clean.evt
Size (bytes)511,804,80087,603,840
Size488.1 MB 83.5 MB
Events in quadrant A3,586,445541,304
Events in quadrant B3,641,504545,308
Events in quadrant C3,626,416517,912
Events in quadrant D4,122,043512,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01601558
B0159942
C0159652
D0178482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76861221.587302%
B77121682.178423%
C77122012.606328%
D77122783.604772%

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 8402 7691 1 1 0.01% 0.01%
B 8402 7715 2 2 0.02% 0.03%
C 8402 7714 0 0 0.00% 0.00%
D 8402 7715 128 128 1.52% 1.66%

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 0 23 34346 178.48 923 903 187.4
A 0 226 10006 48.58 923 903 187.4
A 3 137 7035 32.73 923 903 187.4
B 12 111 22063 118.25 926 900 179.0
B 11 111 18947 100.84 926 900 179.0
B 14 111 15753 82.99 926 900 179.0
C 14 238 135464 637.56 891 896 211.1
C 3 233 16508 73.97 891 896 211.1
C 13 61 6196 25.11 891 896 211.1
D 1 52 381171 1732.66 898 869 219.5
D 13 189 198794 901.75 898 869 219.5
D 10 70 119029 538.34 898 869 219.5

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