ASTROSAT CZTI

Data Quality Report

Orbit 10423

Creation date: 2024-06-27T15:59:56.751371
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/AS1G07_068T02_9000001508_10423cztM0_level2.evt modeM0/AS1G07_068T02_9000001508_10423cztM0_level2_quad_clean.evt
Size (bytes)1,233,725,760188,167,680
Size1.1 GB 179.5 MB
Events in quadrant A10,189,8051,129,739
Events in quadrant B8,971,1011,189,958
Events in quadrant C7,070,4491,221,706
Events in quadrant D10,152,1371,155,053

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037872
B037874
C037875
D036968

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05471614873
B05005514182
C0388108138
D05049010532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A140984743.362179%
B142545673.977831%
C147721791.211752%
D149225693.813162%

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 18849 14757 120 120 0.64% 0.81%
B 18849 14838 227 227 1.20% 1.53%
C 18849 15246 15 15 0.08% 0.10%
D 18849 15185 333 333 1.77% 2.19%

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 13 251 3512844 10143.65 1722 1683 346.1
A 14 254 24084 64.72 1722 1683 346.1
A 13 248 18963 49.92 1722 1683 346.1
B 4 239 1710678 5229.58 1737 1695 326.8
B 4 81 258381 785.47 1737 1695 326.8
B 0 214 117976 355.83 1737 1695 326.8
C 14 234 71864 170.04 1792 1803 412.0
C 13 61 12969 27.1 1792 1803 412.0
C 14 67 9343 18.3 1792 1803 412.0
D 2 33 1096557 2554.99 1790 1741 428.5
D 8 195 968681 2256.56 1790 1741 428.5
D 1 20 611651 1423.35 1790 1741 428.5

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