ASTROSAT CZTI

Data Quality Report

Orbit 47730

Creation date: 2024-07-26T06:49:39.234538
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/AS1T05_213T01_9000006344_47730cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47730cztM0_level2_quad_clean.evt
Size (bytes)1,502,838,720298,514,880
Size1.4 GB 284.7 MB
Events in quadrant A19,643,4491,951,770
Events in quadrant B9,861,5192,025,379
Events in quadrant C8,844,8211,984,183
Events in quadrant D15,777,2631,735,092

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03940
B03940
C03940
D03940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0713043
B0433373
C0414233
D0605643

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A194788844.538454%
B194785142.638875%
C194792291.175625%
D1947912286.304225%

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 21013 19482 119 119 0.57% 0.61%
B 21013 19482 103 103 0.49% 0.53%
C 21014 19483 92 92 0.44% 0.47%
D 21014 19483 944 944 4.49% 4.85%

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 10917502 24907.66 2119 2072 438.2
A 9 191 258704 585.6 2119 2072 438.2
A 7 3 231799 524.21 2119 2072 438.2
B 0 200 864035 2082.34 2112 2044 414.0
B 5 172 235374 563.66 2112 2044 414.0
B 5 255 151972 362.19 2112 2044 414.0
C 12 2 594102 1205.0 2098 2103 491.3
C 14 254 61948 121.81 2098 2103 491.3
C 12 250 14004 24.22 2098 2103 491.3
D 2 165 5921481 11473.02 2069 2002 515.9
D 10 181 908675 1757.3 2069 2002 515.9
D 2 249 249880 480.43 2069 2002 515.9

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