ASTROSAT CZTI

Data Quality Report

Orbit 43096

Creation date: 2024-06-27T22:47:58.290600
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_153T01_9000005848_43096cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43096cztM0_level2_quad_clean.evt
Size (bytes)334,512,00084,064,320
Size319.0 MB 80.2 MB
Events in quadrant A3,647,445554,852
Events in quadrant B3,108,703583,168
Events in quadrant C2,452,317557,042
Events in quadrant D2,797,140511,261

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138231
B0123501
C0102521
D0116251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48363376.968569%
B48361713.535980%
C4836130.268817%
D48361152.377998%

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 6839 4837 269 269 3.93% 5.56%
B 6839 4837 118 118 1.73% 2.44%
C 6839 4837 14 14 0.20% 0.29%
D 6839 4837 92 92 1.35% 1.90%

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 15 237 959581 8716.03 536 525 110.0
A 10 83 458016 4157.74 536 525 110.0
A 12 189 155782 1411.0 536 525 110.0
B 0 229 829505 8074.84 538 523 102.7
B 0 189 55444 534.96 538 523 102.7
B 0 245 43359 417.25 538 523 102.7
C 15 214 200268 1634.66 528 532 122.2
C 2 16 92764 754.84 528 532 122.2
C 14 254 80183 651.87 528 532 122.2
D 1 52 345033 2715.39 528 514 126.9
D 5 32 192843 1515.88 528 514 126.9
D 13 249 75241 588.97 528 514 126.9

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