ASTROSAT CZTI

Data Quality Report

Orbit 45233

Creation date: 2024-06-27T23:11:10.473928
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_038T03_9000006058_45233cztM0_level2.fits modeM0/AS1A13_038T03_9000006058_45233cztM0_level2_quad_clean.evt
Size (bytes)264,525,12051,177,600
Size252.3 MB 48.8 MB
Events in quadrant A2,750,010341,131
Events in quadrant B1,720,312363,293
Events in quadrant C1,645,677356,493
Events in quadrant D3,422,558257,782

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011129672
B07726421
C07448338
D0135211225

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0702
B0700
C0680
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32281213.748451%
B3265451.378254%
C327850.152532%
D316864620.391414%

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 3480 3410 35 35 1.01% 1.03%
B 3480 3418 12 12 0.34% 0.35%
C 3480 3412 2 2 0.06% 0.06%
D 3479 3350 566 566 16.27% 16.90%

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 10 83 1081208 12777.41 393 384 84.6
A 13 248 143487 1691.75 393 384 84.6
A 3 137 4754 51.66 393 384 84.6
B 15 36 48521 590.41 395 383 81.5
B 5 255 36971 448.75 395 383 81.5
B 5 32 30964 375.08 395 383 81.5
C 14 254 36077 374.64 396 400 95.2
C 12 2 29508 305.66 396 400 95.2
C 3 233 17581 180.42 396 400 95.2
D 4 232 1068307 11464.84 360 349 93.2
D 13 249 442740 4749.2 360 349 93.2
D 7 96 120252 1287.19 360 349 93.2

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