ASTROSAT CZTI

Data Quality Report

Orbit 43370

Creation date: 2024-06-27T22:51:08.196715
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/AS1A09_143T01_9000005870_43370cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43370cztM0_level2_quad_clean.evt
Size (bytes)299,413,44090,126,720
Size285.5 MB 86.0 MB
Events in quadrant A3,056,747598,170
Events in quadrant B2,513,825615,317
Events in quadrant C2,537,232597,155
Events in quadrant D2,562,014547,581

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124162
B0110042
C0109382
D0115932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5303651.225721%
B530380.150858%
C530240.075443%
D5302430.811015%

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 7126 5304 51 51 0.72% 0.96%
B 7126 5304 1 1 0.01% 0.02%
C 7125 5303 0 0 0.00% 0.00%
D 7125 5303 30 30 0.42% 0.57%

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 588561 4870.31 583 570 120.7
A 15 237 104333 859.47 583 570 120.7
A 13 248 92579 762.11 583 570 120.7
B 0 189 125246 1115.77 583 567 111.7
B 3 112 50103 443.3 583 567 111.7
B 4 173 17395 150.6 583 567 111.7
C 15 214 219457 1614.93 577 580 135.5
C 0 207 29408 212.7 577 580 135.5
C 3 233 28399 205.26 577 580 135.5
D 12 6 73525 526.34 574 558 138.6
D 12 233 47467 338.37 574 558 138.6
D 7 96 46805 333.6 574 558 138.6

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