ASTROSAT CZTI

Data Quality Report

Orbit 46385

Creation date: 2024-06-27T23:22:30.260379
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_070T06_9000006202_46385cztM0_level2.fits modeM0/AS1A13_070T06_9000006202_46385cztM0_level2_quad_clean.evt
Size (bytes)414,449,28096,675,840
Size395.2 MB 92.2 MB
Events in quadrant A5,139,705633,570
Events in quadrant B3,375,751652,428
Events in quadrant C2,557,135647,561
Events in quadrant D3,812,975583,586

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188791
B0140751
C0119672
D0153361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58681362.317655%
B58692354.004089%
C5868190.323790%
D58681783.033401%

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 6948 5869 14 14 0.20% 0.24%
B 6949 5870 89 89 1.28% 1.52%
C 6948 5869 3 3 0.04% 0.05%
D 6948 5869 120 120 1.73% 2.04%

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 2541019 18741.98 650 636 135.5
A 13 248 64555 471.57 650 636 135.5
A 13 254 10107 69.87 650 636 135.5
B 4 171 624523 4927.99 646 626 126.6
B 15 201 82581 647.34 646 626 126.6
B 0 190 41379 321.9 646 626 126.6
C 14 254 45134 296.36 641 645 150.1
C 1 3 9275 57.49 641 645 150.1
C 13 61 4322 24.49 641 645 150.1
D 1 52 980772 6118.55 635 616 160.2
D 13 249 115959 720.02 635 616 160.2
D 8 176 107496 667.19 635 616 160.2

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