ASTROSAT CZTI

Data Quality Report

Orbit 38219

Creation date: 2024-06-27T21:49:55.854180
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/AS1A07_145T01_9000005370_38219cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38219cztM0_level2_quad_clean.evt
Size (bytes)335,496,96091,601,280
Size320.0 MB 87.4 MB
Events in quadrant A2,797,360614,735
Events in quadrant B2,718,288634,310
Events in quadrant C2,835,909605,788
Events in quadrant D3,647,519541,408

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114813
B0116562
C0116602
D0145252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5392140.259644%
B5392120.222552%
C5392300.556380%
D53922474.580861%

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 7124 5393 2 2 0.03% 0.04%
B 7124 5393 4 4 0.06% 0.07%
C 7124 5393 18 18 0.25% 0.33%
D 7124 5393 208 208 2.92% 3.86%

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 376511 3025.78 607 594 124.2
A 12 189 39971 316.95 607 594 124.2
A 13 248 14021 108.07 607 594 124.2
B 0 183 239446 2026.25 606 589 117.9
B 5 172 25831 214.13 606 589 117.9
B 0 230 20892 172.23 606 589 117.9
C 15 214 224167 1618.75 590 592 138.1
C 14 254 148775 1072.89 590 592 138.1
C 9 236 83764 602.19 590 592 138.1
D 13 138 581583 4120.43 581 565 141.0
D 1 52 331149 2344.42 581 565 141.0
D 2 16 154266 1090.01 581 565 141.0

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