ASTROSAT CZTI

Data Quality Report

Orbit 34029

Creation date: 2024-06-27T20:55:35.854555
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/AS1A06_003T04_9000004866_34029cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34029cztM0_level2_quad_clean.evt
Size (bytes)497,658,24052,418,880
Size474.6 MB 50.0 MB
Events in quadrant A2,753,378312,425
Events in quadrant B3,432,539310,375
Events in quadrant C4,362,425304,153
Events in quadrant D4,161,759286,343

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114023
B0136902
C0164202
D0160492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5335160.299906%
B53351262.361762%
C53353877.253983%
D53353105.810684%

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 7188 5336 8 8 0.11% 0.15%
B 7188 5335 97 97 1.35% 1.82%
C 7188 5336 323 323 4.49% 6.05%
D 7188 5336 255 255 3.55% 4.78%

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 15 169 88532 664.19 667 655 132.3
A 0 31 52621 392.77 667 655 132.3
A 10 83 17709 128.9 667 655 132.3
B 5 172 443483 3529.79 660 644 125.5
B 0 189 151274 1200.64 660 644 125.5
B 0 219 77391 611.74 660 644 125.5
C 4 254 1060115 7392.51 624 630 143.3
C 0 10 403929 2814.0 624 630 143.3
C 15 214 241698 1682.04 624 630 143.3
D 8 195 491083 3167.8 628 611 154.8
D 2 249 363980 2346.88 628 611 154.8
D 10 118 323802 2087.39 628 611 154.8

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