ASTROSAT CZTI

Data Quality Report

Orbit 34022

Creation date: 2024-06-27T20:55:31.999411
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_34022cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34022cztM0_level2_quad_clean.evt
Size (bytes)705,136,32070,338,240
Size672.5 MB 67.1 MB
Events in quadrant A2,756,368480,815
Events in quadrant B8,840,575342,392
Events in quadrant C3,437,195462,339
Events in quadrant D5,920,199428,858

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120173
B0303052
C0136532
D0217862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A593190.151745%
B5931246941.628730%
C5931490.826168%
D593181513.741359%

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 7243 5931 0 0 0.00% 0.00%
B 7242 5930 2333 2333 32.21% 39.34%
C 7242 5930 38 38 0.52% 0.64%
D 7243 5931 766 766 10.58% 12.92%

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 56862 408.33 689 677 137.6
A 10 83 18710 131.06 689 677 137.6
A 13 6 12758 87.8 689 677 137.6
B 5 31 2618549 23833.37 565 550 109.8
B 5 15 1882008 17128.16 565 550 109.8
B 5 172 1261310 11477.53 565 550 109.8
C 3 233 311192 2018.11 665 670 153.9
C 15 214 276424 1792.15 665 670 153.9
C 0 10 164859 1067.08 665 670 153.9
D 12 233 1365446 8387.85 634 616 162.7
D 8 195 815301 5006.82 634 616 162.7
D 2 249 504641 3097.59 634 616 162.7

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