ASTROSAT CZTI

Data Quality Report

Orbit 34332

Creation date: 2022-02-02T19:53:20.884345
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/AS1C07_001T05_9000004902_34332cztM0_level2.evt modeM0/AS1C07_001T05_9000004902_34332cztM0_level2_quad_clean.evt
Size (bytes)449,542,08086,114,880
Size428.7 MB 82.1 MB
Events in quadrant A2,552,074566,813
Events in quadrant B2,967,214569,085
Events in quadrant C2,901,497558,599
Events in quadrant D4,822,107530,502

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111732
B0123231
C0118211
D0180101

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A546980.146279%
B5469661.206802%
C5469290.530261%
D54693716.783690%

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 7203 5470 0 0 0.00% 0.00%
B 7203 5470 45 45 0.62% 0.82%
C 7203 5470 17 17 0.24% 0.31%
D 7203 5470 279 279 3.87% 5.10%

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 21994 164.36 648 635 130.0
A 9 143 14056 103.28 648 635 130.0
A 13 6 9870 71.06 648 635 130.0
B 5 172 174262 1423.77 641 625 122.0
B 5 255 91834 747.88 641 625 122.0
B 0 229 53749 435.6 641 625 122.0
C 15 214 231286 1584.9 630 636 145.5
C 14 67 74417 506.98 630 636 145.5
C 0 10 62136 422.59 630 636 145.5
D 8 195 715747 4770.45 617 600 149.9
D 12 235 550876 3670.66 617 600 149.9
D 7 223 449866 2996.87 617 600 149.9

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