ASTROSAT CZTI

Data Quality Report

Orbit 20221012_A11_047T09_9000005362_level2

Creation date: 2022-10-20T18:34:41.588707
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/AS1A11_047T09_9000005362cztM0_level2.fits modeM0/AS1A11_047T09_9000005362cztM0_level2_quad_clean.evt
Size (bytes)1,507,800,9601,605,297,600
Size1.4 GB 1.5 GB
Events in quadrant A9,259,41410,020,744
Events in quadrant B8,855,1589,977,654
Events in quadrant C8,933,1429,250,742
Events in quadrant D7,542,1308,304,599

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03597320
B03606930
C04041850
D05211540

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033060
B033060
C033060
D033060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06180
B06180
C06180
D06200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1614957060.437165%
B16152126371.632605%
C16150956223.480921%
D161487155289.615635%

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 262862 161515 0 0 0.00% 0.00%
B 262862 161494 0 0 0.00% 0.00%
C 262862 161352 0 0 0.00% 0.00%
D 262862 161331 0 0 0.00% 0.00%

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 0 29 7517 8.75 2421 2270 599.4
A 9 19 7482 8.69 2421 2270 599.4
A 7 110 7389 8.54 2421 2270 599.4
B 2 9 7589 11.73 2348 2238 456.1
B 3 80 6911 10.25 2348 2238 456.1
B 5 128 6121 8.51 2348 2238 456.1
C 1 81 7335 8.51 2364 2208 602.2
C 1 80 7060 8.06 2364 2208 602.2
C 3 202 6812 7.65 2364 2208 602.2
D 7 3 5586 6.27 2159 1964 577.9
D 10 189 5453 6.04 2159 1964 577.9
D 6 231 5440 6.01 2159 1964 577.9

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