ASTROSAT CZTI

Data Quality Report

Orbit 43483

Creation date: 2024-06-27T22:52:30.950145
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/AS1A12_018T01_9000005874_43483cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43483cztM0_level2_quad_clean.evt
Size (bytes)401,060,16084,597,120
Size382.5 MB 80.7 MB
Events in quadrant A3,173,169581,216
Events in quadrant B2,864,949589,829
Events in quadrant C2,482,570552,965
Events in quadrant D5,909,528463,072

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128531
B0120211
C0107802
D0212981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5348140.261780%
B5348180.336574%
C534720.037404%
D534768112.736114%

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 6930 5349 6 6 0.09% 0.11%
B 6930 5349 9 9 0.13% 0.17%
C 6929 5348 0 0 0.00% 0.00%
D 6929 5348 682 682 9.84% 12.75%

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 571274 4829.14 571 559 118.2
A 15 222 342498 2893.34 571 559 118.2
A 15 237 33824 281.47 571 559 118.2
B 0 189 152843 1391.31 566 551 109.5
B 0 190 146434 1332.76 566 551 109.5
B 5 255 90169 818.73 566 551 109.5
C 15 214 219105 1691.88 554 556 129.2
C 3 233 80598 619.64 554 556 129.2
C 12 2 5978 41.97 554 556 129.2
D 1 52 1243390 9538.94 530 512 130.3
D 2 16 537566 4121.83 530 512 130.3
D 13 249 514819 3947.25 530 512 130.3

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