ASTROSAT CZTI

Data Quality Report

Orbit 13575

Creation date: 2024-06-27T16:42:54.295165
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/AS1G08_047T01_9000002002_13575cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13575cztM0_level2_quad_clean.evt
Size (bytes)488,053,44066,712,320
Size465.4 MB 63.6 MB
Events in quadrant A3,294,018397,697
Events in quadrant B3,964,224393,158
Events in quadrant C3,472,328403,011
Events in quadrant D3,621,379385,038

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136083
B0157192
C0140512
D0146592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6320661.044304%
B63202453.876582%
C6320630.996835%
D6320851.344937%

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 7581 6321 2 2 0.03% 0.03%
B 7581 6321 146 146 1.93% 2.31%
C 7581 6321 0 0 0.00% 0.00%
D 7581 6321 31 31 0.41% 0.49%

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 1 162 16933 95.69 845 832 168.3
A 15 69 13622 76.01 845 832 168.3
A 0 226 7832 41.6 845 832 168.3
B 0 182 479916 3051.08 839 822 157.0
B 0 214 58683 368.48 839 822 157.0
B 0 85 54347 340.87 839 822 157.0
C 3 233 249368 1327.83 825 831 187.2
C 13 61 6010 27.67 825 831 187.2
C 0 207 5581 25.38 825 831 187.2
D 5 222 194247 993.93 822 800 194.6
D 1 20 147828 755.43 822 800 194.6
D 8 195 59945 303.89 822 800 194.6

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