ASTROSAT CZTI

Data Quality Report

Orbit 14705

Creation date: 2024-06-27T16:58:41.713495
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_057T09_9000002174_14705cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14705cztM0_level2_quad_clean.evt
Size (bytes)496,624,320116,311,680
Size473.6 MB 110.9 MB
Events in quadrant A3,394,422787,648
Events in quadrant B3,333,669776,296
Events in quadrant C4,624,253763,969
Events in quadrant D3,265,291759,860

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141493
B0140062
C0185522
D0137542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62361051.683772%
B6236971.555484%
C62361312.100706%
D6236861.379089%

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 7527 6237 2 2 0.03% 0.03%
B 7527 6237 0 0 0.00% 0.00%
C 7527 6237 18 18 0.24% 0.29%
D 7527 6237 1 1 0.01% 0.02%

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 12 189 69053 403.07 854 839 169.2
A 9 143 17591 98.99 854 839 169.2
A 8 15 14551 81.02 854 839 169.2
B 0 205 24021 149.03 838 822 155.7
B 0 214 20448 126.08 838 822 155.7
B 12 111 17512 107.22 838 822 155.7
C 3 233 1394899 7388.17 827 832 188.7
C 13 61 5882 26.76 827 832 188.7
C 0 207 2883 10.87 827 832 188.7
D 12 110 34284 166.4 834 815 201.1
D 1 255 23948 115.01 834 815 201.1
D 2 234 23369 112.14 834 815 201.1

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