ASTROSAT CZTI

Data Quality Report

Orbit 08527

Creation date: 2024-06-27T15:33:53.291285
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/AS1G07_060T01_9000001200_08527cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08527cztM0_level2_quad_clean.evt
Size (bytes)439,269,12071,642,880
Size418.9 MB 68.3 MB
Events in quadrant A3,058,477435,453
Events in quadrant B3,269,646439,041
Events in quadrant C2,916,517430,662
Events in quadrant D3,618,940413,127

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134625
B0139532
C0132542
D0152757

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6470570.880989%
B64711342.070777%
C6471270.417246%
D6469620.958417%

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 7496 6471 3 3 0.04% 0.05%
B 7496 6472 34 34 0.45% 0.53%
C 7496 6472 0 0 0.00% 0.00%
D 7496 6472 33 33 0.44% 0.51%

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 15 223 28159 175.56 773 755 156.1
A 13 248 26672 166.03 773 755 156.1
A 15 239 12045 72.33 773 755 156.1
B 10 16 149065 1005.13 772 755 147.6
B 0 214 49222 328.47 772 755 147.6
B 5 255 23382 153.35 772 755 147.6
C 13 61 5619 27.84 747 751 174.9
C 8 222 3506 15.76 747 751 174.9
C 3 202 1922 6.7 747 751 174.9
D 1 52 547962 2987.06 735 717 183.2
D 12 233 231567 1260.06 735 717 183.2
D 2 234 19976 105.12 735 717 183.2

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