ASTROSAT CZTI

Data Quality Report

Orbit 06973

Creation date: 2024-06-27T15:13:55.141211
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/AS1A02_090T02_9000000956_06973cztM0_level2.evt modeM0/AS1A02_090T02_9000000956_06973cztM0_level2_quad_clean.evt
Size (bytes)392,561,28078,952,320
Size374.4 MB 75.3 MB
Events in quadrant A2,785,888493,398
Events in quadrant B2,800,071498,099
Events in quadrant C2,707,743494,390
Events in quadrant D3,177,522476,718

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124822
B0125121
C0124351
D0135341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6128380.620104%
B6128340.554830%
C6128190.310052%
D6128320.522193%

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 7194 6129 0 0 0.00% 0.00%
B 7194 6129 5 5 0.07% 0.08%
C 7194 6129 0 0 0.00% 0.00%
D 7194 6129 5 5 0.07% 0.08%

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 13 14 18366 121.03 714 699 146.0
A 4 2 9689 61.59 714 699 146.0
A 0 226 6748 41.44 714 699 146.0
B 0 219 29094 206.57 713 694 137.5
B 12 111 13971 96.57 713 694 137.5
B 11 111 11150 76.05 713 694 137.5
C 7 247 13096 77.29 689 694 160.5
C 13 61 5233 28.29 689 694 160.5
C 3 233 4110 21.29 689 694 160.5
D 8 195 369998 2184.21 691 667 169.1
D 1 239 90030 528.49 691 667 169.1
D 2 136 64420 377.03 691 667 169.1

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