ASTROSAT CZTI

Data Quality Report

Orbit 02231

Creation date: 2024-06-27T14:15:28.634373
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/AS1T01_072T05_9000000344_02231cztM0_level2.evt modeM0/AS1T01_072T05_9000000344_02231cztM0_level2_quad_clean.evt
Size (bytes)400,256,64076,521,600
Size381.7 MB 73.0 MB
Events in quadrant A2,915,622464,311
Events in quadrant B2,974,156469,826
Events in quadrant C2,962,034467,899
Events in quadrant D2,825,754459,850

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133622
B0134052
C0134412
D0134292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6527360.551555%
B6527380.582197%
C6527350.536234%
D6527190.291099%

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 7462 6528 0 0 0.00% 0.00%
B 7462 6528 0 0 0.00% 0.00%
C 7462 6528 5 5 0.07% 0.08%
D 7462 6528 0 0 0.00% 0.00%

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 12 194 8389 49.08 756 739 155.9
A 0 226 8184 47.77 756 739 155.9
A 3 1 4898 26.69 756 739 155.9
B 12 111 10902 68.48 769 749 148.3
B 11 111 9310 57.74 769 749 148.3
B 8 61 7780 47.42 769 749 148.3
C 10 34 29095 160.87 743 745 176.2
C 1 192 14056 75.53 743 745 176.2
C 13 61 6731 33.97 743 745 176.2
D 2 63 20658 113.71 732 714 175.4
D 2 31 13539 73.12 732 714 175.4
D 15 194 13513 72.97 732 714 175.4

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