ASTROSAT CZTI

Data Quality Report

Orbit 22322

Creation date: 2024-06-27T18:39:27.540771
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/AS1A07_149T01_9000003304_22322cztM0_level2.evt modeM0/AS1A07_149T01_9000003304_22322cztM0_level2_quad_clean.evt
Size (bytes)416,102,40095,938,560
Size396.8 MB 91.5 MB
Events in quadrant A2,983,140622,854
Events in quadrant B3,059,737638,743
Events in quadrant C3,080,536610,527
Events in quadrant D3,052,089596,105

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127251
B0128241
C0128192
D0131461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6263480.766406%
B6263641.021875%
C6262961.533057%
D6263631.005908%

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 7263 6264 0 0 0.00% 0.00%
B 7263 6264 1 1 0.01% 0.02%
C 7262 6263 0 0 0.00% 0.00%
D 7263 6264 20 20 0.28% 0.32%

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 13 254 8245 48.87 773 756 153.3
A 0 226 6547 37.79 773 756 153.3
A 3 137 6342 36.45 773 756 153.3
B 12 111 17024 112.88 775 756 144.1
B 11 111 15027 99.02 775 756 144.1
B 14 111 13526 88.61 775 756 144.1
C 14 238 122374 705.64 753 758 172.3
C 10 22 10267 55.17 753 758 172.3
C 0 10 7170 37.2 753 758 172.3
D 1 52 168693 919.63 758 736 182.6
D 2 234 24470 129.95 758 736 182.6
D 14 226 7355 36.24 758 736 182.6

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