ASTROSAT CZTI

Data Quality Report

Orbit 17074

Creation date: 2024-06-27T17:31:41.222884
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/AS1T03_004T01_9000002532_17074cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17074cztM0_level2_quad_clean.evt
Size (bytes)478,488,96090,233,280
Size456.3 MB 86.1 MB
Events in quadrant A3,323,375569,097
Events in quadrant B3,587,960573,595
Events in quadrant C3,431,316552,317
Events in quadrant D3,665,414542,554

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146052
B0151392
C0146852
D0158282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7100670.943662%
B7101741.042107%
C7101961.351922%
D7101871.225180%

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 8705 7102 0 0 0.00% 0.00%
B 8706 7103 1 1 0.01% 0.01%
C 8706 7103 0 0 0.00% 0.00%
D 8706 7103 30 30 0.34% 0.42%

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 0 226 7633 38.7 864 846 175.4
A 3 137 6407 31.71 864 846 175.4
A 12 194 6310 31.16 864 846 175.4
B 0 197 73617 434.75 862 840 167.4
B 6 36 67626 398.96 862 840 167.4
B 0 189 27626 160.01 862 840 167.4
C 14 238 129371 664.15 826 833 193.5
C 3 233 74397 380.1 826 833 193.5
C 7 247 6883 31.26 826 833 193.5
D 5 222 317614 1530.32 842 815 207.0
D 10 70 70106 334.71 842 815 207.0
D 2 152 41315 195.64 842 815 207.0

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