ASTROSAT CZTI

Data Quality Report

Orbit 02214

Creation date: 2024-06-27T14:15:22.323474
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_072T04_9000000342_02214cztM0_level2.evt modeM0/AS1T01_072T04_9000000342_02214cztM0_level2_quad_clean.evt
Size (bytes)458,435,52049,320,000
Size437.2 MB 47.0 MB
Events in quadrant A2,159,908372,300
Events in quadrant B2,330,271386,836
Events in quadrant C4,058,989209,454
Events in quadrant D4,999,676177,966

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102161
B0103351
C0155477
D0187619

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

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

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5004511.019185%
B5004460.919265%
C4820113523.547718%
D4839135828.063650%

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 6234 5005 0 0 0.00% 0.00%
B 6234 5005 0 0 0.00% 0.00%
C 6234 4821 1000 1000 16.04% 20.74%
D 6234 4840 1296 1296 20.79% 26.78%

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 6947 40.66 561 565 157.0
A 0 226 6240 36.16 561 565 157.0
A 3 1 5849 33.66 561 565 157.0
B 4 158 22217 190.55 593 577 113.6
B 4 200 13855 116.92 593 577 113.6
B 10 244 7332 59.48 593 577 113.6
C 8 112 856515 8043.68 438 438 106.4
C 8 128 701611 6588.2 438 438 106.4
C 8 144 565870 5312.78 438 438 106.4
D 3 254 736595 6497.98 420 406 113.3
D 3 184 272486 2401.52 420 406 113.3
D 3 159 256306 2258.7 420 406 113.3

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