ASTROSAT CZTI

Data Quality Report

Orbit 13080

Creation date: 2024-06-27T16:36:02.882338
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/AS1A04_067T01_9000001926_13080cztM0_level2.evt modeM0/AS1A04_067T01_9000001926_13080cztM0_level2_quad_clean.evt
Size (bytes)532,157,76098,398,080
Size507.5 MB 93.8 MB
Events in quadrant A3,126,939633,529
Events in quadrant B3,882,334642,905
Events in quadrant C3,089,440648,655
Events in quadrant D5,568,453593,212

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139423
B0161722
C0138772
D0216312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6618160.241765%
B66183194.820187%
C6618290.438199%
D661882812.511333%

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 7664 6620 0 0 0.00% 0.00%
B 7664 6620 154 154 2.01% 2.33%
C 7664 6620 13 13 0.17% 0.20%
D 7664 6620 581 581 7.58% 8.78%

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 8 15 80087 504.11 772 755 157.4
A 12 189 42304 264.02 772 755 157.4
A 13 248 10717 63.3 772 755 157.4
B 0 85 649502 4467.02 765 745 145.2
B 3 64 67378 458.8 765 745 145.2
B 0 230 45521 308.31 765 745 145.2
C 15 208 110210 617.98 763 766 177.1
C 13 61 5560 27.07 763 766 177.1
C 12 4 2811 11.55 763 766 177.1
D 1 52 2429779 13986.28 728 706 173.7
D 14 34 143261 820.81 728 706 173.7
D 5 222 126586 724.8 728 706 173.7

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