ASTROSAT CZTI

Data Quality Report

Orbit 46098

Creation date: 2024-06-27T23:19:13.208605
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/AS1C07_001T10_9000006170_46098cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46098cztM0_level2_quad_clean.evt
Size (bytes)497,401,920110,200,320
Size474.4 MB 105.1 MB
Events in quadrant A5,759,613722,111
Events in quadrant B3,148,422787,910
Events in quadrant C3,433,113754,695
Events in quadrant D5,580,070630,727

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214264
B0137112
C0146952
D0210412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63282934.630215%
B6328891.406448%
C63281933.049937%
D632863910.097977%

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 7528 6329 42 42 0.56% 0.66%
B 7528 6329 10 10 0.13% 0.16%
C 7528 6329 76 76 1.01% 1.20%
D 7528 6329 474 474 6.30% 7.49%

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 10 83 2943240 19886.52 716 701 148.0
A 9 191 23873 156.6 716 701 148.0
A 13 254 9629 60.34 716 701 148.0
B 0 190 70418 498.62 736 715 139.8
B 8 234 58557 413.77 736 715 139.8
B 5 185 43632 307.01 736 715 139.8
C 14 254 525402 3103.74 727 731 169.0
C 3 233 39143 227.23 727 731 169.0
C 4 0 22071 126.24 727 731 169.0
D 1 52 1759953 10204.89 694 672 172.4
D 5 235 418862 2425.75 694 672 172.4
D 2 37 167151 965.68 694 672 172.4

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