ASTROSAT CZTI

Data Quality Report

Orbit 43598

Creation date: 2024-06-27T22:53:30.451701
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_9000005890_43598cztM0_level2.fits modeM0/AS1C07_001T10_9000005890_43598cztM0_level2_quad_clean.evt
Size (bytes)2,685,787,200153,296,640
Size2.5 GB 146.2 MB
Events in quadrant A14,322,7031,475,950
Events in quadrant B14,872,9181,488,571
Events in quadrant C35,332,463379,290
Events in quadrant D33,813,416310,969

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02871
B02860
C02871
D02860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C073
D062

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052364120
B054139114
C0115049394
D0110459411

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1406113469.572577%
B14063184113.091090%
C140551382098.327997%
D140541395299.274228%

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 15249 14069 847 847 5.55% 6.02%
B 15249 14075 1017 1017 6.67% 7.23%
C 15248 14054 12959 12959 84.99% 92.21%
D 15248 14053 12842 12842 84.22% 91.38%

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 99 2938043 9451.28 1517 1488 310.7
A 10 83 1501989 4829.35 1517 1488 310.7
A 12 189 1400390 4502.36 1517 1488 310.7
B 4 206 4436548 15429.3 1499 1456 287.4
B 5 235 958866 3330.75 1499 1456 287.4
B 0 183 955286 3318.29 1499 1456 287.4
C 15 142 16159935 159561.76 432 434 101.3
C 15 174 9465621 93460.93 432 434 101.3
C 15 158 3496893 34524.65 432 434 101.3
D 4 216 9075665 67850.53 418 397 133.8
D 8 192 7340115 54874.82 418 397 133.8
D 4 212 5858202 43795.42 418 397 133.8

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