ASTROSAT CZTI

Data Quality Report

Orbit 43898

Creation date: 2024-06-27T22:56:59.229654
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/AS1A13_009T02_9000005914_43898cztM0_level2.fits modeM0/AS1A13_009T02_9000005914_43898cztM0_level2_quad_clean.evt
Size (bytes)622,440,000124,280,640
Size593.6 MB 118.5 MB
Events in quadrant A7,188,983776,137
Events in quadrant B4,282,854874,704
Events in quadrant C4,078,887837,405
Events in quadrant D6,861,816712,548

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273262
B0179892
C0178272
D0259302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8094105212.997282%
B80943494.311836%
C80932503.089089%
D809391511.306067%

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 8109 8095 428 428 5.28% 5.29%
B 8109 8095 26 26 0.32% 0.32%
C 8108 8094 15 15 0.19% 0.19%
D 8108 8094 594 594 7.33% 7.34%

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 15 223 2060371 10649.52 927 906 193.4
A 10 83 1202210 6211.96 927 906 193.4
A 15 222 216848 1116.64 927 906 193.4
B 0 200 151437 783.14 951 921 192.2
B 5 172 68496 351.59 951 921 192.2
B 5 235 66975 343.68 951 921 192.2
C 14 254 145172 645.1 942 945 223.6
C 3 233 135505 601.86 942 945 223.6
C 15 158 53610 235.56 942 945 223.6
D 5 235 995118 4251.48 916 884 233.9
D 13 171 581972 2484.81 916 884 233.9
D 1 52 404229 1724.76 916 884 233.9

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