ASTROSAT CZTI

Data Quality Report

Orbit 43680

Creation date: 2024-06-27T22:54:27.307193
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/AS1A12_018T01_9000005896_43680cztM0_level2.fits modeM0/AS1A12_018T01_9000005896_43680cztM0_level2_quad_clean.evt
Size (bytes)949,167,36098,421,120
Size905.2 MB 93.9 MB
Events in quadrant A10,382,115720,093
Events in quadrant B4,162,312740,585
Events in quadrant C13,574,840437,382
Events in quadrant D6,500,294612,757

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0355281
B0168521
C0450172
D0239641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A668597614.599850%
B66862704.038289%
C6685442866.237846%
D668593413.971578%

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 7195 6686 504 504 7.00% 7.54%
B 7196 6687 114 114 1.58% 1.70%
C 7195 6686 3632 3632 50.48% 54.32%
D 7195 6686 611 611 8.49% 9.14%

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 15 222 6078393 41399.71 714 700 146.8
A 10 83 834665 5680.76 714 700 146.8
A 15 223 446539 3036.94 714 700 146.8
B 0 219 377300 2664.25 731 711 141.3
B 5 235 246235 1737.0 731 711 141.3
B 4 171 208064 1466.95 731 711 141.3
C 15 142 9334220 85431.29 461 462 109.3
C 15 158 1364916 12488.76 461 462 109.3
C 15 157 627948 5743.34 461 462 109.3
D 2 249 888668 5033.64 688 668 176.4
D 1 52 471711 2670.12 688 668 176.4
D 13 249 387594 2193.3 688 668 176.4

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