ASTROSAT CZTI

Data Quality Report

Orbit 43629

Creation date: 2024-06-27T22:53:50.835270
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_095T02_9000005892_43629cztM0_level2.fits modeM0/AS1A12_095T02_9000005892_43629cztM0_level2_quad_clean.evt
Size (bytes)875,678,40091,932,480
Size835.1 MB 87.7 MB
Events in quadrant A5,465,147685,293
Events in quadrant B3,781,663697,737
Events in quadrant C13,585,141425,790
Events in quadrant D9,100,340535,336

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205762
B0152591
C0446631
D0314081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62452574.115292%
B62461602.561639%
C6246431169.020173%
D6246196431.444124%

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 6245 69 69 0.96% 1.10%
B 7196 6246 75 75 1.04% 1.20%
C 7195 6245 4261 4261 59.22% 68.23%
D 7195 6245 1592 1592 22.13% 25.49%

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 14 63 1289314 8855.7 703 689 145.5
A 10 83 735155 5047.4 703 689 145.5
A 15 222 388440 2664.71 703 689 145.5
B 5 235 329738 2405.61 699 679 136.8
B 3 42 128047 931.13 699 679 136.8
B 4 206 86113 624.57 699 679 136.8
C 15 142 6468578 60632.29 447 448 106.7
C 15 174 2876123 26956.59 447 448 106.7
C 15 157 816417 7648.9 447 448 106.7
D 4 212 1173657 7173.57 612 593 163.5
D 4 216 771740 4715.75 612 593 163.5
D 13 249 658144 4021.09 612 593 163.5

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