ASTROSAT CZTI

Data Quality Report

Orbit 43404

Creation date: 2024-06-27T22:51:35.761612
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_9000005874_43404cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43404cztM0_level2_quad_clean.evt
Size (bytes)334,048,32083,574,720
Size318.6 MB 79.7 MB
Events in quadrant A3,453,090548,366
Events in quadrant B2,575,189580,057
Events in quadrant C2,531,174549,930
Events in quadrant D3,402,741489,398

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135402
B0112472
C0109212
D0139352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51761593.071870%
B5176210.405719%
C517660.115920%
D51762645.100464%

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 7178 5177 117 117 1.63% 2.26%
B 7178 5177 8 8 0.11% 0.15%
C 7178 5177 6 6 0.08% 0.12%
D 7178 5177 234 234 3.26% 4.52%

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 580917 5262.81 540 528 110.3
A 15 237 448874 4065.48 540 528 110.3
A 13 248 309036 2797.47 540 528 110.3
B 0 189 265096 2493.81 547 532 106.1
B 0 190 94096 881.94 547 532 106.1
B 0 186 23053 212.29 547 532 106.1
C 15 214 217124 1734.66 532 535 124.9
C 3 233 154180 1230.54 532 535 124.9
C 15 159 81584 649.12 532 535 124.9
D 1 52 968102 7524.57 522 505 128.6
D 12 6 182973 1418.97 522 505 128.6
D 13 249 137474 1065.15 522 505 128.6

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