ASTROSAT CZTI

Data Quality Report

Orbit 44289

Creation date: 2024-06-27T23:01:39.355625
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_012T08_9000005986_44289cztM0_level2.fits modeM0/AS1A13_012T08_9000005986_44289cztM0_level2_quad_clean.evt
Size (bytes)569,442,240117,650,880
Size543.1 MB 112.2 MB
Events in quadrant A6,599,550770,227
Events in quadrant B5,032,275782,889
Events in quadrant C3,364,415791,849
Events in quadrant D5,514,112707,033

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250681
B0199801
C0153551
D0215311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73325958.115112%
B73325747.828696%
C7332590.804692%
D73324345.919258%

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 7682 7333 314 314 4.09% 4.28%
B 7682 7333 204 204 2.66% 2.78%
C 7682 7333 1 1 0.01% 0.01%
D 7682 7333 277 277 3.61% 3.78%

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 1717659 10067.61 824 806 170.5
A 10 83 1643456 9632.48 824 806 170.5
A 13 248 24868 141.1 824 806 170.5
B 5 235 998565 6031.93 828 801 165.4
B 0 219 224909 1354.83 828 801 165.4
B 0 155 152455 916.82 828 801 165.4
C 14 254 62835 316.45 830 833 195.9
C 1 3 42325 211.77 830 833 195.9
C 3 233 22322 109.68 830 833 195.9
D 1 52 520041 2525.84 814 788 205.6
D 5 222 499154 2424.24 814 788 205.6
D 5 235 414449 2012.2 814 788 205.6

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