ASTROSAT CZTI

Data Quality Report

Orbit 44596

Creation date: 2024-06-27T23:04:19.999685
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_009T03_9000006006_44596cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44596cztM0_level2_quad_clean.evt
Size (bytes)536,379,840119,514,240
Size511.5 MB 114.0 MB
Events in quadrant A5,537,342807,360
Events in quadrant B3,952,249804,936
Events in quadrant C4,337,521771,349
Events in quadrant D5,449,219716,408

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229520
B0169720
C0182490
D0210660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74562253.017704%
B74563464.640558%
C74572863.835323%
D74573054.090117%

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 7456 7456 31 31 0.42% 0.42%
B 7456 7456 143 143 1.92% 1.92%
C 7457 7457 244 244 3.27% 3.27%
D 7457 7457 266 266 3.57% 3.57%

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 1900841 10336.6 871 853 183.8
A 15 223 130481 705.22 871 853 183.8
A 13 248 103673 559.38 871 853 183.8
B 5 172 424211 2454.54 853 826 172.5
B 14 167 75341 431.99 853 826 172.5
B 0 168 36956 209.46 853 826 172.5
C 12 2 902547 4568.19 831 835 197.4
C 14 254 105238 528.92 831 835 197.4
C 12 250 53277 265.68 831 835 197.4
D 13 249 641755 3000.75 842 817 213.6
D 1 52 630363 2947.42 842 817 213.6
D 4 232 274418 1280.95 842 817 213.6

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