ASTROSAT CZTI

Data Quality Report

Orbit 53293

Creation date: 2025-08-04T22:57:10.695213
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/AS1C09_011T08_9000006492_53293cztM0_level2.fits modeM0/AS1C09_011T08_9000006492_53293cztM0_level2_quad_clean.evt
Size (bytes)19,183,6802,759,040
Size18.3 MB 2.6 MB
Events in quadrant A159,63119,320
Events in quadrant B120,23819,955
Events in quadrant C254,1704,542
Events in quadrant D154,63515,584

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01632985
B016311128
C028772009
D017511134

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137
B0137
C01210
D0135

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A259124.633205%
B24200.000000%
C1673822.754491%
D24520.816327%

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 558 330 8 8 1.43% 2.42%
B 380 305 0 0 0.00% 0.00%
C 486 229 22 22 4.53% 9.61%
D 499 312 2 2 0.40% 0.64%

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 3 62 40536 4695.97 27 26 8.6
A 12 115 5901 681.04 27 26 8.6
A 7 160 1255 142.47 27 26 8.6
B 10 28 8166 1070.12 25 24 7.6
B 10 254 4513 590.0 25 24 7.6
B 10 247 2551 332.13 25 24 7.6
C 4 5 95500 15982.17 16 16 6.0
C 15 178 61074 10219.92 16 16 6.0
C 0 177 12340 2062.8 16 16 6.0
D 11 176 34856 3859.2 25 24 9.0
D 3 12 8565 946.3 25 24 9.0
D 6 242 2420 265.46 25 24 9.0

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