ASTROSAT CZTI

Data Quality Report

Orbit 58429

Creation date: 2026-07-16T14:13:26.969953
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/AS1A14_045T01_9000006590_58429cztM0_level2.fits modeM0/AS1A14_045T01_9000006590_58429cztM0_level2_quad_clean.evt
Size (bytes)426,974,400110,989,440
Size407.2 MB 105.8 MB
Events in quadrant A3,552,663723,070
Events in quadrant B3,762,000766,688
Events in quadrant C3,958,212691,063
Events in quadrant D3,940,114650,684

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160610
B0164660
C0172790
D0170670

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76051722.261670%
B76062733.589272%
C76061902.498028%
D76061211.590849%

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 7605 7605 3 3 0.04% 0.04%
B 7606 7606 32 32 0.42% 0.42%
C 7606 7606 106 106 1.39% 1.39%
D 7606 7606 55 55 0.72% 0.72%

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 12 114 77739 360.81 863 838 213.1
A 2 143 58684 271.4 863 838 213.1
A 12 80 23422 105.96 863 838 213.1
B 4 171 85516 463.12 847 815 182.9
B 10 246 84678 458.54 847 815 182.9
B 5 172 61701 332.91 847 815 182.9
C 5 10 397254 1745.36 831 824 227.1
C 12 252 88738 387.06 831 824 227.1
C 14 254 61919 268.98 831 824 227.1
D 8 240 153866 651.76 831 793 234.9
D 12 248 134014 567.23 831 793 234.9
D 3 12 92314 389.68 831 793 234.9

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