ASTROSAT CZTI

Data Quality Report

Orbit 53432

Creation date: 2025-08-14T09:18:33.040285
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_011T09_9000006494_53432cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53432cztM0_level2_quad_clean.evt
Size (bytes)1,058,760,00086,739,840
Size1009.7 MB 82.7 MB
Events in quadrant A6,498,780690,475
Events in quadrant B8,048,869678,360
Events in quadrant C19,787,09554,658
Events in quadrant D4,258,195664,368

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247890
B0293650
C0640750
D0183820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77395477.068097%
B7739132417.108154%
C7739726493.862256%
D7739710.917431%

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 7739 7739 477 477 6.16% 6.16%
B 7739 7739 621 621 8.02% 8.02%
C 7739 7739 7114 7114 91.92% 91.92%
D 7739 7739 82 82 1.06% 1.06%

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 14 1526399 7857.23 779 759 194.2
A 15 174 1022837 5263.83 779 759 194.2
A 3 63 452049 2324.2 779 759 194.2
B 4 171 1921280 11810.92 759 733 162.6
B 10 254 1294870 7958.64 759 733 162.6
B 4 206 1259002 7738.06 759 733 162.6
C 7 64 15298372 177191.87 312 308 86.3
C 15 224 1746357 20223.85 312 308 86.3
C 1 241 830817 9619.48 312 308 86.3
D 7 70 312897 1409.67 781 746 221.4
D 10 172 174895 786.45 781 746 221.4
D 2 249 163243 733.83 781 746 221.4

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