ASTROSAT CZTI

Data Quality Report

Orbit 56060

Creation date: 2026-02-09T11:57:12.044999
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_083T03_9000006548_56060cztM0_level2.fits modeM0/AS1A14_083T03_9000006548_56060cztM0_level2_quad_clean.evt
Size (bytes)472,377,600107,861,760
Size450.5 MB 102.9 MB
Events in quadrant A4,963,577659,379
Events in quadrant B4,296,696754,006
Events in quadrant C3,553,936685,103
Events in quadrant D4,075,368634,606

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206492
B0184282
C0166692
D0179653

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76646548.533403%
B76642913.796973%
C7664550.717641%
D76631081.409370%

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 7679 7665 631 631 8.22% 8.23%
B 7679 7665 150 150 1.95% 1.96%
C 7679 7665 22 22 0.29% 0.29%
D 7678 7664 61 61 0.79% 0.80%

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 12 115 1515293 8045.99 756 739 188.2
A 15 32 180377 954.32 756 739 188.2
A 0 8 113155 597.2 756 739 188.2
B 2 249 453513 2675.0 800 770 169.2
B 10 247 137780 809.51 800 770 169.2
B 9 251 112804 661.95 800 770 169.2
C 13 3 163006 752.75 789 779 215.5
C 15 147 98403 452.98 789 779 215.5
C 12 252 94559 435.15 789 779 215.5
D 11 129 306651 1396.2 782 747 219.1
D 6 42 120368 545.97 782 747 219.1
D 14 52 115831 525.26 782 747 219.1

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