ASTROSAT CZTI

Data Quality Report

Orbit 05730

Creation date: 2024-06-27T14:58:26.412938
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/AS1A02_150T01_9000000738_05730cztM0_level2.evt modeM0/AS1A02_150T01_9000000738_05730cztM0_level2_quad_clean.evt
Size (bytes)440,959,68056,050,560
Size420.5 MB 53.5 MB
Events in quadrant A3,067,830312,904
Events in quadrant B3,667,623318,607
Events in quadrant C3,065,570320,262
Events in quadrant D3,126,896306,886

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129983
B0152702
C0130442
D0132742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6275200.318725%
B6275500.796813%
C6275350.557769%
D6275360.573705%

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 8765 6277 0 0 0.00% 0.00%
B 8765 6277 0 0 0.00% 0.00%
C 8765 6277 0 0 0.00% 0.00%
D 8765 6277 6 6 0.07% 0.10%

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 13 14 12358 72.49 793 778 159.7
A 12 194 7573 42.54 793 778 159.7
A 0 226 7350 41.14 793 778 159.7
B 5 172 361205 2364.1 809 792 152.5
B 15 204 148111 966.33 809 792 152.5
B 12 111 14575 90.41 809 792 152.5
C 13 61 6168 29.87 783 790 180.1
C 8 222 4098 18.37 783 790 180.1
C 1 16 3488 14.98 783 790 180.1
D 11 241 67027 356.61 775 755 185.8
D 2 14 32683 171.8 775 755 185.8
D 2 206 28866 151.26 775 755 185.8

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