ASTROSAT CZTI

Data Quality Report

Orbit 46411

Creation date: 2024-06-27T23:22:52.732499
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/AS1A13_070T04_9000006204_46411cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46411cztM0_level2_quad_clean.evt
Size (bytes)463,654,080111,116,160
Size442.2 MB 106.0 MB
Events in quadrant A6,480,459721,373
Events in quadrant B3,380,165754,653
Events in quadrant C3,308,788730,939
Events in quadrant D3,449,696669,318

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240312
B0149892
C0149352
D0152592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70052052.926481%
B70051051.498929%
C7005450.642398%
D7005570.813704%

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 7800 7006 32 32 0.41% 0.46%
B 7800 7006 49 49 0.63% 0.70%
C 7800 7006 15 15 0.19% 0.21%
D 7800 7006 33 33 0.42% 0.47%

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 10 83 3420901 21738.53 756 738 157.3
A 13 248 42088 262.82 756 738 157.3
A 0 247 27328 169.01 756 738 157.3
B 5 172 147724 978.67 762 737 150.2
B 5 32 81558 538.13 762 737 150.2
B 5 171 32188 209.41 762 737 150.2
C 15 208 174709 973.25 756 757 178.7
C 14 254 74357 411.79 756 757 178.7
C 3 233 60413 333.77 756 757 178.7
D 12 233 88538 467.84 750 727 187.7
D 10 181 67725 356.95 750 727 187.7
D 2 249 45157 236.71 750 727 187.7

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