ASTROSAT CZTI

Data Quality Report

Orbit 46405

Creation date: 2024-06-27T23:22:47.647031
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_46405cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46405cztM0_level2_quad_clean.evt
Size (bytes)462,314,880110,744,640
Size440.9 MB 105.6 MB
Events in quadrant A6,311,582723,987
Events in quadrant B3,646,217759,090
Events in quadrant C3,184,920723,885
Events in quadrant D3,435,037665,945

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234351
B0155831
C0146271
D0152411

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68932974.308719%
B68932203.191644%
C68931311.900479%
D68941492.161300%

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 7288 6894 1 1 0.01% 0.01%
B 7288 6894 72 72 0.99% 1.04%
C 7288 6894 11 11 0.15% 0.16%
D 7289 6895 39 39 0.54% 0.57%

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 3272441 20282.16 771 752 161.3
A 13 248 22725 136.22 771 752 161.3
A 0 243 15755 93.01 771 752 161.3
B 5 172 366078 2430.04 766 743 150.3
B 2 2 79143 521.48 766 743 150.3
B 4 171 51108 335.0 766 743 150.3
C 14 254 113649 630.28 761 761 179.1
C 2 14 36469 199.37 761 761 179.1
C 12 2 36323 198.55 761 761 179.1
D 5 171 103771 530.78 767 741 194.1
D 13 249 94646 483.77 767 741 194.1
D 5 235 74406 379.5 767 741 194.1

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