ASTROSAT CZTI

Data Quality Report

Orbit 43685

Creation date: 2024-06-27T22:54:31.065122
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_008T01_9000005898_43685cztM0_level2.fits modeM0/AS1A13_008T01_9000005898_43685cztM0_level2_quad_clean.evt
Size (bytes)1,265,564,160111,242,880
Size1.2 GB 106.1 MB
Events in quadrant A15,247,093760,257
Events in quadrant B5,033,501847,201
Events in quadrant C17,546,219498,798
Events in quadrant D8,422,427717,259

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0506251
B0202341
C0574521
D0304201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7763400151.539353%
B77633694.753317%
C7763594476.568337%
D7763123815.947443%

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 8183 7764 3675 3675 44.91% 47.33%
B 8183 7764 127 127 1.55% 1.64%
C 8183 7764 5416 5416 66.19% 69.76%
D 8183 7764 836 836 10.22% 10.77%

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 15 222 8015890 47488.23 811 794 168.8
A 14 63 2811583 16653.5 811 794 168.8
A 10 83 917192 5429.52 811 794 168.8
B 0 200 425275 2409.03 893 869 176.2
B 5 255 247195 1398.21 893 869 176.2
B 5 235 236240 1336.02 893 869 176.2
C 15 142 13448117 104399.49 537 541 128.8
C 15 157 803078 6230.45 537 541 128.8
C 15 158 501762 3891.2 537 541 128.8
D 5 235 586737 2630.45 836 813 222.7
D 13 249 540122 2421.18 836 813 222.7
D 14 210 495650 2221.53 836 813 222.7

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