ASTROSAT CZTI

Data Quality Report

Orbit 48006

Creation date: 2024-08-13T22:42:42.791414
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/AS1T05_218T01_9000006386_48006cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48006cztM0_level2_quad_clean.evt
Size (bytes)533,923,200118,679,040
Size509.2 MB 113.2 MB
Events in quadrant A7,865,738772,471
Events in quadrant B3,536,417805,454
Events in quadrant C3,631,087780,793
Events in quadrant D4,146,479710,506

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290722
B0156412
C0162822
D0176732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75334005.309969%
B75331862.469136%
C75331441.911589%
D75332543.371831%

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 8653 7535 12 12 0.14% 0.16%
B 8653 7534 1 1 0.01% 0.01%
C 8653 7534 32 32 0.37% 0.42%
D 8653 7534 116 116 1.34% 1.54%

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 4570990 25996.89 844 826 175.8
A 13 254 10924 57.44 844 826 175.8
A 7 3 10141 52.99 844 826 175.8
B 0 198 94186 556.71 845 819 167.7
B 7 221 35208 205.05 845 819 167.7
B 12 111 21948 125.98 845 819 167.7
C 12 2 176310 888.13 831 831 197.6
C 14 254 80298 402.2 831 831 197.6
C 15 208 63472 317.04 831 831 197.6
D 2 37 445640 2126.19 834 807 209.2
D 2 120 148965 708.16 834 807 209.2
D 2 249 63582 300.05 834 807 209.2

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