ASTROSAT CZTI

Data Quality Report

Orbit 48560

Creation date: 2024-09-20T04:08:40.232346
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_037T01_9000006436_48560cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48560cztM0_level2_quad_clean.evt
Size (bytes)457,375,680104,480,640
Size436.2 MB 99.6 MB
Events in quadrant A6,937,604671,120
Events in quadrant B3,625,366700,902
Events in quadrant C2,733,649697,720
Events in quadrant D3,120,955632,738

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02496016
B0157913
C0134202
D0144322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0131
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66053074.647994%
B66062674.041780%
C6606170.257342%
D6606560.847714%

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 7657 6608 142 142 1.85% 2.15%
B 7656 6606 112 112 1.46% 1.70%
C 7656 6607 3 3 0.04% 0.05%
D 7656 6607 33 33 0.43% 0.50%

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 4133206 28785.06 688 674 143.6
A 13 248 52760 362.8 688 674 143.6
A 12 189 36780 251.5 688 674 143.6
B 12 16 776699 5686.45 690 667 136.5
B 5 255 47278 341.55 690 667 136.5
B 8 234 37825 272.28 690 667 136.5
C 12 250 15298 89.61 696 702 162.9
C 14 254 4848 25.45 696 702 162.9
C 13 61 4495 23.29 696 702 162.9
D 2 249 178895 1025.36 688 666 173.8
D 2 165 178243 1021.61 688 666 173.8
D 12 233 41194 233.16 688 666 173.8

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