ASTROSAT CZTI

Data Quality Report

Orbit 44436

Creation date: 2024-06-27T23:03:36.665332
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_072T03_9000006000_44436cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44436cztM0_level2_quad_clean.evt
Size (bytes)606,234,240121,907,520
Size578.2 MB 116.3 MB
Events in quadrant A5,423,648838,373
Events in quadrant B4,254,307848,450
Events in quadrant C6,654,852734,350
Events in quadrant D5,502,263726,520

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225500
B0179883
C0250671
D0218100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78121341.715310%
B78102433.111396%
C781195412.213545%
D78124145.299539%

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 7812 7812 7 7 0.09% 0.09%
B 7812 7811 66 66 0.84% 0.84%
C 7811 7811 747 747 9.56% 9.56%
D 7812 7812 313 313 4.01% 4.01%

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 1863286 9808.86 902 882 189.9
A 10 248 60963 316.43 902 882 189.9
A 0 243 13728 67.66 902 882 189.9
B 0 229 291221 1662.8 888 858 174.6
B 4 170 284463 1624.1 888 858 174.6
B 5 172 75704 428.61 888 858 174.6
C 3 233 1655853 8308.34 838 843 199.2
C 15 158 1460776 7329.03 838 843 199.2
C 14 254 141378 705.5 838 843 199.2
D 4 221 920809 4137.03 871 843 222.4
D 2 249 327417 1468.58 871 843 222.4
D 12 233 275102 1233.33 871 843 222.4

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