ASTROSAT CZTI

Data Quality Report

Orbit 43251

Creation date: 2024-06-27T22:49:46.517225
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/AS1A06_006T01_9000005860_43251cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43251cztM0_level2_quad_clean.evt
Size (bytes)543,651,840143,832,960
Size518.5 MB 137.2 MB
Events in quadrant A4,716,036955,086
Events in quadrant B4,110,834991,155
Events in quadrant C4,287,757947,968
Events in quadrant D6,306,180832,180

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01860
B01860
C01860
D01860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195352
B0188282
C0187692
D0252332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9057220.242906%
B9058430.474718%
C9058190.209759%
D90585335.884301%

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 11713 9059 7 7 0.06% 0.08%
B 11714 9060 29 29 0.25% 0.32%
C 11714 9060 11 11 0.09% 0.12%
D 11714 9059 509 509 4.35% 5.62%

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 831185 4214.09 955 934 197.0
A 12 189 146746 740.09 955 934 197.0
A 15 237 23895 116.54 955 934 197.0
B 5 255 218398 1157.7 955 928 187.8
B 0 189 94355 497.36 955 928 187.8
B 0 186 33227 171.94 955 928 187.8
C 15 214 373842 1686.36 943 949 221.1
C 14 254 207218 932.82 943 949 221.1
C 0 207 24077 104.59 943 949 221.1
D 1 52 1011530 4472.29 912 884 226.0
D 12 6 938798 4150.44 912 884 226.0
D 2 249 289910 1278.99 912 884 226.0

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