ASTROSAT CZTI

Data Quality Report

Orbit 45406

Creation date: 2024-06-27T23:11:05.835575
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_049T07_9000006056_45406cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45406cztM0_level2_quad_clean.evt
Size (bytes)556,894,080134,801,280
Size531.1 MB 128.6 MB
Events in quadrant A6,782,709891,893
Events in quadrant B3,871,447927,166
Events in quadrant C3,821,745889,578
Events in quadrant D5,488,074790,095

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264021
B0175391
C0176291
D0221481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83881992.372437%
B8388480.572246%
C8389170.202646%
D83892272.705924%

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 8913 8389 66 66 0.74% 0.79%
B 8913 8389 0 0 0.00% 0.00%
C 8914 8390 5 5 0.06% 0.06%
D 8914 8390 190 190 2.13% 2.26%

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 2906829 14764.43 947 926 196.8
A 15 174 188543 953.25 947 926 196.8
A 9 191 11522 53.84 947 926 196.8
B 0 155 31442 161.07 955 925 189.5
B 12 111 24676 125.36 955 925 189.5
B 11 111 22546 114.12 955 925 189.5
C 11 16 38439 168.6 942 949 222.4
C 0 239 29694 129.27 942 949 222.4
C 3 233 26022 112.76 942 949 222.4
D 11 241 621444 2660.86 919 889 233.2
D 13 249 514125 2200.69 919 889 233.2
D 1 52 392135 1677.62 919 889 233.2

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