ASTROSAT CZTI

Data Quality Report

Orbit 47001

Creation date: 2024-06-27T23:30:35.116613
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/AS1C09_006T01_9000006294_47001cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47001cztM0_level2_quad_clean.evt
Size (bytes)874,771,200101,067,840
Size834.2 MB 96.4 MB
Events in quadrant A6,922,352786,829
Events in quadrant B14,899,850328,580
Events in quadrant C4,052,776766,869
Events in quadrant D5,935,406664,300

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253643
B0493071
C0175130
D0229700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73741391.885001%
B7374486665.988609%
C73751662.250847%
D73756598.935593%

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 7375 7375 4 4 0.05% 0.05%
B 7374 7374 4378 4378 59.37% 59.37%
C 7374 7374 143 143 1.94% 1.94%
D 7375 7375 608 608 8.24% 8.24%

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 3594063 20870.52 820 803 172.2
A 9 191 87971 506.29 820 803 172.2
A 15 235 40463 230.35 820 803 172.2
B 3 112 12335639 101613.99 611 593 121.4
B 4 171 63665 519.57 611 593 121.4
B 0 200 30958 250.14 611 593 121.4
C 14 254 663551 3479.5 806 808 190.5
C 3 233 207631 1085.85 806 808 190.5
C 0 207 19595 98.63 806 808 190.5
D 13 249 1695192 8530.19 779 753 198.6
D 1 52 902704 4540.63 779 753 198.6
D 2 249 129005 645.65 779 753 198.6

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