ASTROSAT CZTI

Data Quality Report

Orbit 20231226_A13_009T03_9000006006_level2

Creation date: 2024-01-04T15:03:39.072989
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_009T03_9000006006cztM0_level2.fits modeM0/AS1A13_009T03_9000006006cztM0_level2_quad_clean.evt
Size (bytes)1,638,083,5201,518,937,920
Size1.5 GB 1.4 GB
Events in quadrant A9,619,7968,634,321
Events in quadrant B9,394,3008,739,292
Events in quadrant C9,843,8528,628,196
Events in quadrant D8,220,8847,486,094

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037100
B037100
C037100
D037100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02700
B02720
C02720
D02720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06205750
B04654820
C04247440
D05433220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182636126876.946604%
B182639133407.304026%
C18263648482.654460%
D182635141907.769595%

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 223230 182334 0 0 0.00% 0.00%
B 223230 182196 0 0 0.00% 0.00%
C 223230 182519 0 0 0.00% 0.00%
D 223229 182249 0 0 0.00% 0.00%

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 7 110 7827 8.66 2510 2345 633.2
A 0 29 7633 8.35 2510 2345 633.2
A 15 236 7398 7.98 2510 2345 633.2
B 2 9 8577 12.8 2478 2354 486.2
B 2 8 6963 9.48 2478 2354 486.2
B 3 17 6866 9.28 2478 2354 486.2
C 1 81 7474 7.5 2606 2423 673.6
C 3 202 7402 7.39 2606 2423 673.6
C 1 80 7298 7.24 2606 2423 673.6
D 10 189 6123 6.1 2362 2141 653.1
D 7 3 5982 5.88 2362 2141 653.1
D 6 79 5946 5.83 2362 2141 653.1

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