ASTROSAT CZTI

Data Quality Report

Orbit 45605

Creation date: 2024-06-27T23:14:08.192070
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_082T02_9000006112_45605cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45605cztM0_level2_quad_clean.evt
Size (bytes)443,088,000109,114,560
Size422.6 MB 104.1 MB
Events in quadrant A5,402,808727,323
Events in quadrant B3,323,418762,348
Events in quadrant C3,026,652724,043
Events in quadrant D4,163,661654,768

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202161
B0141461
C0133641
D0165931

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62452614.179343%
B62461953.121998%
C62451272.033627%
D62451712.738191%

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 6245 16 16 0.22% 0.26%
B 7376 6246 52 52 0.70% 0.83%
C 7375 6245 32 32 0.43% 0.51%
D 7375 6245 50 50 0.68% 0.80%

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 2538317 17193.59 723 707 147.6
A 10 248 58675 392.76 723 707 147.6
A 0 243 10769 68.18 723 707 147.6
B 5 172 124350 879.85 725 703 140.5
B 7 221 106758 754.67 725 703 140.5
B 15 201 88095 621.87 725 703 140.5
C 14 254 213500 1268.51 720 725 167.7
C 13 61 4817 24.4 720 725 167.7
C 14 67 2578 11.05 720 725 167.7
D 11 241 807419 4508.14 718 695 178.9
D 1 52 109286 606.83 718 695 178.9
D 11 224 107707 598.01 718 695 178.9

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