ASTROSAT CZTI

Data Quality Report

Orbit 46548

Creation date: 2024-06-27T23:24:35.049961
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_091T08_9000006228_46548cztM0_level2.fits modeM0/AS1A13_091T08_9000006228_46548cztM0_level2_quad_clean.evt
Size (bytes)523,656,000108,362,880
Size499.4 MB 103.3 MB
Events in quadrant A6,377,495722,570
Events in quadrant B3,301,077763,965
Events in quadrant C3,356,483727,343
Events in quadrant D5,847,720616,791

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230851
B0137611
C0143731
D0218133

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64622984.611575%
B64631402.166177%
C6463901.392542%
D646269910.817084%

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 7582 6462 62 62 0.82% 0.96%
B 7583 6463 3 3 0.04% 0.05%
C 7583 6464 22 22 0.29% 0.34%
D 7582 6462 558 558 7.36% 8.64%

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 3157318 19702.79 763 745 160.2
A 13 248 134128 832.55 763 745 160.2
A 9 191 87209 539.69 763 745 160.2
B 3 112 103440 675.93 770 747 151.9
B 0 189 43117 278.88 770 747 151.9
B 0 245 33017 212.4 770 747 151.9
C 9 54 308979 1740.42 752 757 177.1
C 14 254 88631 496.19 752 757 177.1
C 14 67 8830 45.59 752 757 177.1
D 13 249 1832320 10056.91 724 705 182.1
D 1 52 912309 5005.37 724 705 182.1
D 2 120 148541 811.73 724 705 182.1

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