ASTROSAT CZTI

Data Quality Report

Orbit 46445

Creation date: 2024-06-27T23:23:17.991444
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_062T01_9000006208_46445cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46445cztM0_level2_quad_clean.evt
Size (bytes)417,683,520106,545,600
Size398.3 MB 101.6 MB
Events in quadrant A5,376,146709,631
Events in quadrant B3,002,480744,523
Events in quadrant C2,832,707708,511
Events in quadrant D3,787,789647,641

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198101
B0125731
C0123101
D0152281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59481893.177539%
B5949951.596907%
C5949480.806858%
D59491492.504623%

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 7143 5948 18 18 0.25% 0.30%
B 7144 5950 3 3 0.04% 0.05%
C 7144 5950 2 2 0.03% 0.03%
D 7144 5950 92 92 1.29% 1.55%

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 2507345 16959.45 725 714 147.8
A 3 7 46985 313.06 725 714 147.8
A 2 79 11056 69.97 725 714 147.8
B 0 189 58474 415.33 719 698 139.1
B 0 190 58065 412.39 719 698 139.1
B 7 219 20018 138.89 719 698 139.1
C 3 233 32016 188.76 707 711 165.8
C 2 14 23799 139.21 707 711 165.8
C 12 249 10721 60.36 707 711 165.8
D 13 249 793021 4567.44 705 685 173.5
D 1 52 267458 1537.82 705 685 173.5
D 2 234 28185 158.52 705 685 173.5

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