ASTROSAT CZTI

Data Quality Report

Orbit 47074

Creation date: 2024-06-27T23:31:25.726856
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_005T01_9000006296_47074cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47074cztM0_level2_quad_clean.evt
Size (bytes)487,065,600115,070,400
Size464.5 MB 109.7 MB
Events in quadrant A6,790,297765,593
Events in quadrant B3,734,217771,098
Events in quadrant C3,132,864751,060
Events in quadrant D3,813,269694,870

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251170
B0160290
C0149780
D0166011

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72011421.971948%
B72011221.694209%
C7202340.472091%
D7201741.027635%

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 7201 7201 0 0 0.00% 0.00%
B 7201 7201 36 36 0.50% 0.50%
C 7202 7202 26 26 0.36% 0.36%
D 7201 7201 52 52 0.72% 0.72%

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 3700844 22298.06 793 775 165.9
A 13 254 12818 72.58 793 775 165.9
A 3 137 9377 51.84 793 775 165.9
B 3 112 354681 2270.54 783 756 155.9
B 0 198 60788 385.12 783 756 155.9
B 5 255 60485 383.18 783 756 155.9
C 14 254 109817 606.03 770 772 179.9
C 12 250 8617 43.6 770 772 179.9
C 7 220 7498 37.38 770 772 179.9
D 1 52 249547 1298.49 772 748 191.6
D 12 233 220826 1148.6 772 748 191.6
D 1 47 140847 731.18 772 748 191.6

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