ASTROSAT CZTI

Data Quality Report

Orbit 05838

Creation date: 2024-06-27T14:59:50.003909
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/AS1A02_197T05_9000000756_05838cztM0_level2.evt modeM0/AS1A02_197T05_9000000756_05838cztM0_level2_quad_clean.evt
Size (bytes)214,151,04025,971,840
Size204.2 MB 24.8 MB
Events in quadrant A1,552,243141,832
Events in quadrant B1,593,765145,794
Events in quadrant C1,538,532138,664
Events in quadrant D1,581,418132,862

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07638883
B07652837
C07701935
D07809947

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07111
B0726
C0714
D07218

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32031424.433344%
B32281263.903346%
C3184822.575377%
D3181892.797862%

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 3629 3508 0 0 0.00% 0.00%
B 3629 3486 0 0 0.00% 0.00%
C 3630 3493 2 2 0.06% 0.06%
D 3630 3479 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 13 14 5696 62.85 400 389 84.4
A 0 226 3986 42.59 400 389 84.4
A 12 194 3972 42.43 400 389 84.4
B 15 204 8238 95.79 407 396 81.9
B 12 111 7923 91.94 407 396 81.9
B 11 111 6242 71.41 407 396 81.9
C 1 16 27966 304.96 384 385 90.4
C 8 128 4414 44.55 384 385 90.4
C 13 61 3009 29.01 384 385 90.4
D 2 152 55685 565.21 385 370 97.9
D 10 15 53345 541.3 385 370 97.9
D 11 241 9403 92.3 385 370 97.9

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