ASTROSAT CZTI

Data Quality Report

Orbit 48340

Creation date: 2024-09-05T10:07:41.496455
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_029T01_9000006422_48340cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48340cztM0_level2_quad_clean.evt
Size (bytes)78,338,88015,338,880
Size74.7 MB 14.6 MB
Events in quadrant A929,827101,174
Events in quadrant B456,317103,813
Events in quadrant C412,33899,350
Events in quadrant D1,023,69086,037

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035560
B020010
C019300
D037210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A96070.729167%
B96110.104058%
C96100.000000%
D961707.284079%

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 960 960 0 0 0.00% 0.00%
B 961 961 0 0 0.00% 0.00%
C 961 961 0 0 0.00% 0.00%
D 961 961 57 57 5.93% 5.93%

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 513080 21103.34 107 104 24.3
A 13 254 1577 60.6 107 104 24.3
A 0 31 1286 48.63 107 104 24.3
B 4 21 20901 902.95 105 102 23.0
B 0 186 7036 301.03 105 102 23.0
B 12 32 6210 265.17 105 102 23.0
C 15 208 4690 172.61 103 104 26.6
C 1 3 1853 65.83 103 104 26.6
C 13 61 743 24.05 103 104 26.6
D 2 165 591140 21647.21 102 98 27.3
D 7 204 8900 322.38 102 98 27.3
D 2 249 5649 203.31 102 98 27.3

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