ASTROSAT CZTI

Data Quality Report

Orbit 47267

Creation date: 2024-06-27T23:34:02.149664
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_011T02_9000006310_47267cztM0_level2.fits modeM0/AS1C09_011T02_9000006310_47267cztM0_level2_quad_clean.evt
Size (bytes)149,742,72024,981,120
Size142.8 MB 23.8 MB
Events in quadrant A1,953,784169,730
Events in quadrant B884,135176,102
Events in quadrant C773,561170,219
Events in quadrant D1,802,871120,767

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0342

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07518575
B03866191
C0350294
D06779319

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1585553.470032%
B1629281.718846%
C165730.181050%
D162240324.845869%

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 1703 1662 16 16 0.94% 0.96%
B 1704 1688 13 13 0.76% 0.77%
C 1704 1698 1 1 0.06% 0.06%
D 1704 1694 336 336 19.72% 19.83%

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 1016904 26190.66 177 173 38.8
A 9 191 240631 6194.12 177 173 38.8
A 15 235 3602 88.33 177 173 38.8
B 0 200 81309 2132.07 183 177 38.1
B 0 197 20795 541.82 183 177 38.1
B 0 245 18644 485.3 183 177 38.1
C 14 254 27561 598.49 186 187 45.7
C 3 233 6212 131.73 186 187 45.7
C 10 9 6111 129.52 186 187 45.7
D 12 128 894089 21237.73 164 159 42.1
D 12 1 153814 3650.49 164 159 42.1
D 1 47 32585 770.37 164 159 42.1

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