ASTROSAT CZTI

Data Quality Report

Orbit 41588

Creation date: 2024-06-27T22:30:26.364718
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/AS1C07_001T10_9000005678_41588cztM0_level2.fits modeM0/AS1C07_001T10_9000005678_41588cztM0_level2_quad_clean.evt
Size (bytes)389,096,64090,478,080
Size371.1 MB 86.3 MB
Events in quadrant A3,246,889627,855
Events in quadrant B2,723,317645,804
Events in quadrant C4,720,441533,845
Events in quadrant D3,289,925553,093

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131372
B0117952
C0174192
D0135332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5424891.640855%
B5424120.221239%
C542483215.339233%
D54242294.221976%

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 7246 5425 53 53 0.73% 0.98%
B 7246 5425 3 3 0.04% 0.06%
C 7246 5425 616 616 8.50% 11.35%
D 7246 5425 182 182 2.51% 3.35%

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 574181 4603.44 608 596 124.6
A 2 79 231554 1853.61 608 596 124.6
A 15 223 46233 366.27 608 596 124.6
B 0 186 125616 1083.62 605 589 115.4
B 0 190 42493 363.19 605 589 115.4
B 0 245 38849 331.6 605 589 115.4
C 4 254 1828861 14309.25 552 555 127.8
C 0 10 511893 4001.99 552 555 127.8
C 15 214 222269 1735.25 552 555 127.8
D 13 249 573559 4011.44 589 571 142.8
D 12 6 81224 564.64 589 571 142.8
D 2 120 77078 535.62 589 571 142.8

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