ASTROSAT CZTI

Data Quality Report

Orbit 10571

Creation date: 2024-06-27T16:00:57.964274
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/AS1G07_004T01_9000001532_10571cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10571cztM0_level2_quad_clean.evt
Size (bytes)616,092,480104,400,000
Size587.6 MB 99.6 MB
Events in quadrant A3,850,687638,919
Events in quadrant B5,470,172653,974
Events in quadrant C3,785,731668,987
Events in quadrant D4,993,828628,173

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172623
B0218572
C0171702
D0202482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82213714.512833%
B822185710.424523%
C82212232.712565%
D82212823.430240%

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 8311 8223 0 0 0.00% 0.00%
B 8311 8223 355 355 4.27% 4.32%
C 8311 8223 0 0 0.00% 0.00%
D 8311 8223 43 43 0.52% 0.52%

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 13 251 52942 255.91 980 953 203.2
A 1 162 11840 53.59 980 953 203.2
A 15 174 10257 45.8 980 953 203.2
B 4 239 1612181 8650.46 963 937 186.3
B 11 51 30377 158.05 963 937 186.3
B 0 219 24597 127.02 963 937 186.3
C 8 128 12329 51.16 960 962 222.2
C 14 234 10539 43.11 960 962 222.2
C 4 175 8485 33.86 960 962 222.2
D 2 16 664475 2891.48 951 919 229.5
D 8 195 481878 2095.81 951 919 229.5
D 13 105 144919 627.49 951 919 229.5

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