ASTROSAT CZTI

Data Quality Report

Orbit 06142

Creation date: 2024-06-27T15:03:19.298509
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/AS1C02_018T01_9000000798_06142cztM0_level2.evt modeM0/AS1C02_018T01_9000000798_06142cztM0_level2_quad_clean.evt
Size (bytes)448,479,36069,180,480
Size427.7 MB 66.0 MB
Events in quadrant A3,223,165405,914
Events in quadrant B3,857,737406,563
Events in quadrant C3,000,420424,512
Events in quadrant D3,060,385406,834

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014822
B014814
C014818
D014816

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157461826
B0183892649
C0153951798
D0156311790

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64732383.676811%
B63873825.980899%
C64681892.922078%
D64782053.164557%

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 7389 6928 0 0 0.00% 0.00%
B 7388 6862 62 62 0.84% 0.90%
C 7389 6923 0 0 0.00% 0.00%
D 7389 6939 6 6 0.08% 0.09%

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 8 15 209616 1283.53 780 761 162.7
A 0 226 7555 41.75 780 761 162.7
A 12 194 7495 41.38 780 761 162.7
B 3 64 457709 3017.13 773 753 151.5
B 0 219 322208 2122.46 773 753 151.5
B 0 214 27769 178.38 773 753 151.5
C 13 61 6299 30.55 766 772 180.9
C 8 128 3910 17.34 766 772 180.9
C 9 16 3299 13.97 766 772 180.9
D 14 173 51275 266.53 765 739 189.6
D 13 169 33287 171.66 765 739 189.6
D 5 97 32932 169.79 765 739 189.6

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