ASTROSAT CZTI

Data Quality Report

Orbit 16373

Creation date: 2024-06-27T17:21:44.644929
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/AS1A05_069T04_9000002418_16373cztM0_level2.evt modeM0/AS1A05_069T04_9000002418_16373cztM0_level2_quad_clean.evt
Size (bytes)570,093,12094,950,720
Size543.7 MB 90.6 MB
Events in quadrant A3,717,635607,579
Events in quadrant B4,382,989608,287
Events in quadrant C4,738,661574,380
Events in quadrant D3,924,426570,221

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156443
B0175802
C0188102
D0165872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74051732.336259%
B74052623.538150%
C74052623.538150%
D74051562.106685%

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 9421 7406 0 0 0.00% 0.00%
B 9421 7406 29 29 0.31% 0.39%
C 9421 7407 3 3 0.03% 0.04%
D 9421 7408 54 54 0.57% 0.73%

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 15 174 26977 135.46 953 935 192.2
A 3 1 20813 103.4 953 935 192.2
A 0 226 8500 39.35 953 935 192.2
B 15 35 197931 1077.72 949 924 182.8
B 10 16 156816 852.8 949 924 182.8
B 0 182 90075 487.7 949 924 182.8
C 3 233 1075378 5104.28 900 905 210.5
C 14 238 139052 656.27 900 905 210.5
C 10 169 9229 39.54 900 905 210.5
D 10 70 268302 1198.52 917 891 223.1
D 2 122 107229 476.6 917 891 223.1
D 12 218 30227 131.48 917 891 223.1

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