ASTROSAT CZTI

Data Quality Report

Orbit 05610

Creation date: 2024-06-27T14:57:11.308874
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/AS1G06_060T01_9000000726_05610cztM0_level2.evt modeM0/AS1G06_060T01_9000000726_05610cztM0_level2_quad_clean.evt
Size (bytes)1,274,117,760189,950,400
Size1.2 GB 181.2 MB
Events in quadrant A8,605,6721,125,514
Events in quadrant B10,318,8571,132,427
Events in quadrant C8,597,5061,128,520
Events in quadrant D9,788,5031,065,853

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03882
D03882

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038803164
B043701244
C038802182
D042761229

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A188741270.672883%
B188582441.293881%
C18866850.450546%
D188602201.166490%

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 21545 18956 8 8 0.04% 0.04%
B 21545 18956 29 29 0.13% 0.15%
C 21545 18955 7 7 0.03% 0.04%
D 21545 18955 121 121 0.56% 0.64%

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 0 50 81187 175.23 2193 2140 451.1
A 7 16 32481 67.26 2193 2140 451.1
A 0 226 21631 43.21 2193 2140 451.1
B 15 204 1248213 2934.68 2217 2156 424.6
B 0 214 157096 364.91 2217 2156 424.6
B 4 81 107215 247.43 2217 2156 424.6
C 1 16 188887 375.91 2139 2147 496.8
C 5 250 17782 31.47 2139 2147 496.8
C 13 61 17525 30.96 2139 2147 496.8
D 2 136 671272 1288.37 2122 2058 519.4
D 11 241 445936 854.55 2122 2058 519.4
D 2 14 186256 354.62 2122 2058 519.4

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