ASTROSAT CZTI

Data Quality Report

Orbit 17414

Creation date: 2024-06-27T17:36:13.906278
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_182T03_9000002576_17414cztM0_level2.evt modeM0/AS1A05_182T03_9000002576_17414cztM0_level2_quad_clean.evt
Size (bytes)126,904,32032,256,000
Size121.0 MB 30.8 MB
Events in quadrant A784,888224,032
Events in quadrant B810,324223,556
Events in quadrant C761,659211,202
Events in quadrant D1,380,530204,987

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032490
B032950
C030850
D050930

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152130.197239%
B1522100.657030%
C152260.394218%
D1522845.519054%

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 1521 1521 2 2 0.13% 0.13%
B 1522 1522 10 10 0.66% 0.66%
C 1522 1522 0 0 0.00% 0.00%
D 1522 1522 69 69 4.53% 4.53%

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 6 16 51515 1289.96 190 187 39.8
A 0 226 1698 37.97 190 187 39.8
A 12 194 1538 33.95 190 187 39.8
B 5 172 30133 827.85 186 182 36.2
B 0 197 24757 679.25 186 182 36.2
B 4 216 10657 289.52 186 182 36.2
C 14 238 28936 665.57 181 182 43.2
C 5 218 16269 372.37 181 182 43.2
C 3 233 7555 170.66 181 182 43.2
D 11 176 413697 8977.33 185 180 46.1
D 13 232 159023 3448.43 185 180 46.1
D 13 189 50495 1092.32 185 180 46.1

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