ASTROSAT CZTI

Data Quality Report

Orbit 21453

Creation date: 2024-06-27T18:28:06.178179
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/AS1A06_009T05_9000003164_21453cztM0_level2.evt modeM0/AS1A06_009T05_9000003164_21453cztM0_level2_quad_clean.evt
Size (bytes)106,211,52028,546,560
Size101.3 MB 27.2 MB
Events in quadrant A684,300197,592
Events in quadrant B721,708197,557
Events in quadrant C877,100186,234
Events in quadrant D842,560185,372

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027140
B028600
C035160
D033150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129620.154321%
B129600.000000%
C1296100.771605%
D1296181.388889%

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 1296 1296 0 0 0.00% 0.00%
B 1296 1296 0 0 0.00% 0.00%
C 1296 1296 0 0 0.00% 0.00%
D 1296 1296 17 17 1.31% 1.31%

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 11 47 7463 197.45 175 172 36.9
A 13 254 2435 61.29 175 172 36.9
A 0 226 1600 38.67 175 172 36.9
B 0 228 14154 412.03 169 166 33.9
B 0 190 9608 278.13 169 166 33.9
B 0 229 9515 275.39 169 166 33.9
C 3 233 223044 5754.6 160 162 38.7
C 14 238 26390 677.18 160 162 38.7
C 13 61 1179 26.26 160 162 38.7
D 12 235 52830 1249.22 168 163 42.2
D 6 143 34950 825.12 168 163 42.2
D 7 38 30134 710.89 168 163 42.2

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