ASTROSAT CZTI

Data Quality Report

Orbit 30664

Creation date: 2024-06-27T20:18:19.704948
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/AS1A10_094T78_9000004420_30664cztM0_level2.evt modeM0/AS1A10_094T78_9000004420_30664cztM0_level2_quad_clean.evt
Size (bytes)320,875,20051,626,880
Size306.0 MB 49.2 MB
Events in quadrant A1,344,725361,535
Events in quadrant B2,240,893351,583
Events in quadrant C1,461,098341,658
Events in quadrant D4,477,955305,658

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059940
B088900
C061850
D0153190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2830100.353357%
B2831421.483575%
C2831260.918403%
D283157620.346167%

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 2830 2830 4 4 0.14% 0.14%
B 2831 2831 16 16 0.57% 0.57%
C 2831 2831 1 1 0.04% 0.04%
D 2831 2831 711 711 25.11% 25.11%

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 13 105549 1601.22 320 313 65.7
A 13 254 5375 77.02 320 313 65.7
A 3 137 3260 44.84 320 313 65.7
B 6 159 819974 13310.05 317 309 61.6
B 5 172 61363 991.42 317 309 61.6
B 15 32 48559 783.5 317 309 61.6
C 3 233 219404 3055.23 300 302 71.7
C 14 238 49257 682.65 300 302 71.7
C 10 22 8677 116.78 300 302 71.7
D 8 195 2036973 29185.44 287 279 69.8
D 12 79 977232 13999.55 287 279 69.8
D 12 227 105098 1502.04 287 279 69.8

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