ASTROSAT CZTI

Data Quality Report

Orbit 39129

Creation date: 2024-06-27T22:01:05.277446
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/AS1C06_010T05_9000005436_39129cztM0_level2.fits modeM0/AS1C06_010T05_9000005436_39129cztM0_level2_quad_clean.evt
Size (bytes)198,538,56031,904,640
Size189.3 MB 30.4 MB
Events in quadrant A1,062,983248,250
Events in quadrant B1,365,392234,467
Events in quadrant C1,193,678227,092
Events in quadrant D3,578,981119,358

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042481
B052051
C046751
D0119071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A187760.319659%
B18771226.499734%
C1877341.811401%
D187798352.370804%

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 1877 1877 6 6 0.32% 0.32%
B 1877 1877 93 93 4.95% 4.95%
C 1877 1877 32 32 1.70% 1.70%
D 1877 1877 896 896 47.74% 47.74%

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 10 83 156634 3326.07 224 219 47.0
A 13 248 38842 821.3 224 219 47.0
A 13 254 2752 53.86 224 219 47.0
B 5 172 262485 6312.72 212 206 41.5
B 5 184 196808 4731.96 212 206 41.5
B 0 213 33823 809.12 212 206 41.5
C 9 187 278648 5579.83 212 212 49.9
C 15 214 80801 1615.0 212 212 49.9
C 15 208 2325 42.34 212 212 49.9
D 12 235 2446688 51713.02 190 184 47.3
D 5 222 72247 1523.23 190 184 47.3
D 2 153 69875 1473.09 190 184 47.3

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