ASTROSAT CZTI

Data Quality Report

Orbit 00632

Creation date: 2024-06-27T14:00:51.751942
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/AS1P01_126T03_9000000088_00632cztM0_level2.evt modeM0/AS1P01_126T03_9000000088_00632cztM0_level2_quad_clean.evt
Size (bytes)759,928,32068,382,720
Size724.7 MB 65.2 MB
Events in quadrant A5,792,643429,775
Events in quadrant B5,835,081439,233
Events in quadrant C5,457,021428,723
Events in quadrant D5,588,429414,255

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0390

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208422
B0209842
C0199052
D0202222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A511880.156311%
B511850.097694%
C5118180.351700%
D5118170.332161%

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 7244 5119 88 88 1.21% 1.72%
B 7243 5118 72 72 0.99% 1.41%
C 7243 5118 60 60 0.83% 1.17%
D 7244 5119 69 69 0.95% 1.35%

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 13 240 50926 152.08 1473 1463 325.3
A 0 238 23233 66.93 1473 1463 325.3
A 13 190 13549 37.16 1473 1463 325.3
B 5 191 38015 103.03 1504 1516 354.2
B 4 185 20371 53.23 1504 1516 354.2
B 8 4 9939 23.78 1504 1516 354.2
C 3 159 78870 204.61 1354 1405 378.6
C 9 52 31256 78.85 1354 1405 378.6
C 8 208 10378 23.7 1354 1405 378.6
D 13 216 285104 691.14 1286 1341 410.6
D 1 4 230810 558.9 1286 1341 410.6
D 12 237 55243 131.28 1286 1341 410.6

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