ASTROSAT CZTI

Data Quality Report

Orbit 32972

Creation date: 2024-06-27T20:44:05.205811
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/AS1C07_003T01_9000004754_32972cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32972cztM0_level2_quad_clean.evt
Size (bytes)505,065,60086,624,640
Size481.7 MB 82.6 MB
Events in quadrant A2,682,146587,210
Events in quadrant B3,932,160551,014
Events in quadrant C3,167,558562,394
Events in quadrant D5,134,651530,822

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114503
B0152292
C0128132
D0193502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A559970.125022%
B55995038.983747%
C5599951.696732%
D55991552.768351%

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 9185 5600 1 1 0.01% 0.02%
B 9185 5600 293 293 3.19% 5.23%
C 9185 5600 80 80 0.87% 1.43%
D 9185 5600 139 139 1.51% 2.48%

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 9 143 9693 65.04 689 679 138.6
A 13 254 9585 64.26 689 679 138.6
A 3 137 6228 40.04 689 679 138.6
B 5 172 1173084 9304.85 654 639 126.0
B 5 200 91841 723.8 654 639 126.0
B 0 197 40282 314.61 654 639 126.0
C 0 10 332843 2190.69 654 662 151.6
C 14 67 99292 650.45 654 662 151.6
C 1 241 69192 451.95 654 662 151.6
D 8 195 1877214 11065.82 647 635 169.6
D 7 80 439517 2588.0 647 635 169.6
D 13 249 137886 809.34 647 635 169.6

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