ASTROSAT CZTI

Data Quality Report

Orbit 07607

Creation date: 2024-06-27T15:21:44.511665
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/AS1G06_117T01_9000001046_07607cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07607cztM0_level2_quad_clean.evt
Size (bytes)1,606,858,560236,168,640
Size1.5 GB 225.2 MB
Events in quadrant A8,453,5541,506,708
Events in quadrant B9,034,5131,531,255
Events in quadrant C17,519,2371,418,656
Events in quadrant D12,381,5571,393,073

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03860
B03860
C03860
D03860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0386735
B0397796
C0652004
D0500826

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189041270.671815%
B189031951.031582%
C18904253413.404570%
D1890312306.506904%

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 21070 18910 1 1 0.00% 0.01%
B 21070 18910 22 22 0.10% 0.12%
C 21070 18909 2206 2206 10.47% 11.67%
D 21070 18910 1043 1043 4.95% 5.52%

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 0 226 20662 41.92 2190 2143 441.7
A 12 194 19456 39.19 2190 2143 441.7
A 3 1 17870 35.6 2190 2143 441.7
B 10 245 119275 278.86 2208 2149 420.0
B 0 219 113256 264.53 2208 2149 420.0
B 0 214 80192 185.81 2208 2149 420.0
C 9 68 8304930 17436.08 2050 2060 476.2
C 8 229 1158850 2429.27 2050 2060 476.2
C 4 254 41522 82.87 2050 2060 476.2
D 2 136 2550174 5041.41 2069 2002 505.4
D 13 104 567164 1118.14 2069 2002 505.4
D 2 152 551594 1087.34 2069 2002 505.4

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