ASTROSAT CZTI

Data Quality Report

Orbit 06383

Creation date: 2024-06-27T15:06:33.881814
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_164T01_9000000844_06383cztM0_level2.evt modeM0/AS1G06_164T01_9000000844_06383cztM0_level2_quad_clean.evt
Size (bytes)434,439,360103,343,040
Size414.3 MB 98.6 MB
Events in quadrant A3,447,921688,318
Events in quadrant B3,300,219689,771
Events in quadrant C2,785,341671,259
Events in quadrant D3,205,563651,286

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142312
B0137291
C0125411
D0134911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61531071.738989%
B6153971.576467%
C6153300.487567%
D6153610.991386%

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 7413 6154 21 21 0.28% 0.34%
B 7413 6154 12 12 0.16% 0.19%
C 7413 6154 2 2 0.03% 0.03%
D 7413 6154 21 21 0.28% 0.34%

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 8 15 511530 3436.93 740 725 148.6
A 15 174 66234 440.77 740 725 148.6
A 3 1 7999 48.94 740 725 148.6
B 0 229 234701 1697.57 734 718 137.8
B 0 219 94855 682.97 734 718 137.8
B 15 204 94029 676.98 734 718 137.8
C 9 54 20072 120.63 701 704 160.6
C 4 254 13479 79.57 701 704 160.6
C 1 241 12993 76.54 701 704 160.6
D 5 97 146946 845.66 713 690 172.9
D 11 241 131945 758.93 713 690 172.9
D 2 152 115928 666.32 713 690 172.9

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