ASTROSAT CZTI

Data Quality Report

Orbit 32977

Creation date: 2024-06-27T20:44:09.017084
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_32977cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32977cztM0_level2_quad_clean.evt
Size (bytes)405,403,20060,914,880
Size386.6 MB 58.1 MB
Events in quadrant A2,378,820383,618
Events in quadrant B3,164,990385,181
Events in quadrant C2,768,684361,996
Events in quadrant D3,617,162354,910

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103623
B0126632
C0114242
D0141752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A511790.175884%
B51172114.123510%
C51171893.693570%
D51171332.599179%

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 7089 5118 0 0 0.00% 0.00%
B 7089 5118 121 121 1.71% 2.36%
C 7089 5118 100 100 1.41% 1.95%
D 7089 5118 114 114 1.61% 2.23%

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 9125 69.32 608 596 123.0
A 12 227 9016 68.43 608 596 123.0
A 13 254 8623 65.24 608 596 123.0
B 5 172 710726 6127.24 604 589 115.9
B 0 197 45577 388.17 604 589 115.9
B 0 199 15265 126.63 604 589 115.9
C 0 10 428347 3160.78 583 589 135.3
C 14 67 21856 157.15 583 589 135.3
C 1 241 18054 129.05 583 589 135.3
D 8 195 363286 2356.69 583 572 153.9
D 12 227 272779 1768.63 583 572 153.9
D 13 153 258877 1678.3 583 572 153.9

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