ASTROSAT CZTI

Data Quality Report

Orbit 10373

Creation date: 2024-06-27T15:58:33.234397
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/AS1A03_119T02_9000001496_10373cztM0_level2.evt modeM0/AS1A03_119T02_9000001496_10373cztM0_level2_quad_clean.evt
Size (bytes)399,470,400102,576,960
Size381.0 MB 97.8 MB
Events in quadrant A2,807,662691,170
Events in quadrant B2,960,297659,894
Events in quadrant C2,799,513700,032
Events in quadrant D3,110,794625,898

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0299
B03111
C03111
D0299

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02296310264
B02543412685
C02365210980
D02669513923

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023498
B023493
C0234101
D022990

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6292290.460903%
B5979681.137314%
C6288190.302163%
D5948320.537996%

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 9046 6957 0 0 0.00% 0.00%
B 9046 6690 16 16 0.18% 0.24%
C 9045 6951 1 1 0.01% 0.01%
D 9045 6444 3 3 0.03% 0.05%

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 13 251 15570 100.69 722 704 147.6
A 0 226 6434 38.81 722 704 147.6
A 12 194 5837 34.77 722 704 147.6
B 4 239 150493 1147.69 686 669 130.5
B 0 214 71641 543.66 686 669 130.5
B 0 219 26052 194.44 686 669 130.5
C 15 48 14921 86.45 712 717 164.3
C 14 234 6464 34.98 712 717 164.3
C 13 61 5468 28.92 712 717 164.3
D 8 195 228416 1449.83 660 641 157.1
D 1 20 138296 876.2 660 641 157.1
D 1 52 83692 528.64 660 641 157.1

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