ASTROSAT CZTI

Data Quality Report

Orbit 05323

Creation date: 2024-06-27T14:53:52.788600
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/AS1G05_240T01_9000000674_05323cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05323cztM0_level2_quad_clean.evt
Size (bytes)427,829,76071,884,800
Size408.0 MB 68.6 MB
Events in quadrant A3,114,665437,312
Events in quadrant B3,216,785444,701
Events in quadrant C3,114,952430,211
Events in quadrant D3,071,997414,564

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136623
B0139122
C0136402
D0137932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64511101.705162%
B64511121.736165%
C6451630.976593%
D6451731.131608%

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 8546 6451 26 26 0.30% 0.40%
B 8546 6451 22 22 0.26% 0.34%
C 8546 6451 0 0 0.00% 0.00%
D 8546 6452 15 15 0.18% 0.23%

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 0 50 126688 800.26 769 751 157.4
A 0 247 17832 108.54 769 751 157.4
A 0 226 9092 53.0 769 751 157.4
B 10 16 77843 513.1 781 763 150.2
B 15 204 54234 355.94 781 763 150.2
B 4 48 33123 215.41 781 763 150.2
C 1 16 179557 1038.92 747 750 172.1
C 14 67 18642 103.96 747 750 172.1
C 13 61 5982 30.4 747 750 172.1
D 2 234 118847 652.59 741 718 181.0
D 2 14 47388 257.82 741 718 181.0
D 2 63 42403 230.29 741 718 181.0

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