ASTROSAT CZTI

Data Quality Report

Orbit 45513

Creation date: 2024-06-27T23:13:09.213437
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/AS1A13_031T02_9000006100_45513cztM0_level2.fits modeM0/AS1A13_031T02_9000006100_45513cztM0_level2_quad_clean.evt
Size (bytes)448,312,320106,418,880
Size427.5 MB 101.5 MB
Events in quadrant A5,390,219709,182
Events in quadrant B3,643,295727,219
Events in quadrant C3,148,253693,946
Events in quadrant D3,897,686628,813

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205982
B0152531
C0142371
D0160921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66371442.169655%
B66381882.832178%
C66381181.777644%
D66382133.208798%

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 7537 6638 0 0 0.00% 0.00%
B 7538 6639 64 64 0.85% 0.96%
C 7538 6639 61 61 0.81% 0.92%
D 7538 6639 119 119 1.58% 1.79%

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 10 83 2496299 16110.65 745 728 154.9
A 3 137 8512 50.25 745 728 154.9
A 2 79 7660 44.75 745 728 154.9
B 15 201 308387 2094.19 739 717 146.9
B 5 172 264447 1795.11 739 717 146.9
B 12 16 46377 310.79 739 717 146.9
C 14 254 293607 1701.0 728 733 172.2
C 7 253 7788 40.98 728 733 172.2
C 3 233 6309 32.39 728 733 172.2
D 5 222 367589 1982.89 728 701 185.0
D 2 249 278820 1503.13 728 701 185.0
D 13 249 204741 1102.76 728 701 185.0

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