ASTROSAT CZTI

Data Quality Report

Orbit 03998

Creation date: 2024-06-27T14:36:10.835270
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_247T01_9000000512_03998cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03998cztM0_level2_quad_clean.evt
Size (bytes)532,702,080121,429,440
Size508.0 MB 115.8 MB
Events in quadrant A3,615,759796,746
Events in quadrant B3,636,493795,371
Events in quadrant C3,330,871790,772
Events in quadrant D5,030,373762,626

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161833
B0159442
C0156562
D0204642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76561612.102926%
B76561351.763323%
C76561341.750261%
D76563234.218913%

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 9091 7658 42 42 0.46% 0.55%
B 9091 7658 0 0 0.00% 0.00%
C 9091 7658 1 1 0.01% 0.01%
D 9091 7658 171 171 1.88% 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 0 50 131229 738.5 862 838 176.6
A 8 15 76241 427.06 862 838 176.6
A 0 118 47740 265.64 862 838 176.6
B 4 81 104773 625.02 873 851 166.3
B 3 0 101268 603.94 873 851 166.3
B 15 204 21010 121.24 873 851 166.3
C 8 128 8587 39.46 847 847 196.1
C 13 61 7255 32.67 847 847 196.1
C 9 144 4265 17.43 847 847 196.1
D 2 63 1358237 6733.04 837 812 201.6
D 13 239 175662 867.28 837 812 201.6
D 2 232 94668 465.54 837 812 201.6

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