ASTROSAT CZTI

Data Quality Report

Orbit 22065

Creation date: 2024-06-27T18:36:07.365579
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/AS1A07_149T01_9000003266_22065cztM0_level2.evt modeM0/AS1A07_149T01_9000003266_22065cztM0_level2_quad_clean.evt
Size (bytes)585,815,040119,335,680
Size558.7 MB 113.8 MB
Events in quadrant A3,533,196794,066
Events in quadrant B3,714,783802,549
Events in quadrant C3,536,806767,918
Events in quadrant D6,436,012715,698

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157652
B0161052
C0156982
D0245972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7667500.652146%
B7666991.291417%
C76661021.330550%
D766799512.977697%

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 8257 7667 0 0 0.00% 0.00%
B 8256 7667 12 12 0.15% 0.16%
C 8255 7666 0 0 0.00% 0.00%
D 8257 7668 718 718 8.70% 9.36%

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 3 1 12174 61.66 910 888 183.0
A 2 79 11392 57.39 910 888 183.0
A 13 254 11232 56.51 910 888 183.0
B 3 64 54166 303.88 910 885 175.3
B 0 230 33461 185.8 910 885 175.3
B 6 36 31454 174.35 910 885 175.3
C 14 238 137461 669.63 870 874 204.0
C 13 61 6030 25.28 870 874 204.0
C 8 222 5969 24.98 870 874 204.0
D 1 52 893591 4427.17 834 807 201.7
D 13 249 556057 2753.39 834 807 201.7
D 7 38 538502 2666.34 834 807 201.7

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