ASTROSAT CZTI

Data Quality Report

Orbit 04717

Creation date: 2024-06-27T14:45:58.105622
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_227T01_9000000592_04717cztM0_level2.evt modeM0/AS1G05_227T01_9000000592_04717cztM0_level2_quad_clean.evt
Size (bytes)450,596,16079,781,760
Size429.7 MB 76.1 MB
Events in quadrant A2,986,795499,572
Events in quadrant B3,453,519500,983
Events in quadrant C2,889,742500,613
Events in quadrant D3,886,741473,543

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131772
B0144811
C0130141
D0155801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6321801.265623%
B63211402.214839%
C6321510.806834%
D63211312.072457%

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 7541 6322 0 0 0.00% 0.00%
B 7541 6322 53 53 0.70% 0.84%
C 7541 6322 1 1 0.01% 0.02%
D 7541 6322 59 59 0.78% 0.93%

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 14 20889 129.14 765 751 155.9
A 0 118 11569 69.37 765 751 155.9
A 0 226 9031 53.1 765 751 155.9
B 14 167 237604 1597.4 770 752 148.3
B 5 184 66766 445.22 770 752 148.3
B 15 204 49006 325.44 770 752 148.3
C 9 247 13474 74.44 735 740 171.1
C 9 16 6181 31.81 735 740 171.1
C 13 61 6151 31.63 735 740 171.1
D 2 63 506025 2870.57 726 705 176.0
D 1 31 252100 1428.1 726 705 176.0
D 13 112 124439 702.9 726 705 176.0

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