ASTROSAT CZTI

Data Quality Report

Orbit 20230116_C07_001T02_9000005486_level2

Creation date: 2023-01-20T13:35:01.164640
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/AS1C07_001T02_9000005486cztM0_level2.fits modeM0/AS1C07_001T02_9000005486cztM0_level2_quad_clean.evt
Size (bytes)695,142,720915,359,040
Size662.9 MB 873.0 MB
Events in quadrant A4,078,4065,676,018
Events in quadrant B3,989,9345,935,312
Events in quadrant C4,083,1945,638,042
Events in quadrant D3,461,6685,040,252

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02207380
B01790540
C01853130
D02207740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03010
B03010
C03010
D03010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016180
B016180
C016180
D016180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7927033084.173079%
B7928214951.885674%
C7927810331.303010%
D7928148306.092254%

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 113327 79275 0 0 0.00% 0.00%
B 113327 79285 0 0 0.00% 0.00%
C 113327 79289 0 0 0.00% 0.00%
D 113327 79218 0 0 0.00% 0.00%

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 7 110 3308 8.63 1063 998 267.8
A 9 19 3286 8.54 1063 998 267.8
A 0 29 3270 8.48 1063 998 267.8
B 2 9 3428 11.75 1055 1007 206.0
B 3 80 3085 10.09 1055 1007 206.0
B 2 8 2813 8.77 1055 1007 206.0
C 1 81 3365 8.53 1080 1013 275.9
C 1 80 3192 7.9 1080 1013 275.9
C 1 65 2905 6.86 1080 1013 275.9
D 7 3 2644 6.59 990 902 264.3
D 10 189 2607 6.45 990 902 264.3
D 4 160 2590 6.38 990 902 264.3

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