ASTROSAT CZTI

Data Quality Report

Orbit 48079

Creation date: 2024-08-20T16:44:03.794871
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_071T07_9000006398_48079cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48079cztM0_level2_quad_clean.evt
Size (bytes)506,537,28099,480,960
Size483.1 MB 94.9 MB
Events in quadrant A8,514,506816,697
Events in quadrant B1,466,712121
Events in quadrant C3,610,623855,000
Events in quadrant D4,522,478779,108

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0316282
B089554
C0167002
D0190852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80714605.699418%
B8070806999.987608%
C80701211.499380%
D80701932.391574%

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 9471 8071 89 89 0.94% 1.10%
B 9469 8069 0 0 0.00% 0.00%
C 9470 8071 22 22 0.23% 0.27%
D 9470 8070 75 75 0.79% 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 10 83 4817261 26011.91 883 862 185.2
A 13 248 138629 744.04 883 862 185.2
A 0 31 130166 698.33 883 862 185.2
B 2 177 1108603 81646.35 57 55 13.6
B 4 21 118768 8743.4 57 55 13.6
B 0 200 5968 435.5 57 55 13.6
C 14 254 106952 512.49 884 889 207.0
C 15 208 25140 117.18 884 889 207.0
C 12 250 12641 56.78 884 889 207.0
D 2 165 489222 2201.43 883 853 221.8
D 2 249 340786 1532.32 883 853 221.8
D 11 224 99781 445.94 883 853 221.8

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