ASTROSAT CZTI

Data Quality Report

Orbit 38343

Creation date: 2024-06-27T21:51:28.685009
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/AS1A10_094T24_9000005374_38343cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38343cztM0_level2_quad_clean.evt
Size (bytes)1,091,067,840249,436,800
Size1.0 GB 237.9 MB
Events in quadrant A8,325,7291,680,206
Events in quadrant B8,220,3441,722,352
Events in quadrant C7,283,4611,692,180
Events in quadrant D15,394,1091,417,533

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03100
B03100
C03100
D03100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0337115
B0342944
C0309954
D0563884

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0510
B0510
C0510
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A150601731.148738%
B150601781.181939%
C15060260.172643%
D1506014649.721116%

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 19988 15063 107 107 0.54% 0.71%
B 19988 15063 113 113 0.57% 0.75%
C 19988 15063 12 12 0.06% 0.08%
D 19988 15063 1492 1492 7.46% 9.91%

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 1062532 3176.64 1676 1644 334.0
A 13 248 512023 1528.24 1676 1644 334.0
A 12 189 142196 420.86 1676 1644 334.0
B 0 183 627278 1994.77 1670 1626 313.6
B 0 229 232692 736.71 1670 1626 313.6
B 0 186 150527 474.74 1670 1626 313.6
C 15 214 638774 1682.41 1645 1652 378.7
C 14 254 101659 264.08 1645 1652 378.7
C 1 23 50868 129.96 1645 1652 378.7
D 10 203 5276333 13620.23 1596 1553 387.3
D 12 235 1380300 3560.12 1596 1553 387.3
D 2 250 638915 1645.76 1596 1553 387.3

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