ASTROSAT CZTI

Data Quality Report

Orbit 46187

Creation date: 2024-06-27T23:20:08.769421
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_093T40_9000006182_46187cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46187cztM0_level2_quad_clean.evt
Size (bytes)494,994,240109,224,000
Size472.1 MB 104.2 MB
Events in quadrant A6,314,080729,993
Events in quadrant B3,932,134752,755
Events in quadrant C2,979,333713,139
Events in quadrant D4,580,245646,248

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231461
B0160481
C0138551
D0182481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66692353.523767%
B66691181.769381%
C6669290.434848%
D66702223.328336%

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 7549 6670 47 47 0.62% 0.70%
B 7549 6670 61 61 0.81% 0.91%
C 7549 6670 15 15 0.20% 0.22%
D 7550 6671 179 179 2.37% 2.68%

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 3023036 20015.7 730 714 151.0
A 13 248 375845 2484.35 730 714 151.0
A 9 191 54370 355.34 730 714 151.0
B 3 112 714737 5050.88 731 709 141.4
B 5 172 226501 1597.2 731 709 141.4
B 0 190 35191 243.92 731 709 141.4
C 12 2 114531 682.64 715 717 166.7
C 14 254 32711 191.89 715 717 166.7
C 12 249 16135 92.47 715 717 166.7
D 1 52 1302170 7370.23 708 686 176.6
D 13 249 195301 1102.09 708 686 176.6
D 8 128 96269 541.28 708 686 176.6

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