ASTROSAT CZTI

Data Quality Report

Orbit 47242

Creation date: 2024-06-27T23:33:17.899301
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/AS1C09_005T01_9000006304_47242cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47242cztM0_level2_quad_clean.evt
Size (bytes)555,503,040114,549,120
Size529.8 MB 109.2 MB
Events in quadrant A7,812,505743,196
Events in quadrant B3,579,625808,622
Events in quadrant C4,901,547746,063
Events in quadrant D3,753,100705,915

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278312
B0150682
C0190432
D0159642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66645378.058223%
B6664771.155462%
C66643695.537215%
D6664931.395558%

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 9074 6666 360 360 3.97% 5.40%
B 9074 6666 22 22 0.24% 0.33%
C 9074 6666 308 308 3.39% 4.62%
D 9074 6666 66 66 0.73% 0.99%

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 3603682 23461.27 745 731 153.6
A 9 191 1322890 8609.48 745 731 153.6
A 13 254 11183 68.06 745 731 153.6
B 0 190 305151 2086.16 766 743 145.9
B 0 200 76963 522.35 766 743 145.9
B 0 198 45186 304.58 766 743 145.9
C 10 9 1890141 10906.16 748 754 173.2
C 14 254 37916 214.51 748 754 173.2
C 0 207 35934 203.07 748 754 173.2
D 1 47 301028 1596.38 752 729 188.1
D 2 37 289242 1533.72 752 729 188.1
D 12 1 99531 525.23 752 729 188.1

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