ASTROSAT CZTI

Data Quality Report

Orbit 52933

Creation date: 2025-07-17T05:03:37.880919
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_011T06_9000006484_52933cztM0_level2.fits modeM0/AS1C09_011T06_9000006484_52933cztM0_level2_quad_clean.evt
Size (bytes)313,822,08020,257,920
Size299.3 MB 19.3 MB
Events in quadrant A4,991,5511,651
Events in quadrant B1,316,307205,719
Events in quadrant C1,727,677163,342
Events in quadrant D3,424,93098,456

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162060
B052840
C065610
D0115250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1988197899.496982%
B1989331.659125%
C198923411.764706%
D198996548.516843%

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 1987 1987 1768 1768 88.98% 88.98%
B 1989 1989 19 19 0.96% 0.96%
C 1989 1989 174 174 8.75% 8.75%
D 1989 1989 810 810 40.72% 40.72%

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 9 191 4625018 256989.62 65 63 18.0
A 4 254 29322 1625.8 65 63 18.0
A 15 174 21310 1180.61 65 63 18.0
B 10 254 279517 6319.68 199 193 44.2
B 1 255 113232 2557.5 199 193 44.2
B 8 128 41105 925.63 199 193 44.2
C 15 224 535031 10204.18 181 179 52.4
C 15 254 159531 3040.2 181 179 52.4
C 12 249 100223 1908.69 181 179 52.4
D 10 172 1061442 24569.0 147 140 43.2
D 15 78 713393 16511.71 147 140 43.2
D 8 176 670565 15520.25 147 140 43.2

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