ASTROSAT CZTI

Data Quality Report

Orbit 45270

Creation date: 2024-06-27T23:11:45.945659
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_024T03_9000006064_45270cztM0_level2.fits modeM0/AS1A13_024T03_9000006064_45270cztM0_level2_quad_clean.evt
Size (bytes)478,402,560109,578,240
Size456.2 MB 104.5 MB
Events in quadrant A5,352,643736,525
Events in quadrant B3,100,682791,118
Events in quadrant C3,663,471728,466
Events in quadrant D5,105,463624,719

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207062
B0134083
C0150272
D0196982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62682143.414167%
B6268490.781749%
C62682283.637524%
D62685889.380983%

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 7523 6269 64 64 0.85% 1.02%
B 7523 6269 11 11 0.15% 0.18%
C 7523 6268 189 189 2.51% 3.02%
D 7523 6269 546 546 7.26% 8.71%

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 2421405 15959.82 732 718 151.7
A 13 248 92652 606.13 732 718 151.7
A 13 254 9266 56.36 732 718 151.7
B 4 171 43196 293.77 745 724 144.6
B 5 255 26690 179.6 745 724 144.6
B 5 172 25515 171.47 745 724 144.6
C 14 254 551002 3281.38 718 724 167.7
C 12 2 256464 1525.01 718 724 167.7
C 3 233 31303 182.35 718 724 167.7
D 13 249 697608 3985.51 689 667 174.9
D 9 49 429650 2453.17 689 667 174.9
D 2 249 427784 2442.5 689 667 174.9

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