ASTROSAT CZTI

Data Quality Report

Orbit 30008

Creation date: 2024-06-27T20:09:48.788417
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_071T01_9000004310_30008cztM0_level2.evt modeM0/AS1A10_071T01_9000004310_30008cztM0_level2_quad_clean.evt
Size (bytes)347,774,40035,876,160
Size331.7 MB 34.2 MB
Events in quadrant A1,719,141238,254
Events in quadrant B3,570,060213,176
Events in quadrant C1,861,260221,728
Events in quadrant D3,170,649191,567

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068571
B0126601
C075951
D0115391

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3105220.708535%
B310540613.075684%
C3105581.867955%
D310545514.653784%

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 3105 3105 1 1 0.03% 0.03%
B 3105 3105 265 265 8.53% 8.53%
C 3105 3105 0 0 0.00% 0.00%
D 3104 3104 363 363 11.69% 11.69%

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 8 192 15706 173.39 441 435 88.1
A 13 254 5429 56.7 441 435 88.1
A 3 137 3901 39.35 441 435 88.1
B 6 36 1153493 14572.98 416 407 79.1
B 6 159 775194 9791.94 416 407 79.1
B 12 111 9353 113.06 416 407 79.1
C 3 233 172652 1777.18 413 416 96.9
C 14 238 68740 704.99 413 416 96.9
C 2 114 7305 71.08 413 416 96.9
D 7 80 1500380 16067.31 390 383 93.4
D 8 195 124224 1326.53 390 383 93.4
D 11 135 54755 582.41 390 383 93.4

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