ASTROSAT CZTI

Data Quality Report

Orbit 27739

Creation date: 2024-06-27T19:43:44.608098
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/AS1A09_038T43_9000003994_27739cztM0_level2.evt modeM0/AS1A09_038T43_9000003994_27739cztM0_level2_quad_clean.evt
Size (bytes)168,125,76042,531,840
Size160.3 MB 40.6 MB
Events in quadrant A1,117,200287,933
Events in quadrant B1,140,422295,057
Events in quadrant C1,407,781271,201
Events in quadrant D1,270,190270,266

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A048460
B048640
C056330
D052980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22611496.590004%
B22611647.253428%
C22612179.597523%
D22611637.209199%

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 2461 2261 0 0 0.00% 0.00%
B 2461 2261 0 0 0.00% 0.00%
C 2461 2262 9 9 0.37% 0.40%
D 2460 2261 24 24 0.98% 1.06%

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 13 254 4045 62.55 287 278 60.2
A 8 192 3426 52.27 287 278 60.2
A 3 137 2983 44.92 287 278 60.2
B 12 111 7144 117.95 288 279 58.2
B 11 111 6501 106.9 288 279 58.2
B 14 111 5971 97.79 288 279 58.2
C 3 233 206608 3026.81 279 278 68.2
C 6 112 63783 931.6 279 278 68.2
C 14 238 43537 634.6 279 278 68.2
D 11 176 134314 1915.18 285 275 70.0
D 1 52 30681 434.45 285 275 70.0
D 2 250 21279 300.11 285 275 70.0

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