ASTROSAT CZTI

Data Quality Report

Orbit 19703

Creation date: 2024-06-27T18:05:47.194889
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/AS1A05_013T01_9000002944_19703cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19703cztM0_level2_quad_clean.evt
Size (bytes)842,624,640138,182,400
Size803.6 MB 131.8 MB
Events in quadrant A5,945,658846,958
Events in quadrant B6,163,016859,276
Events in quadrant C6,167,679822,750
Events in quadrant D6,415,540811,350

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02480
B02480
C02480
D02480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254782
B0257262
C0254762
D0269742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A122102251.842752%
B122102512.055692%
C122103062.506143%
D122112902.374908%

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 13625 12210 8 8 0.06% 0.07%
B 13625 12210 6 6 0.04% 0.05%
C 13625 12210 0 0 0.00% 0.00%
D 13626 12211 79 79 0.58% 0.65%

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 5 16 125371 406.19 1512 1481 305.0
A 0 226 13120 38.16 1512 1481 305.0
A 3 137 12088 34.78 1512 1481 305.0
B 4 216 66471 226.95 1510 1477 286.4
B 0 198 57106 194.25 1510 1477 286.4
B 12 111 34850 116.53 1510 1477 286.4
C 3 233 249603 736.23 1454 1464 337.0
C 14 238 226767 668.47 1454 1464 337.0
C 7 247 12072 31.47 1454 1464 337.0
D 2 16 451230 1272.02 1472 1432 353.6
D 1 52 329308 927.23 1472 1432 353.6
D 2 234 46330 126.97 1472 1432 353.6

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