ASTROSAT CZTI

Data Quality Report

Orbit 26429

Creation date: 2024-06-27T19:28:55.125175
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_108T02_9000003822_26429cztM0_level2.evt modeM0/AS1A09_108T02_9000003822_26429cztM0_level2_quad_clean.evt
Size (bytes)263,237,76047,952,000
Size251.0 MB 45.7 MB
Events in quadrant A1,790,509310,776
Events in quadrant B1,866,172319,587
Events in quadrant C2,232,425298,877
Events in quadrant D1,872,154303,080

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075330
B076490
C087690
D077100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3090712.297735%
B3090912.944984%
C30902287.378641%
D3089782.525089%

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 4355 3090 7 7 0.16% 0.23%
B 4355 3090 3 3 0.07% 0.10%
C 4355 3090 92 92 2.11% 2.98%
D 4354 3089 22 22 0.51% 0.71%

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 0 13 74805 844.29 434 427 88.1
A 6 16 39454 443.01 434 427 88.1
A 13 254 4866 50.39 434 427 88.1
B 0 244 84259 1014.44 434 425 82.6
B 5 172 30113 359.24 434 425 82.6
B 7 205 19094 225.91 434 425 82.6
C 2 16 423238 4339.33 415 419 97.4
C 3 233 73675 751.82 415 419 97.4
C 14 238 66288 676.0 415 419 97.4
D 1 52 162247 1595.67 425 416 101.4
D 11 176 67757 663.99 425 416 101.4
D 2 234 14290 136.8 425 416 101.4

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