ASTROSAT CZTI

Data Quality Report

Orbit 28514

Creation date: 2024-06-27T19:52:34.688697
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_110T05_9000004098_28514cztM0_level2.evt modeM0/AS1A10_110T05_9000004098_28514cztM0_level2_quad_clean.evt
Size (bytes)254,802,24041,679,360
Size243.0 MB 39.7 MB
Events in quadrant A1,561,791269,329
Events in quadrant B1,657,773269,142
Events in quadrant C1,586,416254,400
Events in quadrant D2,702,090251,729

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064810
B067690
C064540
D0103300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A304410.032852%
B304580.262726%
C3045120.394089%
D30451906.239737%

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 3044 3044 0 0 0.00% 0.00%
B 3045 3045 0 0 0.00% 0.00%
C 3045 3045 0 0 0.00% 0.00%
D 3045 3045 223 223 7.32% 7.32%

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 12 96 22622 278.73 397 391 79.8
A 13 254 5135 59.48 397 391 79.8
A 13 170 4023 45.54 397 391 79.8
B 0 230 121728 1661.74 390 381 73.0
B 12 111 8152 106.42 390 381 73.0
B 11 111 7562 98.34 390 381 73.0
C 14 238 63826 718.4 379 382 88.3
C 3 233 26735 298.41 379 382 88.3
C 7 247 12633 138.72 379 382 88.3
D 8 195 825441 8940.31 384 375 92.3
D 1 52 247325 2675.92 384 375 92.3
D 12 233 71764 773.56 384 375 92.3

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