ASTROSAT CZTI

Data Quality Report

Orbit 20529

Creation date: 2024-06-27T18:16:27.624160
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_115T03_9000003032_20529cztM0_level2.evt modeM0/AS1A05_115T03_9000003032_20529cztM0_level2_quad_clean.evt
Size (bytes)536,544,00074,727,360
Size511.7 MB 71.3 MB
Events in quadrant A3,570,772449,932
Events in quadrant B3,795,416450,796
Events in quadrant C3,466,222432,180
Events in quadrant D4,920,084420,380

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154631
B0159151
C0150721
D0195211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73231772.417042%
B73241662.266521%
C73241502.048061%
D73244636.321682%

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 7573 7323 19 19 0.25% 0.26%
B 7573 7323 3 3 0.04% 0.04%
C 7573 7323 0 0 0.00% 0.00%
D 7574 7324 290 290 3.83% 3.96%

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 14 254 149946 830.43 884 862 179.5
A 5 16 7625 37.67 884 862 179.5
A 0 226 7542 37.21 884 862 179.5
B 7 220 169348 987.95 887 864 170.5
B 0 189 44358 255.04 887 864 170.5
B 0 197 39482 226.45 887 864 170.5
C 14 238 131154 650.42 850 853 200.3
C 3 9 8039 35.87 850 853 200.3
C 3 233 7446 32.91 850 853 200.3
D 1 52 825736 3971.3 842 814 207.7
D 7 238 352175 1691.51 842 814 207.7
D 7 38 125451 600.02 842 814 207.7

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