ASTROSAT CZTI

Data Quality Report

Orbit 13170

Creation date: 2024-06-27T16:37:10.392932
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/AS1G08_034T01_9000001944_13170cztM0_level2.evt modeM0/AS1G08_034T01_9000001944_13170cztM0_level2_quad_clean.evt
Size (bytes)340,473,60071,550,720
Size324.7 MB 68.2 MB
Events in quadrant A2,308,973455,924
Events in quadrant B3,051,985464,776
Events in quadrant C2,162,023474,103
Events in quadrant D2,472,000445,832

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098752
B0122211
C095901
D0105851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4642260.560103%
B46423447.410599%
C4642220.473934%
D4642521.120207%

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 5933 4644 3 3 0.05% 0.06%
B 5932 4643 208 208 3.51% 4.48%
C 5933 4644 0 0 0.00% 0.00%
D 5933 4644 16 16 0.27% 0.34%

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 12 189 71986 623.49 563 551 114.6
A 8 192 24460 208.68 563 551 114.6
A 15 69 13553 113.48 563 551 114.6
B 4 239 737381 7097.98 549 536 103.8
B 0 230 48621 463.2 549 536 103.8
B 5 32 29930 283.15 549 536 103.8
C 13 61 3896 26.22 553 557 127.3
C 15 208 3734 24.95 553 557 127.3
C 3 202 1416 6.75 553 557 127.3
D 1 52 285928 2206.47 543 529 129.3
D 14 34 81193 623.63 543 529 129.3
D 8 195 32631 248.19 543 529 129.3

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