ASTROSAT CZTI

Data Quality Report

Orbit 30941

Creation date: 2024-06-27T20:21:25.842849
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_058T10_9000004472_30941cztM0_level2.evt modeM0/AS1A10_058T10_9000004472_30941cztM0_level2_quad_clean.evt
Size (bytes)998,562,240138,464,640
Size952.3 MB 132.1 MB
Events in quadrant A6,033,236858,165
Events in quadrant B9,844,341842,579
Events in quadrant C6,511,536809,698
Events in quadrant D6,996,956807,143

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258752
B0388742
C0269252
D0284742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02560
B02560
C02560
D02560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126701331.049724%
B126702912.296764%
C126703392.675612%
D126691641.294498%

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 13920 12670 1 1 0.01% 0.01%
B 13920 12670 72 72 0.52% 0.57%
C 13920 12670 41 41 0.29% 0.32%
D 13919 12669 48 48 0.34% 0.38%

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 11 47 27857 84.3 1553 1521 312.4
A 13 254 22109 65.9 1553 1521 312.4
A 3 137 16175 46.91 1553 1521 312.4
B 6 159 3455446 11675.62 1523 1479 295.8
B 15 222 124924 417.29 1523 1479 295.8
B 5 172 107260 357.58 1523 1479 295.8
C 14 238 280385 802.37 1474 1481 347.6
C 0 10 176114 502.4 1474 1481 347.6
C 3 233 169062 482.11 1474 1481 347.6
D 8 195 743930 2072.13 1502 1459 358.3
D 2 250 199019 551.36 1502 1459 358.3
D 12 233 184762 511.57 1502 1459 358.3

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