ASTROSAT CZTI

Data Quality Report

Orbit 00582

Creation date: 2024-06-27T14:00:07.657032
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/AS1P01_118T02_9000000082_00582cztM0_level2.evt modeM0/AS1P01_118T02_9000000082_00582cztM0_level2_quad_clean.evt
Size (bytes)873,236,16063,875,520
Size832.8 MB 60.9 MB
Events in quadrant A6,532,251390,445
Events in quadrant B6,812,346394,839
Events in quadrant C6,115,117392,466
Events in quadrant D6,627,939378,426

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231903
B0240532
C0220442
D0235172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0430
B0430
C0430
D0430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A539570.129750%
B5395290.537535%
C5395350.648749%
D5395500.926784%

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 9705 5397 124 124 1.28% 2.30%
B 9705 5397 175 175 1.80% 3.24%
C 9705 5397 133 133 1.37% 2.46%
D 9705 5397 207 207 2.13% 3.84%

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 13 160 35634 91.67 1667 1653 370.7
A 0 69 22735 56.87 1667 1653 370.7
A 0 238 12983 30.56 1667 1653 370.7
B 7 221 343330 877.42 1638 1649 389.4
B 0 230 73675 184.96 1638 1649 389.4
B 4 250 39541 97.31 1638 1649 389.4
C 3 159 238567 571.13 1475 1523 415.0
C 15 241 44364 103.22 1475 1523 415.0
C 1 1 23541 53.05 1475 1523 415.0
D 13 216 271699 592.15 1455 1513 456.3
D 12 237 216780 471.79 1455 1513 456.3
D 1 4 160511 348.47 1455 1513 456.3

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