ASTROSAT CZTI

Data Quality Report

Orbit 23319

Creation date: 2024-06-27T18:52:46.639630
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/AS1A07_148T05_9000003446_23319cztM0_level2.evt modeM0/AS1A07_148T05_9000003446_23319cztM0_level2_quad_clean.evt
Size (bytes)229,901,76027,492,480
Size219.3 MB 26.2 MB
Events in quadrant A1,475,135168,939
Events in quadrant B1,454,978170,785
Events in quadrant C2,205,636148,811
Events in quadrant D1,653,837162,324

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060371
B059082
C083691
D066211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2516893.537361%
B2515943.737575%
C251536714.592445%
D25151385.487078%

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 3826 2516 3 3 0.08% 0.12%
B 3825 2515 0 0 0.00% 0.00%
C 3825 2515 186 186 4.86% 7.40%
D 3825 2515 54 54 1.41% 2.15%

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 6 16 25519 326.72 376 369 77.0
A 13 254 4243 50.33 376 369 77.0
A 0 226 3199 36.76 376 369 77.0
B 12 111 8127 106.98 370 361 72.6
B 11 111 7025 91.8 370 361 72.6
B 14 111 6267 81.36 370 361 72.6
C 10 9 754816 9165.92 349 352 82.3
C 14 238 55832 674.02 349 352 82.3
C 7 247 19523 232.91 349 352 82.3
D 1 52 150510 1675.66 366 358 89.6
D 12 233 63717 707.07 366 358 89.6
D 13 249 39737 439.46 366 358 89.6

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