ASTROSAT CZTI

Data Quality Report

Orbit 10966

Creation date: 2024-06-27T16:06:53.545893
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_030T01_9000001592_10966cztM0_level2.evt modeM0/AS1G08_030T01_9000001592_10966cztM0_level2_quad_clean.evt
Size (bytes)279,521,28043,323,840
Size266.6 MB 41.3 MB
Events in quadrant A2,633,329263,003
Events in quadrant B2,061,627276,654
Events in quadrant C1,529,178277,974
Events in quadrant D2,018,559262,460

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098722
B081071
C066521
D081361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A326036411.165644%
B32601404.294479%
C3260200.613497%
D3260651.993865%

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 4260 3261 265 265 6.22% 8.13%
B 4260 3260 71 71 1.67% 2.18%
C 4260 3261 0 0 0.00% 0.00%
D 4260 3261 39 39 0.92% 1.20%

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 8 5 1140235 14263.9 383 374 79.9
A 11 29 6817 80.63 383 374 79.9
A 13 251 4890 56.51 383 374 79.9
B 4 239 434527 5572.56 398 388 77.9
B 11 51 14640 182.94 398 388 77.9
B 0 229 13282 165.51 398 388 77.9
C 13 61 2896 27.15 391 393 92.2
C 14 234 1521 12.24 391 393 92.2
C 5 207 1452 11.49 391 393 92.2
D 1 52 342455 3568.47 389 379 95.9
D 13 104 63880 662.43 389 379 95.9
D 5 222 33999 350.72 389 379 95.9

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