ASTROSAT CZTI

Data Quality Report

Orbit 25032

Creation date: 2024-06-27T19:12:59.679574
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_134T03_9000003670_25032cztM0_level2.evt modeM0/AS1A07_134T03_9000003670_25032cztM0_level2_quad_clean.evt
Size (bytes)327,049,92034,548,480
Size311.9 MB 32.9 MB
Events in quadrant A1,755,517197,086
Events in quadrant B1,765,054201,666
Events in quadrant C1,852,114192,721
Events in quadrant D4,272,514184,831

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076550
B076590
C078810
D0153930

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A381030.078740%
B381120.052480%
C3811220.577276%
D38111854.854369%

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 3810 3810 0 0 0.00% 0.00%
B 3811 3811 0 0 0.00% 0.00%
C 3811 3811 1 1 0.03% 0.03%
D 3811 3811 164 164 4.30% 4.30%

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 11 208 13727 142.29 452 442 93.4
A 13 254 5029 49.13 452 442 93.4
A 3 137 4234 40.61 452 442 93.4
B 12 111 10642 117.41 447 436 86.9
B 11 111 9848 108.28 447 436 86.9
B 14 111 8723 95.33 447 436 86.9
C 7 247 86285 830.05 432 434 103.4
C 14 238 69529 668.04 432 434 103.4
C 0 239 8569 78.65 432 434 103.4
D 8 195 2180117 20278.79 434 421 107.5
D 1 52 405360 3767.35 434 421 107.5
D 10 70 17008 154.32 434 421 107.5

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