ASTROSAT CZTI

Data Quality Report

Orbit 34162

Creation date: 2024-06-27T20:57:17.217351
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/AS1A11_047T03_9000004880_34162cztM0_level2.evt modeM0/AS1A11_047T03_9000004880_34162cztM0_level2_quad_clean.evt
Size (bytes)171,432,00025,009,920
Size163.5 MB 23.9 MB
Events in quadrant A881,734160,205
Events in quadrant B1,133,037164,258
Events in quadrant C1,263,082154,373
Events in quadrant D1,792,038148,894

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036432
B044661
C048431
D064781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A175810.056883%
B1758341.934016%
C1758925.233220%
D175839322.354949%

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 3880 1759 0 0 0.00% 0.00%
B 3880 1758 19 19 0.49% 1.08%
C 3880 1758 71 71 1.83% 4.04%
D 3880 1758 361 361 9.30% 20.53%

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 10 83 9929 208.04 224 221 46.7
A 13 254 3390 67.91 224 221 46.7
A 13 6 3212 64.1 224 221 46.7
B 5 255 98921 2215.79 224 218 44.5
B 5 172 81827 1832.04 224 218 44.5
B 0 229 25757 573.33 224 218 44.5
C 0 10 315225 6210.08 214 215 50.7
C 15 214 76290 1499.74 214 215 50.7
C 6 96 30880 604.53 214 215 50.7
D 10 118 667016 13233.31 197 191 50.4
D 8 195 272297 5400.01 197 191 50.4
D 13 249 29622 584.07 197 191 50.4

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