ASTROSAT CZTI

Data Quality Report

Orbit 28543

Creation date: 2024-06-27T19:53:05.366371
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/AS1A10_058T09_9000004100_28543cztM0_level2.evt modeM0/AS1A10_058T09_9000004100_28543cztM0_level2_quad_clean.evt
Size (bytes)213,888,96049,371,840
Size204.0 MB 47.1 MB
Events in quadrant A1,417,457340,110
Events in quadrant B1,340,183345,654
Events in quadrant C1,150,050327,267
Events in quadrant D2,409,197313,174

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057100
B054440
C048640
D088570

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2343933.969270%
B2344572.431741%
C234440.170648%
D23441516.441980%

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 2343 2343 64 64 2.73% 2.73%
B 2344 2344 44 44 1.88% 1.88%
C 2344 2344 0 0 0.00% 0.00%
D 2344 2344 172 172 7.34% 7.34%

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 15 174 274105 4477.36 296 291 61.2
A 13 254 4365 66.62 296 291 61.2
A 0 226 2581 37.45 296 291 61.2
B 10 245 122482 2154.65 291 286 56.7
B 4 80 44528 780.11 291 286 56.7
B 4 187 8445 143.87 291 286 56.7
C 14 238 47263 713.32 277 280 65.9
C 4 254 10170 150.16 277 280 65.9
C 3 233 7332 107.07 277 280 65.9
D 1 52 963205 14215.46 280 274 67.7
D 8 195 303188 4471.83 280 274 67.7
D 2 250 21689 316.14 280 274 67.7

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