ASTROSAT CZTI

Data Quality Report

Orbit 42614

Creation date: 2024-06-27T22:42:14.230674
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/AS1A05_174T01_9000005820_42614cztM0_level2.fits modeM0/AS1A05_174T01_9000005820_42614cztM0_level2_quad_clean.evt
Size (bytes)192,899,52054,457,920
Size184.0 MB 51.9 MB
Events in quadrant A1,773,610360,150
Events in quadrant B1,501,130373,032
Events in quadrant C1,665,953357,250
Events in quadrant D1,943,215326,067

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072161
B066461
C068921
D080591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A327370.213871%
B327360.183318%
C3273110.336083%
D3273511.558203%

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 4887 3274 0 0 0.00% 0.00%
B 4887 3274 1 1 0.02% 0.03%
C 4887 3274 6 6 0.12% 0.18%
D 4887 3274 31 31 0.63% 0.95%

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 317732 4062.41 373 365 78.1
A 13 248 5928 71.21 373 365 78.1
A 3 137 4135 48.26 373 365 78.1
B 0 245 24915 335.6 369 359 73.2
B 12 111 9234 121.29 369 359 73.2
B 11 111 8542 111.84 369 359 73.2
C 15 214 134979 1549.32 367 369 86.9
C 15 111 43358 494.79 367 369 86.9
C 14 254 33823 385.05 367 369 86.9
D 2 16 144256 1603.61 366 355 89.7
D 1 52 110279 1224.97 366 355 89.7
D 1 47 71150 788.93 366 355 89.7

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