ASTROSAT CZTI

Data Quality Report

Orbit 44984

Creation date: 2024-06-27T23:08:47.990637
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/AS1A13_074T07_9000006036_44984cztM0_level2.fits modeM0/AS1A13_074T07_9000006036_44984cztM0_level2_quad_clean.evt
Size (bytes)291,332,16046,978,560
Size277.8 MB 44.8 MB
Events in quadrant A2,441,744338,687
Events in quadrant B1,585,273344,138
Events in quadrant C1,297,143330,466
Events in quadrant D5,224,010193,915

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A096921
B067231
C060781
D0176121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3017501.657275%
B3018381.259112%
C301810.033135%
D3018123340.854871%

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 3017 3017 10 10 0.33% 0.33%
B 3018 3018 24 24 0.80% 0.80%
C 3018 3018 0 0 0.00% 0.00%
D 3018 3018 1188 1188 39.36% 39.36%

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 1094334 15410.27 333 325 71.0
A 0 243 42036 587.54 333 325 71.0
A 0 227 9236 125.52 333 325 71.0
B 4 171 56950 837.35 335 325 67.6
B 5 255 36837 539.93 335 325 67.6
B 0 245 32286 472.63 335 325 67.6
C 1 3 2685 29.9 330 333 78.7
C 3 233 2330 25.39 330 333 78.7
C 13 61 2247 24.34 330 333 78.7
D 13 249 1648802 23523.36 269 259 70.1
D 11 241 1102701 15730.94 269 259 70.1
D 13 187 483543 6896.07 269 259 70.1

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