ASTROSAT CZTI

Data Quality Report

Orbit 09388

Creation date: 2024-06-27T15:45:21.569957
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/AS1A03_057T01_9000001330_09388cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09388cztM0_level2_quad_clean.evt
Size (bytes)218,655,36032,276,160
Size208.5 MB 30.8 MB
Events in quadrant A1,979,960185,523
Events in quadrant B1,480,720188,961
Events in quadrant C1,392,934187,866
Events in quadrant D1,543,412181,393

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081160
B067190
C065740
D070060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3286180.547778%
B328610.030432%
C328610.030432%
D3286130.395618%

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 3286 3286 10 10 0.30% 0.30%
B 3286 3286 0 0 0.00% 0.00%
C 3286 3286 0 0 0.00% 0.00%
D 3286 3286 9 9 0.27% 0.27%

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 8 5 316757 4207.87 359 352 75.2
A 1 162 109813 1455.72 359 352 75.2
A 1 178 45363 598.6 359 352 75.2
B 0 187 36935 516.41 361 352 70.8
B 0 214 18373 254.39 361 352 70.8
B 0 219 15409 212.55 361 352 70.8
C 8 128 6374 72.08 353 354 83.5
C 8 112 3458 37.16 353 354 83.5
C 13 61 2682 27.87 353 354 83.5
D 1 52 69944 778.19 351 340 89.4
D 8 195 42779 474.48 351 340 89.4
D 13 104 26270 289.9 351 340 89.4

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