ASTROSAT CZTI

Data Quality Report

Orbit 28393

Creation date: 2024-06-27T19:51:16.401041
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_045T05_9000004086_28393cztM0_level2.evt modeM0/AS1A10_045T05_9000004086_28393cztM0_level2_quad_clean.evt
Size (bytes)978,171,840153,025,920
Size932.9 MB 145.9 MB
Events in quadrant A5,754,913956,420
Events in quadrant B5,969,593983,620
Events in quadrant C5,979,581942,494
Events in quadrant D11,085,596898,158

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250540
B0254540
C0258880
D0414160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A123491160.939347%
B123491521.230869%
C123501741.408907%
D123508757.085020%

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 13439 12350 0 0 0.00% 0.00%
B 13439 12349 14 14 0.10% 0.11%
C 13440 12351 0 0 0.00% 0.00%
D 13440 12351 693 693 5.16% 5.61%

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 13 254 18701 57.16 1485 1449 301.8
A 3 137 15129 45.33 1485 1449 301.8
A 0 226 12749 37.44 1485 1449 301.8
B 10 245 96998 334.4 1471 1428 285.8
B 0 230 46420 157.43 1471 1428 285.8
B 12 111 36380 122.3 1471 1428 285.8
C 14 238 227169 672.59 1423 1428 335.6
C 3 233 149721 441.84 1423 1428 335.6
C 4 224 39199 112.54 1423 1428 335.6
D 8 195 2843635 8347.73 1406 1366 340.5
D 1 52 2716619 7974.69 1406 1366 340.5
D 13 168 105384 305.5 1406 1366 340.5

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