ASTROSAT CZTI

Data Quality Report

Orbit 44981

Creation date: 2024-06-27T23:08:41.502047
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_044T01_9000006034_44981cztM0_level2.fits modeM0/AS1A13_044T01_9000006034_44981cztM0_level2_quad_clean.evt
Size (bytes)535,916,160112,717,440
Size511.1 MB 107.5 MB
Events in quadrant A5,572,414778,214
Events in quadrant B3,686,923807,659
Events in quadrant C3,102,557756,569
Events in quadrant D6,986,350629,174

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205902
B0150662
C0134292
D0253272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63202664.208861%
B63201682.658228%
C6320600.949367%
D632083313.180380%

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 7545 6321 13 13 0.17% 0.21%
B 7545 6321 41 41 0.54% 0.65%
C 7545 6321 10 10 0.13% 0.16%
D 7545 6321 615 615 8.15% 9.73%

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 2469972 15402.41 779 763 160.3
A 7 3 37978 232.14 779 763 160.3
A 13 248 21861 131.6 779 763 160.3
B 5 255 211266 1411.84 770 750 149.1
B 0 168 81712 542.98 770 750 149.1
B 0 155 67593 448.29 770 750 149.1
C 14 254 68547 390.21 750 755 173.7
C 15 208 40414 228.28 750 755 173.7
C 12 249 16687 91.71 750 755 173.7
D 13 187 1031618 5603.65 725 700 184.0
D 11 241 946121 5138.92 725 700 184.0
D 13 249 810249 4400.38 725 700 184.0

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