ASTROSAT CZTI

Data Quality Report

Orbit 41309

Creation date: 2024-06-27T22:27:18.616998
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/AS1T05_106T01_9000005642_41309cztM0_level2.fits modeM0/AS1T05_106T01_9000005642_41309cztM0_level2_quad_clean.evt
Size (bytes)633,983,040157,242,240
Size604.6 MB 150.0 MB
Events in quadrant A5,256,3031,073,983
Events in quadrant B4,349,9061,104,603
Events in quadrant C5,252,3281,023,758
Events in quadrant D7,834,353866,731

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217402
B0201322
C0221952
D0304712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02040
B02040
C02040
D02040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9981150.150286%
B9981140.140267%
C99813133.135958%
D9981113011.321511%

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 12607 9983 6 6 0.05% 0.06%
B 12607 9983 1 1 0.01% 0.01%
C 12606 9982 298 298 2.36% 2.99%
D 12607 9983 1062 1062 8.42% 10.64%

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 836648 3809.13 1072 1050 219.4
A 12 189 135691 613.77 1072 1050 219.4
A 2 79 79860 359.26 1072 1050 219.4
B 0 245 52365 248.01 1070 1038 207.0
B 5 255 46041 217.45 1070 1038 207.0
B 0 229 34685 162.58 1070 1038 207.0
C 0 10 830301 3488.2 1027 1037 237.7
C 15 214 408316 1713.17 1027 1037 237.7
C 13 61 6884 24.59 1027 1037 237.7
D 2 120 1954134 8001.52 1000 970 244.1
D 2 249 890701 3644.96 1000 970 244.1
D 1 47 377565 1542.79 1000 970 244.1

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