ASTROSAT CZTI

Data Quality Report

Orbit 48413

Creation date: 2024-09-10T09:24:52.911427
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_029T01_9000006426_48413cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48413cztM0_level2_quad_clean.evt
Size (bytes)1,285,824,960261,025,920
Size1.2 GB 248.9 MB
Events in quadrant A17,802,7211,732,671
Events in quadrant B12,953,9811,599,675
Events in quadrant C7,712,5911,765,806
Events in quadrant D7,783,6411,605,834

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0644883
B0511313
C0362593
D0365573

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03540
B03540
C03540
D03540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A173866183.554584%
B17387218512.566860%
C17387850.488871%
D17387940.540634%

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 19571 17389 217 217 1.11% 1.25%
B 19572 17390 1449 1449 7.40% 8.33%
C 19572 17390 37 37 0.19% 0.21%
D 19572 17390 52 52 0.27% 0.30%

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 10090141 26473.36 1841 1804 381.1
A 13 248 505094 1320.71 1841 1804 381.1
A 15 192 66633 170.12 1841 1804 381.1
B 12 16 5922640 17315.64 1742 1689 341.9
B 8 234 54774 155.24 1742 1689 341.9
B 12 111 43999 123.73 1742 1689 341.9
C 15 208 407304 933.87 1835 1845 434.2
C 12 2 112060 253.85 1835 1845 434.2
C 1 16 24720 52.69 1835 1845 434.2
D 2 249 131038 282.44 1826 1774 457.7
D 5 32 121209 260.96 1826 1774 457.7
D 2 120 85745 183.47 1826 1774 457.7

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