ASTROSAT CZTI

Data Quality Report

Orbit 47532

Creation date: 2024-07-12T20:31:17.542960
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/AS1C09_002T01_9000006334_47532cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47532cztM0_level2_quad_clean.evt
Size (bytes)477,541,440112,285,440
Size455.4 MB 107.1 MB
Events in quadrant A6,856,965754,494
Events in quadrant B3,344,269772,898
Events in quadrant C2,894,342750,417
Events in quadrant D4,086,397676,833

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248211
B0140031
C0131121
D0165461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63812794.372355%
B63822173.400188%
C6382751.175180%
D63822694.214980%

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 7571 6381 40 40 0.53% 0.63%
B 7572 6382 101 101 1.33% 1.58%
C 7572 6382 4 4 0.05% 0.06%
D 7572 6382 161 161 2.13% 2.52%

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 3818721 24853.95 748 734 153.6
A 9 191 130963 847.75 748 734 153.6
A 13 248 12124 74.15 748 734 153.6
B 5 172 273876 1939.65 741 721 140.8
B 0 200 50419 352.9 741 721 140.8
B 0 198 33299 231.33 741 721 140.8
C 12 2 19355 109.13 731 735 170.6
C 1 3 11267 61.73 731 735 170.6
C 15 208 6446 33.47 731 735 170.6
D 2 249 611274 3400.58 730 706 179.5
D 2 165 224424 1246.0 730 706 179.5
D 7 96 129792 718.95 730 706 179.5

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