ASTROSAT CZTI

Data Quality Report

Orbit 46343

Creation date: 2024-06-27T23:21:59.140255
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_070T05_9000006198_46343cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46343cztM0_level2_quad_clean.evt
Size (bytes)600,868,800105,030,720
Size573.0 MB 100.2 MB
Events in quadrant A8,485,045652,341
Events in quadrant B3,721,536780,274
Events in quadrant C3,363,427738,201
Events in quadrant D6,173,945561,404

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0297871
B0150271
C0140991
D0225501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6424122419.053549%
B64241943.019925%
C64241422.210461%
D6424124219.333748%

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 7544 6425 767 767 10.17% 11.94%
B 7544 6425 46 46 0.61% 0.72%
C 7544 6425 48 48 0.64% 0.75%
D 7544 6424 834 834 11.06% 12.98%

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 2997062 19890.89 728 713 150.6
A 15 223 2622967 17407.5 728 713 150.6
A 13 248 27336 176.73 728 713 150.6
B 3 112 367352 2441.09 766 742 150.2
B 5 172 162599 1077.73 766 742 150.2
B 15 201 86510 571.09 766 742 150.2
C 12 250 199031 1138.89 747 752 174.1
C 9 54 122278 698.03 747 752 174.1
C 12 2 90075 513.06 747 752 174.1
D 5 235 2366045 13937.4 681 660 169.7
D 13 249 618900 3642.81 681 660 169.7
D 1 52 202170 1187.34 681 660 169.7

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