ASTROSAT CZTI

Data Quality Report

Orbit 47996

Creation date: 2024-08-13T03:26:29.267259
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_062T02_9000006384_47996cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47996cztM0_level2_quad_clean.evt
Size (bytes)465,226,560109,486,080
Size443.7 MB 104.4 MB
Events in quadrant A7,137,815699,337
Events in quadrant B3,108,538768,612
Events in quadrant C3,265,623731,699
Events in quadrant D3,208,853665,572

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254982
B0135892
C0140852
D0141554

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64454727.323507%
B6445911.411947%
C6445741.148177%
D64441362.110490%

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 7585 6446 114 114 1.50% 1.77%
B 7585 6446 0 0 0.00% 0.00%
C 7585 6446 23 23 0.30% 0.36%
D 7584 6445 88 88 1.16% 1.37%

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 4108679 26652.03 741 724 154.1
A 14 248 95353 613.94 741 724 154.1
A 7 3 65399 419.61 741 724 154.1
B 0 197 53813 358.18 755 734 148.2
B 7 221 22129 144.37 755 734 148.2
B 0 198 19022 123.41 755 734 148.2
C 14 254 129900 736.66 743 747 175.3
C 1 3 121247 687.31 743 747 175.3
C 12 2 54463 306.39 743 747 175.3
D 5 222 111368 602.61 739 716 183.6
D 2 249 90639 489.72 739 716 183.6
D 11 224 75476 407.14 739 716 183.6

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