ASTROSAT CZTI

Data Quality Report

Orbit 17106

Creation date: 2024-06-27T17:32:11.075670
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/AS1A05_004T03_9000002538_17106cztM0_level2.evt modeM0/AS1A05_004T03_9000002538_17106cztM0_level2_quad_clean.evt
Size (bytes)478,632,96095,362,560
Size456.5 MB 90.9 MB
Events in quadrant A3,077,058626,000
Events in quadrant B3,230,462634,468
Events in quadrant C3,440,974605,355
Events in quadrant D4,311,417574,548

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134452
B0137982
C0142542
D0171572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6418440.685572%
B6417500.779180%
C6417590.919433%
D64172483.864734%

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 7598 6419 0 0 0.00% 0.00%
B 7597 6418 6 6 0.08% 0.09%
C 7597 6418 0 0 0.00% 0.00%
D 7597 6418 200 200 2.63% 3.12%

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 4 2 42504 262.62 787 771 158.9
A 0 226 7028 39.37 787 771 158.9
A 12 194 5813 31.73 787 771 158.9
B 0 197 55158 367.67 790 771 147.9
B 0 189 39247 260.1 790 771 147.9
B 4 142 16905 109.07 790 771 147.9
C 3 233 313832 1768.58 763 770 177.0
C 14 238 117293 658.27 763 770 177.0
C 9 54 25573 140.12 763 770 177.0
D 5 222 1078632 5903.4 760 740 182.6
D 12 110 115621 629.18 760 740 182.6
D 7 38 81484 442.22 760 740 182.6

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