ASTROSAT CZTI

Data Quality Report

Orbit 34467

Creation date: 2024-06-27T21:00:49.874717
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/AS1A10_058T06_9000004920_34467cztM0_level2.evt modeM0/AS1A10_058T06_9000004920_34467cztM0_level2_quad_clean.evt
Size (bytes)429,569,28071,801,280
Size409.7 MB 68.5 MB
Events in quadrant A2,636,585470,934
Events in quadrant B2,752,570473,996
Events in quadrant C2,855,116457,058
Events in quadrant D4,435,695431,182

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107512
B0110491
C0113741
D0165991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4856420.864909%
B4856881.812191%
C4856300.617792%
D48561673.439044%

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 6979 4857 27 27 0.39% 0.56%
B 6979 4857 57 57 0.82% 1.17%
C 6979 4857 26 26 0.37% 0.54%
D 6978 4856 131 131 1.88% 2.70%

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 15 169 176531 1417.32 624 614 124.1
A 10 83 25205 198.12 624 614 124.1
A 13 6 20349 159.0 624 614 124.1
B 5 172 279439 2380.17 616 602 117.2
B 0 190 20698 171.54 616 602 117.2
B 0 229 17331 142.8 616 602 117.2
C 15 214 203495 1475.27 598 604 137.5
C 15 208 108995 788.14 598 604 137.5
C 14 67 91356 659.88 598 604 137.5
D 8 195 1198624 7731.18 586 575 155.0
D 7 223 209055 1345.35 586 575 155.0
D 1 52 173113 1113.41 586 575 155.0

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