ASTROSAT CZTI

Data Quality Report

Orbit 10807

Creation date: 2024-06-27T16:04:39.881989
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/AS1G07_003T02_9000001564_10807cztM0_level2.evt modeM0/AS1G07_003T02_9000001564_10807cztM0_level2_quad_clean.evt
Size (bytes)568,195,20062,827,200
Size541.9 MB 59.9 MB
Events in quadrant A5,013,352360,769
Events in quadrant B4,790,953357,406
Events in quadrant C2,973,055371,201
Events in quadrant D3,984,918354,309

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192174
B0185201
C0134041
D0161561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65775918.985860%
B65784617.008209%
C6578310.471268%
D65781762.675585%

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 7558 6578 429 429 5.68% 6.52%
B 7558 6579 260 260 3.44% 3.95%
C 7558 6579 0 0 0.00% 0.00%
D 7558 6579 127 127 1.68% 1.93%

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 8 5 2119095 14040.53 741 724 150.9
A 4 2 24588 158.17 741 724 150.9
A 8 15 9219 56.3 741 724 150.9
B 4 239 1651209 11224.66 766 747 147.0
B 15 204 109684 740.87 766 747 147.0
B 0 85 30825 204.56 766 747 147.0
C 13 61 5605 27.36 761 765 176.9
C 8 222 4099 18.85 761 765 176.9
C 14 234 1830 6.02 761 765 176.9
D 1 52 307399 1721.73 747 728 178.1
D 13 138 223964 1253.31 747 728 178.1
D 8 195 133501 745.42 747 728 178.1

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