ASTROSAT CZTI

Data Quality Report

Orbit 09417

Creation date: 2024-06-27T15:46:11.649114
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_063T01_9000001336_09417cztM0_level2.evt modeM0/AS1G07_063T01_9000001336_09417cztM0_level2_quad_clean.evt
Size (bytes)1,122,428,160139,135,680
Size1.0 GB 132.7 MB
Events in quadrant A8,640,088846,030
Events in quadrant B6,038,946892,363
Events in quadrant C10,260,670758,166
Events in quadrant D8,176,133820,055

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029636
B029628
C029630
D029622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0101

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0389954567
B0296722721
C05367714744
D0372773750

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129752061.587669%
B13301900.676641%
C12330193715.709651%
D131515043.832408%

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 15687 14056 48 48 0.31% 0.34%
B 15688 14180 0 0 0.00% 0.00%
C 15688 13357 1357 1357 8.65% 10.16%
D 15688 14147 356 356 2.27% 2.52%

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 2726046 8825.36 1499 1466 308.7
A 1 162 79275 252.04 1499 1466 308.7
A 1 178 25380 77.46 1499 1466 308.7
B 12 111 34873 111.9 1545 1505 298.2
B 11 111 28376 90.12 1545 1505 298.2
B 14 111 21247 66.21 1545 1505 298.2
C 4 254 5149537 17272.32 1288 1294 298.1
C 9 68 77568 255.9 1288 1294 298.1
C 13 61 9681 28.14 1288 1294 298.1
D 1 52 2027285 5442.61 1458 1424 372.2
D 13 122 458895 1229.03 1458 1424 372.2
D 8 195 61604 161.68 1458 1424 372.2

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