ASTROSAT CZTI

Data Quality Report

Orbit 10950

Creation date: 2024-06-27T16:06:07.640384
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/AS1G08_037T01_9000001588_10950cztM0_level2.evt modeM0/AS1G08_037T01_9000001588_10950cztM0_level2_quad_clean.evt
Size (bytes)1,141,136,640152,130,240
Size1.1 GB 145.1 MB
Events in quadrant A10,970,218914,532
Events in quadrant B8,816,101943,354
Events in quadrant C5,865,217948,059
Events in quadrant D8,011,728883,190

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0417664
B0350093
C0269293
D0331803

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02700
B02700
C02700
D02700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132849206.925625%
B132847055.307136%
C13284370.278531%
D132845714.298404%

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 15004 13286 544 544 3.63% 4.09%
B 15004 13287 402 402 2.68% 3.03%
C 15004 13287 0 0 0.00% 0.00%
D 15004 13287 455 455 3.03% 3.42%

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 3528598 11449.66 1508 1476 308.1
A 8 15 1352541 4385.79 1508 1476 308.1
A 14 238 168987 543.77 1508 1476 308.1
B 4 239 2523512 8622.87 1530 1493 292.5
B 0 214 80783 271.1 1530 1493 292.5
B 3 189 78046 261.74 1530 1493 292.5
C 13 61 11061 27.57 1496 1507 346.5
C 8 128 10005 24.52 1496 1507 346.5
C 8 222 7310 16.75 1496 1507 346.5
D 1 52 1710871 4849.1 1461 1418 352.5
D 14 34 164898 463.73 1461 1418 352.5
D 13 61 103701 290.14 1461 1418 352.5

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