ASTROSAT CZTI

Data Quality Report

Orbit 47224

Creation date: 2024-06-27T23:33:05.566619
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/AS1C09_005T01_9000006304_47224cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47224cztM0_level2_quad_clean.evt
Size (bytes)501,955,200105,675,840
Size478.7 MB 100.8 MB
Events in quadrant A8,558,344651,013
Events in quadrant B3,446,660729,604
Events in quadrant C2,852,488707,369
Events in quadrant D3,203,795644,884

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0301565
B0147702
C0135352
D0145222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A669189313.346286%
B66911662.480945%
C6692330.493126%
D6692981.464435%

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 8480 6691 500 500 5.90% 7.47%
B 8480 6690 62 62 0.73% 0.93%
C 8481 6691 0 0 0.00% 0.00%
D 8481 6691 50 50 0.59% 0.75%

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 10 83 3694174 24961.97 715 699 148.0
A 9 191 2038961 13775.38 715 699 148.0
A 7 3 35244 233.47 715 699 148.0
B 15 201 248388 1706.23 739 716 145.2
B 0 200 80708 551.07 739 716 145.2
B 0 183 66747 454.89 739 716 145.2
C 14 254 10106 54.7 726 728 171.4
C 3 233 9376 50.45 726 728 171.4
C 13 61 4984 24.83 726 728 171.4
D 1 47 137182 762.26 721 698 179.1
D 2 249 100150 555.44 721 698 179.1
D 12 233 48849 268.92 721 698 179.1

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