ASTROSAT CZTI

Data Quality Report

Orbit 08541

Creation date: 2024-06-27T15:34:03.548172
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_060T01_9000001200_08541cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08541cztM0_level2_quad_clean.evt
Size (bytes)412,701,12074,793,600
Size393.6 MB 71.3 MB
Events in quadrant A3,175,943458,492
Events in quadrant B3,130,313465,748
Events in quadrant C2,869,845455,718
Events in quadrant D2,887,623438,925

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138053
B0134662
C0130462
D0133072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6390691.079812%
B6390630.985915%
C6390120.187793%
D6390150.234742%

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 7565 6391 28 28 0.37% 0.44%
B 7565 6391 16 16 0.21% 0.25%
C 7565 6391 0 0 0.00% 0.00%
D 7565 6391 6 6 0.08% 0.09%

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 15 223 173970 1132.27 755 740 153.0
A 15 239 72046 466.07 755 740 153.0
A 8 5 14457 89.66 755 740 153.0
B 10 16 77166 529.02 763 745 144.5
B 0 214 58571 400.3 763 745 144.5
B 12 111 16440 108.65 763 745 144.5
C 13 61 5662 28.84 734 739 170.7
C 8 222 4530 22.21 734 739 170.7
C 3 202 1816 6.31 734 739 170.7
D 14 34 80090 449.95 724 704 176.4
D 7 71 22255 122.15 724 704 176.4
D 2 234 20145 110.19 724 704 176.4

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