ASTROSAT CZTI

Data Quality Report

Orbit 10560

Creation date: 2024-06-27T16:00:49.596297
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_004T01_9000001532_10560cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10560cztM0_level2_quad_clean.evt
Size (bytes)1,427,469,120213,652,800
Size1.3 GB 203.8 MB
Events in quadrant A8,456,4421,307,089
Events in quadrant B11,710,8021,304,636
Events in quadrant C8,165,5041,340,843
Events in quadrant D13,659,7491,254,311

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0375955
B0469334
C0373184
D0522554

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183372481.352457%
B1833711046.020614%
C183371951.063424%
D1833714367.831161%

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 20657 18341 1 1 0.00% 0.01%
B 20657 18341 541 541 2.62% 2.95%
C 20657 18341 1 1 0.00% 0.01%
D 20657 18341 1173 1173 5.68% 6.40%

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 1 162 95328 214.39 2135 2089 434.9
A 13 251 54993 121.65 2135 2089 434.9
A 14 254 32270 69.4 2135 2089 434.9
B 4 239 3043983 7592.76 2107 2053 400.6
B 11 51 164798 406.22 2107 2053 400.6
B 0 214 113627 278.49 2107 2053 400.6
C 14 234 18292 33.54 2086 2094 482.9
C 13 61 15530 27.82 2086 2094 482.9
C 4 175 12332 21.2 2086 2094 482.9
D 1 52 3672428 7589.01 2016 1960 483.7
D 8 195 1130914 2334.21 2016 1960 483.7
D 2 16 740960 1527.95 2016 1960 483.7

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