ASTROSAT CZTI

Data Quality Report

Orbit 30546

Creation date: 2024-06-27T20:16:46.401438
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/AS1A10_053T20_9000004398_30546cztM0_level2.evt modeM0/AS1A10_053T20_9000004398_30546cztM0_level2_quad_clean.evt
Size (bytes)401,140,80056,327,040
Size382.6 MB 53.7 MB
Events in quadrant A2,246,339361,093
Events in quadrant B3,606,677357,538
Events in quadrant C2,353,029343,968
Events in quadrant D3,635,374325,075

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094221
B0138391
C096641
D0135931

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4511661.463090%
B45111403.103525%
C45111483.280869%
D451149010.862337%

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 4891 4512 0 0 0.00% 0.00%
B 4891 4512 6 6 0.12% 0.13%
C 4891 4512 18 18 0.37% 0.40%
D 4891 4512 341 341 6.97% 7.56%

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 8 192 18086 150.01 577 565 116.8
A 13 254 8268 65.95 577 565 116.8
A 3 137 5775 44.61 577 565 116.8
B 6 159 1287560 11726.98 565 551 109.7
B 6 36 41139 369.83 565 551 109.7
B 4 171 24411 217.41 565 551 109.7
C 0 10 105109 818.46 542 545 127.8
C 14 238 92606 720.6 542 545 127.8
C 3 233 21107 160.95 542 545 127.8
D 7 238 728323 5626.3 538 524 129.4
D 2 250 405474 3130.49 538 524 129.4
D 8 195 222033 1712.39 538 524 129.4

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