ASTROSAT CZTI

Data Quality Report

Orbit 23363

Creation date: 2024-06-27T18:53:46.154491
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/AS1C05_002T04_9000003454_23363cztM0_level2.evt modeM0/AS1C05_002T04_9000003454_23363cztM0_level2_quad_clean.evt
Size (bytes)340,240,32052,450,560
Size324.5 MB 50.0 MB
Events in quadrant A2,166,593329,748
Events in quadrant B2,246,089332,687
Events in quadrant C3,085,809319,090
Events in quadrant D2,524,813315,504

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A114005007791194446
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089511
B091851
C0119491
D0101381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A412790.218076%
B4127130.314999%
C4127952.301914%
D4127601.453841%

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 4127 4127 0 0 0.00% 0.00%
B 4127 4127 1 1 0.02% 0.02%
C 4127 4127 12 12 0.29% 0.29%
D 4127 4127 33 33 0.80% 0.80%

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 13 254 6488 53.0 561 552 112.0
A 0 226 4978 39.52 561 552 112.0
A 12 194 4512 35.36 561 552 112.0
B 0 189 44471 425.31 552 540 103.3
B 0 190 27878 264.67 552 540 103.3
B 12 111 11377 104.92 552 540 103.3
C 0 239 877083 7103.21 539 544 123.4
C 14 238 88677 714.2 539 544 123.4
C 7 247 12209 94.53 539 544 123.4
D 1 52 277348 2057.74 551 536 134.5
D 6 112 64258 473.69 551 536 134.5
D 12 233 36173 264.92 551 536 134.5

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