ASTROSAT CZTI

Data Quality Report

Orbit 29514

Creation date: 2024-06-27T20:04:52.672894
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_048T05_9000004250_29514cztM0_level2.evt modeM0/AS1A10_048T05_9000004250_29514cztM0_level2_quad_clean.evt
Size (bytes)784,679,040104,610,240
Size748.3 MB 99.8 MB
Events in quadrant A3,456,574697,513
Events in quadrant B3,532,273724,024
Events in quadrant C3,796,904694,241
Events in quadrant D12,542,818601,468

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140242
B0142612
C0151772
D0416422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6458490.758749%
B6458761.176835%
C64581081.672344%
D6458270841.932487%

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 7784 6459 0 0 0.00% 0.00%
B 7784 6459 8 8 0.10% 0.12%
C 7784 6459 4 4 0.05% 0.06%
D 7784 6458 3112 3112 39.98% 48.19%

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 0 13 15535 82.75 889 875 177.2
A 11 29 12312 64.55 889 875 177.2
A 13 254 11670 60.93 889 875 177.2
B 5 172 22411 129.14 888 866 166.8
B 12 111 19516 111.79 888 866 166.8
B 11 111 17374 98.95 888 866 166.8
C 7 247 200980 994.77 867 877 201.2
C 14 238 140538 694.29 867 877 201.2
C 3 233 63203 309.84 867 877 201.2
D 8 195 7659232 44221.41 736 720 173.2
D 12 33 1522725 8788.29 736 720 173.2
D 7 238 362713 2090.2 736 720 173.2

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