ASTROSAT CZTI

Data Quality Report

Orbit 21059

Creation date: 2024-06-27T18:23:05.167932
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/AS1A05_101T03_9000003112_21059cztM0_level2.evt modeM0/AS1A05_101T03_9000003112_21059cztM0_level2_quad_clean.evt
Size (bytes)457,560,00095,405,760
Size436.4 MB 91.0 MB
Events in quadrant A3,079,405618,066
Events in quadrant B3,334,379644,263
Events in quadrant C3,136,428615,156
Events in quadrant D3,886,507579,440

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130542
B0136782
C0130772
D0156782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6185240.388036%
B6185671.083266%
C6185460.743735%
D61851171.891673%

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 7470 6186 0 0 0.00% 0.00%
B 7470 6186 16 16 0.21% 0.26%
C 7470 6186 0 0 0.00% 0.00%
D 7470 6186 92 92 1.23% 1.49%

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 8056 45.42 799 786 160.1
A 0 226 6976 38.68 799 786 160.1
A 3 137 6368 34.88 799 786 160.1
B 7 220 64419 422.46 808 791 150.6
B 0 219 55994 366.52 808 791 150.6
B 3 64 20365 129.96 808 791 150.6
C 14 238 124509 699.19 771 781 177.0
C 13 61 5371 25.94 771 781 177.0
C 3 9 2824 11.55 771 781 177.0
D 7 238 460516 2502.86 764 743 183.7
D 1 52 332626 1806.66 764 743 183.7
D 12 233 98917 534.43 764 743 183.7

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