ASTROSAT CZTI

Data Quality Report

Orbit 20230712_A12_044T22_9000005750_level2

Creation date: 2023-07-14T11:29:56.717050
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/AS1A12_044T22_9000005750cztM0_level2.fits modeM0/AS1A12_044T22_9000005750cztM0_level2_quad_clean.evt
Size (bytes)719,988,480757,333,440
Size686.6 MB 722.2 MB
Events in quadrant A4,143,2624,364,578
Events in quadrant B4,181,7544,658,338
Events in quadrant C4,292,5324,426,017
Events in quadrant D3,593,0883,897,884

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02833090
B01689640
C01657170
D02272870

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02870
B02850
C02860
D02850

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016660
B016680
C016680
D016660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8150365968.092954%
B815244970.609636%
C815381310.160661%
D8150354806.723679%

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 109585 81511 0 0 0.00% 0.00%
B 109585 81543 0 0 0.00% 0.00%
C 109585 81561 0 0 0.00% 0.00%
D 109585 81323 0 0 0.00% 0.00%

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 7 110 3477 9.15 1079 1005 270.2
A 9 19 3327 8.59 1079 1005 270.2
A 0 29 3250 8.31 1079 1005 270.2
B 2 9 3651 12.16 1102 1048 214.0
B 3 80 3083 9.51 1102 1048 214.0
B 3 17 2961 8.94 1102 1048 214.0
C 1 81 3528 8.54 1132 1057 289.2
C 1 80 3339 7.89 1132 1057 289.2
C 3 202 3297 7.75 1132 1057 289.2
D 7 3 2649 6.27 1027 934 273.4
D 4 160 2646 6.26 1027 934 273.4
D 10 189 2583 6.03 1027 934 273.4

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