ASTROSAT CZTI

Data Quality Report

Orbit 33598

Creation date: 2024-06-27T20:50:36.968814
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/AS1A11_060T01_9000004808_33598cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33598cztM0_level2_quad_clean.evt
Size (bytes)485,475,84066,286,080
Size463.0 MB 63.2 MB
Events in quadrant A2,770,100425,969
Events in quadrant B4,691,610416,765
Events in quadrant C3,271,354416,374
Events in quadrant D3,624,605390,882

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112823
B0173342
C0129312
D0144362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5094150.294464%
B50944538.892815%
C50941052.061249%
D50941172.296820%

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 7246 5095 11 11 0.15% 0.22%
B 7246 5095 345 345 4.76% 6.77%
C 7246 5095 103 103 1.42% 2.02%
D 7246 5095 133 133 1.84% 2.61%

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 15 169 323506 2592.8 632 622 124.5
A 13 254 8095 60.01 632 622 124.5
A 10 83 6572 47.78 632 622 124.5
B 5 172 1008596 8569.6 620 606 117.6
B 15 222 928963 7892.59 620 606 117.6
B 4 251 138925 1175.94 620 606 117.6
C 3 233 254527 1783.87 622 629 142.3
C 0 10 244516 1713.53 622 629 142.3
C 15 214 220284 1543.28 622 629 142.3
D 8 195 490427 3321.47 612 597 147.5
D 13 249 251243 1699.59 612 597 147.5
D 1 52 207907 1405.74 612 597 147.5

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