ASTROSAT CZTI

Data Quality Report

Orbit 43428

Creation date: 2024-06-27T22:51:51.644532
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_018T01_9000005874_43428cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43428cztM0_level2_quad_clean.evt
Size (bytes)1,355,276,160338,382,720
Size1.3 GB 322.7 MB
Events in quadrant A12,290,6082,274,050
Events in quadrant B10,876,2912,332,407
Events in quadrant C10,119,0742,208,885
Events in quadrant D15,258,5141,984,321

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04908411
B0466398
C04364715
D05973711

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04300
B04291
C04300
D04300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A209883491.662855%
B209922191.043255%
C20986460.219194%
D209888594.092815%

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 33544 20998 245 245 0.73% 1.17%
B 33545 20998 173 173 0.52% 0.82%
C 33545 20996 33 33 0.10% 0.16%
D 33545 20997 911 911 2.72% 4.34%

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 10 83 2287130 5049.62 2238 2193 452.5
A 15 237 1100426 2427.05 2238 2193 452.5
A 13 248 103388 223.64 2238 2193 452.5
B 0 189 543634 1288.47 2241 2180 420.2
B 0 245 453006 1072.81 2241 2180 420.2
B 5 255 288890 682.27 2241 2180 420.2
C 15 214 857162 1674.9 2203 2212 510.4
C 2 16 324652 631.68 2203 2212 510.4
C 3 233 291691 567.11 2203 2212 510.4
D 2 16 2337923 4442.82 2167 2101 525.8
D 1 52 1926448 3660.18 2167 2101 525.8
D 13 249 854398 1621.1 2167 2101 525.8

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