ASTROSAT CZTI

Data Quality Report

Orbit 28069

Creation date: 2024-06-27T19:47:41.870416
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_057T02_9000004054_28069cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28069cztM0_level2_quad_clean.evt
Size (bytes)503,697,60046,157,760
Size480.4 MB 44.0 MB
Events in quadrant A2,089,949298,436
Events in quadrant B5,953,482263,722
Events in quadrant C2,598,067280,662
Events in quadrant D4,336,258266,266

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085980
B0204980
C0104310
D0157860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4083100.244918%
B4083151537.105070%
C4083551.347049%
D408352612.882684%

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 4083 4083 0 0 0.00% 0.00%
B 4083 4083 1153 1153 28.24% 28.24%
C 4083 4083 3 3 0.07% 0.07%
D 4083 4083 459 459 11.24% 11.24%

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 39164 367.8 528 519 105.1
A 13 254 7312 64.65 528 519 105.1
A 8 192 4723 40.01 528 519 105.1
B 10 245 4088537 48096.0 454 445 85.0
B 15 222 51560 601.36 454 445 85.0
B 0 156 10284 115.75 454 445 85.0
C 3 233 554035 4755.27 503 507 116.4
C 14 238 82840 707.31 503 507 116.4
C 13 61 3527 25.94 503 507 116.4
D 1 52 1467253 12474.56 491 479 117.6
D 8 195 454032 3857.36 491 479 117.6
D 2 250 325945 2768.01 491 479 117.6

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