ASTROSAT CZTI

Data Quality Report

Orbit 37298

Creation date: 2024-06-27T21:38:04.295988
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_103T07_9000005302_37298cztM0_level2.evt modeM0/AS1A10_103T07_9000005302_37298cztM0_level2_quad_clean.evt
Size (bytes)392,434,56070,122,240
Size374.3 MB 66.9 MB
Events in quadrant A2,823,701431,391
Events in quadrant B2,791,786439,779
Events in quadrant C2,891,766438,780
Events in quadrant D2,990,590415,427

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121733
B0122392
C0120972
D0129902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5687260.457183%
B5687340.597855%
C5687350.615439%
D5687651.142958%

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 7270 5688 14 14 0.19% 0.25%
B 7270 5688 10 10 0.14% 0.18%
C 7270 5688 26 26 0.36% 0.46%
D 7270 5688 58 58 0.80% 1.02%

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 272759 2121.62 633 620 128.3
A 13 248 38474 295.11 633 620 128.3
A 15 223 20055 151.52 633 620 128.3
B 0 221 152931 1242.38 631 614 122.6
B 0 213 99894 809.78 631 614 122.6
B 4 232 31642 253.08 631 614 122.6
C 15 214 240215 1652.26 620 625 145.0
C 0 10 157565 1082.29 620 625 145.0
C 3 233 32393 219.08 620 625 145.0
D 2 153 287730 1907.11 615 597 150.6
D 10 199 121933 805.9 615 597 150.6
D 12 217 57562 378.35 615 597 150.6

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