ASTROSAT CZTI

Data Quality Report

Orbit 43361

Creation date: 2024-06-27T22:51:01.994434
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/AS1A09_143T01_9000005870_43361cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43361cztM0_level2_quad_clean.evt
Size (bytes)316,160,64083,986,560
Size301.5 MB 80.1 MB
Events in quadrant A3,079,768561,578
Events in quadrant B2,420,355583,051
Events in quadrant C2,403,626552,872
Events in quadrant D3,393,049480,371

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122811
B0108871
C0105141
D0140241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5213821.572991%
B5213150.287742%
C521420.038358%
D52143226.175681%

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 7097 5214 66 66 0.93% 1.27%
B 7097 5214 6 6 0.08% 0.12%
C 7098 5215 0 0 0.00% 0.00%
D 7098 5215 297 297 4.18% 5.70%

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 539178 4806.74 552 542 112.1
A 15 237 233979 2083.17 552 542 112.1
A 13 248 146856 1305.69 552 542 112.1
B 0 189 129969 1218.77 549 531 106.2
B 15 85 40176 373.29 549 531 106.2
B 0 186 33469 310.14 549 531 106.2
C 15 214 215268 1713.67 537 539 125.3
C 3 233 79613 631.06 537 539 125.3
C 7 220 7329 54.19 537 539 125.3
D 10 118 772375 6099.06 518 502 126.6
D 13 249 345417 2725.4 518 502 126.6
D 7 96 96399 757.74 518 502 126.6

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