ASTROSAT CZTI

Data Quality Report

Orbit 38062

Creation date: 2024-06-27T21:47:58.977442
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_047T09_9000005362_38062cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38062cztM0_level2_quad_clean.evt
Size (bytes)222,180,48040,199,040
Size211.9 MB 38.3 MB
Events in quadrant A1,379,236286,928
Events in quadrant B1,219,434289,444
Events in quadrant C1,722,167272,651
Events in quadrant D3,710,464191,286

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054922
B051421
C068581
D0127261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A245980.325336%
B2459160.650671%
C2459371.504677%
D245975830.825539%

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 3772 2460 4 4 0.11% 0.16%
B 3772 2460 12 12 0.32% 0.49%
C 3772 2460 29 29 0.77% 1.18%
D 3772 2460 726 726 19.25% 29.51%

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 170573 2810.4 289 284 60.6
A 7 16 38626 632.79 289 284 60.6
A 15 222 23712 386.65 289 284 60.6
B 5 184 38042 649.12 289 281 58.2
B 5 172 10140 169.48 289 281 58.2
B 12 111 7039 116.17 289 281 58.2
C 3 233 333408 4914.47 279 280 67.8
C 1 23 193997 2857.81 279 280 67.8
C 15 214 102829 1512.85 279 280 67.8
D 12 227 2527847 40583.57 246 238 62.3
D 13 249 86919 1391.76 246 238 62.3
D 2 250 29204 465.08 246 238 62.3

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