ASTROSAT CZTI

Data Quality Report

Orbit 43054

Creation date: 2024-06-27T22:47:24.496028
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/AS1T05_148T01_9000005838_43054cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43054cztM0_level2_quad_clean.evt
Size (bytes)324,982,08046,607,040
Size309.9 MB 44.4 MB
Events in quadrant A1,804,057420,228
Events in quadrant B4,251,193211,402
Events in quadrant C1,441,153403,122
Events in quadrant D4,342,730201,818

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072661
B0143491
C058221
D0146121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2436441.806240%
B2436135155.459770%
C243650.205255%
D2436121749.958949%

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 2436 2436 21 21 0.86% 0.86%
B 2436 2436 1113 1113 45.69% 45.69%
C 2436 2436 7 7 0.29% 0.29%
D 2436 2436 1133 1133 46.51% 46.51%

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 301334 3974.77 329 323 75.7
A 15 237 136807 1802.23 329 323 75.7
A 12 189 51694 678.33 329 323 75.7
B 0 186 2897756 51299.11 258 252 56.5
B 0 229 153052 2705.26 258 252 56.5
B 4 171 130203 2300.73 258 252 56.5
C 15 214 108814 1329.51 312 314 81.6
C 15 111 83822 1023.27 312 314 81.6
C 14 254 21246 256.49 312 314 81.6
D 1 52 1538337 22123.75 253 245 69.5
D 2 16 1314951 18910.59 253 245 69.5
D 10 118 272230 3912.2 253 245 69.5

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