ASTROSAT CZTI

Data Quality Report

Orbit 44990

Creation date: 2024-06-27T23:08:46.016067
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/AS1A13_044T02_9000006038_44990cztM0_level2.fits modeM0/AS1A13_044T02_9000006038_44990cztM0_level2_quad_clean.evt
Size (bytes)289,422,72049,112,640
Size276.0 MB 46.8 MB
Events in quadrant A3,496,955331,036
Events in quadrant B1,565,252340,649
Events in quadrant C1,501,855327,271
Events in quadrant D3,896,178257,139

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127160
B069960
C070370
D0138680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3246170.523722%
B3247170.523560%
C3247331.016323%
D324764519.864490%

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 3246 3246 6 6 0.18% 0.18%
B 3247 3247 13 13 0.40% 0.40%
C 3247 3247 37 37 1.14% 1.14%
D 3247 3247 606 606 18.66% 18.66%

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 1061229 15031.94 328 320 70.6
A 0 247 1060306 15018.87 328 320 70.6
A 0 226 66213 933.63 328 320 70.6
B 5 255 101475 1497.04 334 324 67.6
B 0 155 51647 759.58 334 324 67.6
B 5 172 34084 499.65 334 324 67.6
C 15 208 138718 1781.72 327 329 77.7
C 14 254 78609 1007.83 327 329 77.7
C 1 3 4361 51.91 327 329 77.7
D 13 249 2023627 25768.02 298 288 78.5
D 2 249 261386 3325.19 298 288 78.5
D 13 171 115655 1469.24 298 288 78.5

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