ASTROSAT CZTI

Data Quality Report

Orbit 44917

Creation date: 2024-06-27T23:07:57.810899
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_017T02_9000006032_44917cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44917cztM0_level2_quad_clean.evt
Size (bytes)1,614,070,080311,555,520
Size1.5 GB 297.1 MB
Events in quadrant A16,059,6572,120,414
Events in quadrant B10,269,1112,180,440
Events in quadrant C9,331,7492,153,848
Events in quadrant D22,545,4091,602,399

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04020
B04020
C04020
D04020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0631371
B0444831
C0421921
D0808473

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A199635872.940440%
B199644692.349229%
C19963930.465862%
D19962392219.647330%

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 20358 19964 95 95 0.47% 0.48%
B 20359 19965 58 58 0.28% 0.29%
C 20358 19964 18 18 0.09% 0.09%
D 20358 19964 2776 2776 13.64% 13.91%

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 6379007 13125.94 2312 2261 485.8
A 13 248 370136 757.24 2312 2261 485.8
A 0 247 285558 583.14 2312 2261 485.8
B 0 155 157833 338.61 2317 2243 459.5
B 5 255 128830 275.49 2317 2243 459.5
B 5 172 114434 244.16 2317 2243 459.5
C 12 250 104604 190.47 2288 2300 537.1
C 14 254 80993 146.51 2288 2300 537.1
C 1 3 62059 111.26 2288 2300 537.1
D 1 52 6151648 11473.73 2099 2033 536.0
D 4 232 1660360 3094.04 2099 2033 536.0
D 13 249 1549278 2886.79 2099 2033 536.0

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