ASTROSAT CZTI

Data Quality Report

Orbit 10546

Creation date: 2024-06-27T16:00:45.803665
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/AS1G07_079T01_9000001528_10546cztM0_level2.evt modeM0/AS1G07_079T01_9000001528_10546cztM0_level2_quad_clean.evt
Size (bytes)270,907,20034,194,240
Size258.4 MB 32.6 MB
Events in quadrant A1,618,262199,493
Events in quadrant B2,624,425181,134
Events in quadrant C1,534,706201,647
Events in quadrant D2,187,028204,132

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106803427
B0145344418
C0106153561
D0122393411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010835
B010836
C010833
D010332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A351270.199317%
B33793129.233501%
C350520.057061%
D3627170.468707%

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 3761 3713 0 0 0.00% 0.00%
B 3761 3614 196 196 5.21% 5.42%
C 3760 3721 1 1 0.03% 0.03%
D 3761 3719 9 9 0.24% 0.24%

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 15 239 42671 509.45 399 390 83.0
A 15 174 14292 167.51 399 390 83.0
A 14 254 11430 133.02 399 390 83.0
B 4 239 997949 13576.17 376 366 73.5
B 11 51 77968 1056.09 376 366 73.5
B 0 219 34509 464.65 376 366 73.5
C 1 3 3302 31.38 392 393 92.7
C 13 61 2929 27.36 392 393 92.7
C 14 234 2225 19.76 392 393 92.7
D 2 16 343973 3485.99 399 386 98.6
D 8 195 161865 1638.35 399 386 98.6
D 1 52 62276 627.93 399 386 98.6

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