ASTROSAT CZTI

Data Quality Report

Orbit 38093

Creation date: 2024-06-27T21:48:17.218102
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_38093cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38093cztM0_level2_quad_clean.evt
Size (bytes)319,155,84072,889,920
Size304.4 MB 69.5 MB
Events in quadrant A2,494,578502,362
Events in quadrant B3,051,383471,894
Events in quadrant C2,711,754475,473
Events in quadrant D3,211,165445,919

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0996223
B0118703
C01065215
D01245942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4423360.813927%
B44353998.996618%
C44291413.183563%
D44211282.895273%

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 4437 4431 19 19 0.43% 0.43%
B 4437 4437 337 337 7.60% 7.60%
C 4437 4434 120 120 2.70% 2.71%
D 4437 4433 129 129 2.91% 2.91%

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 264625 2509.15 512 501 105.3
A 12 16 145176 1374.4 512 501 105.3
A 9 143 42978 403.53 512 501 105.3
B 5 172 964937 10011.18 488 475 96.3
B 0 229 73131 754.17 488 475 96.3
B 0 189 39178 401.74 488 475 96.3
C 1 23 503837 4266.48 495 499 118.0
C 15 214 182271 1540.76 495 499 118.0
C 5 250 52563 441.31 495 499 118.0
D 1 52 529026 4353.5 494 480 121.4
D 2 250 291228 2394.82 494 480 121.4
D 12 227 96257 788.89 494 480 121.4

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