ASTROSAT CZTI

Data Quality Report

Orbit 09586

Creation date: 2024-06-27T15:48:04.052929
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/AS1G05_238T01_9000001364_09586cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09586cztM0_level2_quad_clean.evt
Size (bytes)403,015,68046,584,000
Size384.3 MB 44.4 MB
Events in quadrant A2,493,351290,078
Events in quadrant B2,186,890295,343
Events in quadrant C1,992,598291,429
Events in quadrant D5,245,273236,295

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115431330
B0104131138
C098691045
D0216703368

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0988
B09810
C09810
D09717

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4234962.267359%
B4260681.596244%
C4305190.441347%
D4025120129.838509%

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 5138 4589 1 1 0.02% 0.02%
B 5134 4622 6 6 0.12% 0.13%
C 5137 4633 0 0 0.00% 0.00%
D 5140 4456 899 899 17.49% 20.18%

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 1 162 190011 1783.86 518 507 106.2
A 1 178 104881 982.51 518 507 106.2
A 1 161 96480 903.42 518 507 106.2
B 15 85 80735 791.36 522 508 101.4
B 0 214 22410 216.04 522 508 101.4
B 4 80 17325 165.88 522 508 101.4
C 13 61 3934 28.36 509 511 120.7
C 14 225 3571 25.35 509 511 120.7
C 8 222 2104 13.2 509 511 120.7
D 1 52 3486346 32562.13 434 423 107.1
D 8 195 77346 718.54 434 423 107.1
D 12 227 24104 221.21 434 423 107.1

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