ASTROSAT CZTI

Data Quality Report

Orbit 41594

Creation date: 2024-06-27T22:30:31.498529
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/AS1C07_001T10_9000005678_41594cztM0_level2.fits modeM0/AS1C07_001T10_9000005678_41594cztM0_level2_quad_clean.evt
Size (bytes)322,879,68087,180,480
Size307.9 MB 83.1 MB
Events in quadrant A2,786,145582,813
Events in quadrant B2,590,165597,189
Events in quadrant C3,009,903562,870
Events in quadrant D3,143,888518,591

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117082
B0117302
C0125712
D0134462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5412110.203252%
B5412300.554324%
C54112043.770098%
D54112244.139715%

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 7055 5413 5 5 0.07% 0.09%
B 7055 5413 13 13 0.18% 0.24%
C 7054 5412 196 196 2.78% 3.62%
D 7054 5412 175 175 2.48% 3.23%

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 542681 4637.5 572 561 116.9
A 7 3 15933 131.5 572 561 116.9
A 13 254 9398 75.6 572 561 116.9
B 0 186 111556 1005.09 568 552 110.4
B 0 190 64214 576.43 568 552 110.4
B 5 255 51060 457.33 568 552 110.4
C 0 10 572753 4486.0 548 550 127.6
C 15 214 233982 1830.08 548 550 127.6
C 0 15 64793 503.65 548 550 127.6
D 13 249 326875 2426.19 548 530 134.5
D 1 47 196720 1458.56 548 530 134.5
D 12 233 193226 1432.59 548 530 134.5

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