ASTROSAT CZTI

Data Quality Report

Orbit 39333

Creation date: 2024-06-27T22:03:20.998638
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/AS1A12_061T07_9000005468_39333cztM0_level2.fits modeM0/AS1A12_061T07_9000005468_39333cztM0_level2_quad_clean.evt
Size (bytes)395,035,20094,199,040
Size376.7 MB 89.8 MB
Events in quadrant A3,030,347637,022
Events in quadrant B2,509,357662,192
Events in quadrant C2,751,353636,318
Events in quadrant D5,918,139543,935

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121023
B0108732
C0111602
D0213262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5323410.770242%
B5323140.263010%
C532370.131505%
D53235089.543491%

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 9510 5325 26 26 0.27% 0.49%
B 9510 5325 4 4 0.04% 0.08%
C 9510 5325 2 2 0.02% 0.04%
D 9510 5325 547 547 5.75% 10.27%

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 421300 3377.51 619 609 124.6
A 13 248 176432 1411.59 619 609 124.6
A 2 247 37346 294.94 619 609 124.6
B 5 172 61166 510.6 618 600 118.6
B 12 111 15024 121.6 618 600 118.6
B 11 111 13649 110.01 618 600 118.6
C 15 214 245234 1725.94 609 614 141.7
C 9 187 84303 590.47 609 614 141.7
C 12 249 16958 115.32 609 614 141.7
D 12 235 2314226 16158.16 587 573 143.2
D 12 227 684160 4774.06 587 573 143.2
D 2 249 265400 1849.51 587 573 143.2

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