ASTROSAT CZTI

Data Quality Report

Orbit 34304

Creation date: 2022-01-31T22:50:59.506491
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_047T07_9000004892_34304cztM0_level2.evt modeM0/AS1A11_047T07_9000004892_34304cztM0_level2_quad_clean.evt
Size (bytes)456,719,04054,694,080
Size435.6 MB 52.2 MB
Events in quadrant A2,832,408321,178
Events in quadrant B3,511,432321,139
Events in quadrant C3,125,049323,509
Events in quadrant D3,992,480307,740

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118523
B0140362
C0126162
D0155482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A545790.164926%
B5457981.795859%
C5457410.751329%
D54571713.133590%

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 7341 5458 2 2 0.03% 0.04%
B 7341 5458 59 59 0.80% 1.08%
C 7341 5458 22 22 0.30% 0.40%
D 7341 5458 114 114 1.55% 2.09%

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 7 16 44672 315.79 701 690 139.3
A 10 83 29965 210.19 701 690 139.3
A 13 6 17015 117.21 701 690 139.3
B 5 172 302518 2296.31 696 680 131.4
B 4 251 122089 923.65 696 680 131.4
B 0 190 77405 583.7 696 680 131.4
C 15 214 233252 1470.94 688 694 158.1
C 14 254 89559 562.08 688 694 158.1
C 0 10 87596 549.66 688 694 158.1
D 8 195 376630 2116.04 675 662 177.7
D 12 235 183077 1026.68 675 662 177.7
D 2 249 151374 848.25 675 662 177.7

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