ASTROSAT CZTI

Data Quality Report

Orbit 09879

Creation date: 2024-06-27T15:51:46.823244
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/AS1A03_117T06_9000001404_09879cztM0_level2.evt modeM0/AS1A03_117T06_9000001404_09879cztM0_level2_quad_clean.evt
Size (bytes)946,031,040153,924,480
Size902.2 MB 146.8 MB
Events in quadrant A5,975,043963,993
Events in quadrant B7,062,996968,009
Events in quadrant C7,862,749928,455
Events in quadrant D6,868,008901,259

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02666355
B02959953
C032354115
D02925073

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02684
B02680
C02682
D02680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130242351.804361%
B130275774.429262%
C130157555.800999%
D130223752.879742%

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 14585 13051 0 0 0.00% 0.00%
B 14585 13052 241 241 1.65% 1.85%
C 14585 13052 256 256 1.76% 1.96%
D 14585 13052 168 168 1.15% 1.29%

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 13 251 19132 55.75 1544 1509 316.1
A 0 226 13909 39.23 1544 1509 316.1
A 12 194 12220 33.89 1544 1509 316.1
B 4 81 1078868 3667.42 1525 1483 293.8
B 12 111 36079 117.76 1525 1483 293.8
B 11 111 30240 97.89 1525 1483 293.8
C 4 254 2072228 6096.36 1468 1473 339.7
C 14 234 31147 87.36 1468 1473 339.7
C 14 67 19506 53.09 1468 1473 339.7
D 1 52 746579 1944.76 1474 1442 383.2
D 2 16 358709 932.44 1474 1442 383.2
D 2 14 62623 159.68 1474 1442 383.2

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