ASTROSAT CZTI

Data Quality Report

Orbit 33354

Creation date: 2024-06-27T20:47:48.853322
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/AS1A10_058T15_9000004786_33354cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33354cztM0_level2_quad_clean.evt
Size (bytes)411,192,00064,768,320
Size392.1 MB 61.8 MB
Events in quadrant A2,139,227437,271
Events in quadrant B2,997,669427,168
Events in quadrant C3,191,156407,942
Events in quadrant D3,826,930380,012

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107951659
B0147422957
C0149182795
D0186994439

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010812
B010814
C010814
D010812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A444660.134953%
B43971663.775301%
C43533207.351252%
D42572315.426357%

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 7047 4637 0 0 0.00% 0.00%
B 7043 4575 120 120 1.70% 2.62%
C 7029 4541 288 288 4.10% 6.34%
D 7029 4450 214 214 3.04% 4.81%

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 15 169 80229 753.1 527 519 105.8
A 15 174 6572 57.19 527 519 105.8
A 13 254 6410 55.66 527 519 105.8
B 5 172 414969 4206.93 514 502 98.5
B 0 245 264770 2682.38 514 502 98.5
B 0 219 189457 1917.93 514 502 98.5
C 1 23 912494 8254.9 478 482 110.5
C 15 214 183925 1660.4 478 482 110.5
C 0 10 120675 1087.9 478 482 110.5
D 8 195 779875 6324.87 474 465 123.2
D 1 52 322753 2615.35 474 465 123.2
D 14 52 220919 1788.97 474 465 123.2

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