ASTROSAT CZTI

Data Quality Report

Orbit 04579

Creation date: 2024-06-27T14:44:02.668123
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/AS1G05_233T10_9000000570_04579cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04579cztM0_level2_quad_clean.evt
Size (bytes)486,921,60092,940,480
Size464.4 MB 88.6 MB
Events in quadrant A3,369,602586,652
Events in quadrant B3,900,233579,190
Events in quadrant C3,295,925574,664
Events in quadrant D3,675,675556,938

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01538970
B01652682
C01535363
D01634676

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01502
B01500
C01500
D01504

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74331231.654783%
B74281241.669359%
C7437710.954686%
D74351221.640888%

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 7671 7467 5 5 0.07% 0.07%
B 7671 7465 5 5 0.07% 0.07%
C 7671 7468 0 0 0.00% 0.00%
D 7671 7466 28 28 0.37% 0.38%

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 15 174 18240 98.45 859 838 176.8
A 13 210 14686 78.34 859 838 176.8
A 8 15 13861 73.67 859 838 176.8
B 14 167 319239 1906.52 859 836 167.0
B 15 204 132749 789.86 859 836 167.0
B 15 54 32540 189.84 859 836 167.0
C 5 250 22514 112.11 829 829 193.4
C 8 208 15772 77.26 829 829 193.4
C 7 247 7386 33.9 829 829 193.4
D 13 235 142919 706.4 830 804 201.2
D 2 136 115361 569.42 830 804 201.2
D 13 239 53531 262.09 830 804 201.2

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