ASTROSAT CZTI

Data Quality Report

Orbit 13896

Creation date: 2024-06-27T16:47:34.698201
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/AS1A04_010T02_9000002048_13896cztM0_level2.evt modeM0/AS1A04_010T02_9000002048_13896cztM0_level2_quad_clean.evt
Size (bytes)449,449,92089,631,360
Size428.6 MB 85.5 MB
Events in quadrant A3,100,377572,395
Events in quadrant B3,175,086584,616
Events in quadrant C3,169,472572,789
Events in quadrant D3,737,520543,745

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133723
B0134202
C0132292
D0152972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6318160.253245%
B6318480.759734%
C631880.126622%
D6318921.456157%

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 7619 6320 0 0 0.00% 0.00%
B 7619 6320 20 20 0.26% 0.32%
C 7619 6320 0 0 0.00% 0.00%
D 7619 6320 78 78 1.02% 1.23%

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 0 23 87321 551.76 777 761 156.9
A 1 162 13149 78.96 777 761 156.9
A 0 226 12291 73.5 777 761 156.9
B 4 80 78936 532.04 778 759 146.9
B 0 214 18170 118.49 778 759 146.9
B 12 111 17539 114.2 778 759 146.9
C 3 233 206776 1174.83 758 763 175.4
C 13 61 5415 26.53 758 763 175.4
C 0 207 3418 15.14 758 763 175.4
D 1 52 637891 3606.3 742 726 176.7
D 13 189 77274 433.26 742 726 176.7
D 8 195 66753 373.71 742 726 176.7

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