ASTROSAT CZTI

Data Quality Report

Orbit 05400

Creation date: 2024-06-27T14:54:46.683288
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_214T01_9000000684_05400cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05400cztM0_level2_quad_clean.evt
Size (bytes)471,617,28065,298,240
Size449.8 MB 62.3 MB
Events in quadrant A2,953,502391,419
Events in quadrant B3,196,532399,289
Events in quadrant C2,843,038396,842
Events in quadrant D4,879,566367,143

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129592
B0135261
C0125581
D0186581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6048671.107804%
B6048721.190476%
C6048210.347222%
D60483255.373677%

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 7238 6049 41 41 0.57% 0.68%
B 7238 6049 29 29 0.40% 0.48%
C 7238 6049 10 10 0.14% 0.17%
D 7238 6049 351 351 4.85% 5.80%

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 131066 889.56 712 697 146.6
A 0 50 54450 366.78 712 697 146.6
A 13 6 16820 110.01 712 697 146.6
B 0 187 101388 721.73 729 712 139.5
B 15 204 81414 578.54 729 712 139.5
B 4 48 66638 472.61 729 712 139.5
C 9 247 49939 300.37 699 705 163.9
C 1 16 47339 284.51 699 705 163.9
C 14 67 14389 83.49 699 705 163.9
D 2 63 2062798 12243.22 680 658 168.4
D 2 33 61702 362.43 680 658 168.4
D 2 206 56818 333.43 680 658 168.4

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