ASTROSAT CZTI

Data Quality Report

Orbit 14290

Creation date: 2024-06-27T16:53:01.218552
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_231T01_9000002106_14290cztM0_level2.evt modeM0/AS1A04_231T01_9000002106_14290cztM0_level2_quad_clean.evt
Size (bytes)557,087,04097,931,520
Size531.3 MB 93.4 MB
Events in quadrant A3,448,487640,640
Events in quadrant B3,925,864633,603
Events in quadrant C3,548,931625,704
Events in quadrant D5,490,289594,524

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146202
B0161181
C0147111
D0208991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6756520.769686%
B67561622.397869%
C6756140.207223%
D67564496.645944%

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 7042 6758 9 9 0.13% 0.13%
B 7042 6758 79 79 1.12% 1.17%
C 7042 6758 0 0 0.00% 0.00%
D 7042 6758 355 355 5.04% 5.25%

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 8 15 251939 1559.72 793 776 161.0
A 12 189 128910 795.71 793 776 161.0
A 15 69 8332 46.92 793 776 161.0
B 0 229 405080 2690.9 783 761 150.3
B 10 245 249055 1652.49 783 761 150.3
B 0 182 87560 577.68 783 761 150.3
C 3 233 578833 3317.55 759 764 174.2
C 13 61 5579 27.63 759 764 174.2
C 8 128 4309 20.34 759 764 174.2
D 13 122 1614644 9022.51 750 732 178.9
D 5 222 580650 3242.01 750 732 178.9
D 12 110 203132 1131.51 750 732 178.9

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