ASTROSAT CZTI

Data Quality Report

Orbit 03411

Creation date: 2024-06-27T14:28:39.091835
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_210T01_9000000454_03411cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03411cztM0_level2_quad_clean.evt
Size (bytes)441,423,36082,215,360
Size421.0 MB 78.4 MB
Events in quadrant A3,202,317513,335
Events in quadrant B3,224,152517,718
Events in quadrant C3,428,723503,362
Events in quadrant D3,062,963493,484

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141143
B0140182
C0147872
D0139732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66241131.705918%
B6624871.313406%
C66241702.566425%
D6625791.192453%

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 7589 6625 5 5 0.07% 0.08%
B 7589 6625 0 0 0.00% 0.00%
C 7589 6625 63 63 0.83% 0.95%
D 7590 6626 8 8 0.11% 0.12%

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 14 249 95344 594.92 777 759 159.0
A 8 15 39960 246.57 777 759 159.0
A 0 31 34130 209.9 777 759 159.0
B 15 204 94033 608.95 784 763 153.2
B 14 167 23528 148.63 784 763 153.2
B 0 182 22933 144.75 784 763 153.2
C 7 220 332011 1876.28 752 755 176.5
C 1 192 108049 607.73 752 755 176.5
C 9 54 19298 105.03 752 755 176.5
D 9 85 52584 283.01 755 732 183.2
D 13 223 34754 185.69 755 732 183.2
D 3 247 31577 168.35 755 732 183.2

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