ASTROSAT CZTI

Data Quality Report

Orbit 05023

Creation date: 2024-06-27T14:50:18.039595
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_250T02_9000000638_05023cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05023cztM0_level2_quad_clean.evt
Size (bytes)504,936,00069,382,080
Size481.5 MB 66.2 MB
Events in quadrant A3,521,563418,138
Events in quadrant B3,445,473422,408
Events in quadrant C3,513,693420,157
Events in quadrant D4,373,960390,287

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149273
B0141332
C0141692
D0171512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64471512.342175%
B64471442.233597%
C6447931.442531%
D64472954.575772%

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 7692 6448 21 21 0.27% 0.33%
B 7692 6448 22 22 0.29% 0.34%
C 7692 6448 1 1 0.01% 0.02%
D 7692 6448 112 112 1.46% 1.74%

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 14 111 282667 1732.6 803 786 162.7
A 0 50 94392 575.36 803 786 162.7
A 4 2 45805 276.71 803 786 162.7
B 15 204 206958 1352.8 804 786 152.4
B 0 219 109190 711.29 804 786 152.4
B 15 54 16642 104.04 804 786 152.4
C 1 16 480850 2698.34 772 777 177.9
C 8 128 7387 37.15 772 777 177.9
C 13 61 6407 31.64 772 777 177.9
D 13 235 489813 2631.79 766 743 185.8
D 12 227 283325 1520.63 766 743 185.8
D 2 136 146560 784.67 766 743 185.8

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