ASTROSAT CZTI

Data Quality Report

Orbit 47567

Creation date: 2024-07-15T05:54:40.384207
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/AS1C09_002T01_9000006334_47567cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47567cztM0_level2_quad_clean.evt
Size (bytes)724,743,360116,409,600
Size691.2 MB 111.0 MB
Events in quadrant A8,056,427807,639
Events in quadrant B3,610,003826,874
Events in quadrant C3,266,236795,102
Events in quadrant D11,305,411564,371

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291110
B0160270
C0154510
D0388920

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76241812.374082%
B7625100.131148%
C762540.052459%
D7625211227.698361%

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 7624 7624 81 81 1.06% 1.06%
B 7625 7625 0 0 0.00% 0.00%
C 7625 7625 0 0 0.00% 0.00%
D 7625 7625 2301 2301 30.18% 30.18%

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 10 83 4040467 23815.16 819 802 169.6
A 9 191 777157 4576.87 819 802 169.6
A 13 248 54577 317.02 819 802 169.6
B 0 200 206041 1260.26 827 803 162.9
B 0 190 55253 334.35 827 803 162.9
B 0 198 28155 167.95 827 803 162.9
C 14 254 94501 490.26 811 812 191.1
C 3 233 9903 47.57 811 812 191.1
C 13 61 5544 24.76 811 812 191.1
D 2 165 7910803 43139.27 725 700 183.4
D 2 249 180962 983.09 725 700 183.4
D 11 192 116542 631.77 725 700 183.4

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