ASTROSAT CZTI

Data Quality Report

Orbit 43762

Creation date: 2024-06-27T22:55:27.953092
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/AS1A13_026T01_9000005904_43762cztM0_level2.fits modeM0/AS1A13_026T01_9000005904_43762cztM0_level2_quad_clean.evt
Size (bytes)572,123,520112,593,600
Size545.6 MB 107.4 MB
Events in quadrant A5,334,892774,487
Events in quadrant B4,651,254816,386
Events in quadrant C4,329,490760,715
Events in quadrant D6,363,209608,578

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209642
B0180292
C0170142
D0232742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64403545.496894%
B64402303.571429%
C64403765.838509%
D6440119518.555901%

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 7615 6441 190 190 2.50% 2.95%
B 7615 6441 122 122 1.60% 1.89%
C 7615 6441 260 260 3.41% 4.04%
D 7615 6441 603 603 7.92% 9.36%

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 996266 6096.57 792 778 163.3
A 15 223 647735 3962.1 792 778 163.3
A 14 63 198761 1212.49 792 778 163.3
B 0 200 630785 4081.66 793 771 154.4
B 5 235 454420 2939.05 793 771 154.4
B 0 213 130607 841.17 793 771 154.4
C 15 158 1072785 5988.67 763 767 179.0
C 14 254 128841 715.47 763 767 179.0
C 15 174 46125 253.39 763 767 179.0
D 4 212 1216896 6538.49 726 703 186.0
D 12 2 480519 2579.59 726 703 186.0
D 5 235 279674 1499.8 726 703 186.0

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