ASTROSAT CZTI

Data Quality Report

Orbit 45924

Creation date: 2024-06-27T23:17:46.345324
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_071T03_9000006142_45924cztM0_level2.fits modeM0/AS1A13_071T03_9000006142_45924cztM0_level2_quad_clean.evt
Size (bytes)544,233,600115,522,560
Size519.0 MB 110.2 MB
Events in quadrant A6,035,619771,540
Events in quadrant B5,902,252780,936
Events in quadrant C3,037,214776,788
Events in quadrant D4,644,150694,484

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226761
B0223841
C0138611
D0184721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68001221.794118%
B68013645.352154%
C6801170.249963%
D68011742.558447%

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 7985 6801 16 16 0.20% 0.24%
B 7986 6801 165 165 2.07% 2.43%
C 7986 6802 1 1 0.01% 0.01%
D 7986 6802 136 136 1.70% 2.00%

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 3050879 19260.24 761 746 158.4
A 13 248 12985 77.28 761 746 158.4
A 2 79 12493 74.18 761 746 158.4
B 3 112 1682029 11360.55 758 735 148.0
B 10 246 1187738 8020.61 758 735 148.0
B 12 111 17895 115.95 758 735 148.0
C 12 2 12694 65.73 772 774 181.4
C 12 249 12026 62.04 772 774 181.4
C 13 61 5078 23.73 772 774 181.4
D 11 241 694218 3606.53 756 733 192.3
D 2 37 566661 2943.16 756 733 192.3
D 5 171 91584 472.48 756 733 192.3

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