ASTROSAT CZTI

Data Quality Report

Orbit 08107

Creation date: 2024-06-27T15:28:07.657729
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/AS1G06_033T01_9000001116_08107cztM0_level2.evt modeM0/AS1G06_033T01_9000001116_08107cztM0_level2_quad_clean.evt
Size (bytes)469,946,88084,723,840
Size448.2 MB 80.8 MB
Events in quadrant A3,796,326526,658
Events in quadrant B3,304,163535,665
Events in quadrant C3,151,014540,849
Events in quadrant D3,544,413514,150

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156433
B0138662
C0134012
D0147982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6427420.653493%
B6427550.855765%
C6427160.248950%
D64271953.034075%

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 7582 6428 0 0 0.00% 0.00%
B 7582 6428 7 7 0.09% 0.11%
C 7582 6428 0 0 0.00% 0.00%
D 7582 6428 147 147 1.94% 2.29%

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 8 15 675507 4089.02 810 794 165.0
A 0 226 7542 40.9 810 794 165.0
A 12 194 7180 38.7 810 794 165.0
B 11 51 58119 367.42 820 802 156.0
B 10 16 26109 162.23 820 802 156.0
B 0 214 23117 143.05 820 802 156.0
C 1 16 19747 102.05 802 809 185.6
C 13 61 6132 28.68 802 809 185.6
C 14 67 3151 12.62 802 809 185.6
D 1 52 496506 2420.47 781 764 204.8
D 12 233 52710 253.63 781 764 204.8
D 5 233 26999 128.09 781 764 204.8

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