ASTROSAT CZTI

Data Quality Report

Orbit 14614

Creation date: 2024-06-27T16:57:31.165016
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/AS1A04_016T01_9000002152_14614cztM0_level2.evt modeM0/AS1A04_016T01_9000002152_14614cztM0_level2_quad_clean.evt
Size (bytes)500,486,40068,794,560
Size477.3 MB 65.6 MB
Events in quadrant A3,684,990410,809
Events in quadrant B3,479,802410,872
Events in quadrant C4,076,271397,066
Events in quadrant D3,462,733398,187

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151293
B0144682
C0167152
D0147532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6690901.345291%
B6690961.434978%
C6690691.031390%
D6690991.479821%

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 7706 6691 0 0 0.00% 0.00%
B 7706 6691 8 8 0.10% 0.12%
C 7706 6691 1 1 0.01% 0.01%
D 7706 6691 17 17 0.22% 0.25%

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 1 162 154397 891.77 845 828 172.2
A 1 178 61029 349.59 845 828 172.2
A 1 161 54951 314.29 845 828 172.2
B 0 229 77297 473.0 841 818 161.7
B 0 189 45850 278.51 841 818 161.7
B 12 111 19261 114.06 841 818 161.7
C 3 233 898278 4715.38 815 819 190.3
C 13 61 5763 25.98 815 819 190.3
C 3 232 2328 7.93 815 819 190.3
D 10 199 138975 713.01 818 800 193.8
D 10 70 120796 619.2 818 800 193.8
D 12 110 67452 343.94 818 800 193.8

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