ASTROSAT CZTI

Data Quality Report

Orbit 28070

Creation date: 2024-06-27T19:47:43.595493
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/AS1A10_073T01_9000004056_28070cztM0_level2.evt modeM0/AS1A10_073T01_9000004056_28070cztM0_level2_quad_clean.evt
Size (bytes)682,200,000129,582,720
Size650.6 MB 123.6 MB
Events in quadrant A3,275,397924,024
Events in quadrant B5,417,920870,141
Events in quadrant C5,962,478829,452
Events in quadrant D5,551,628833,184

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139370
B0203550
C0223190
D0210090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6705931.387025%
B670676411.392783%
C67055508.202834%
D67054747.069351%

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 7270 6706 0 0 0.00% 0.00%
B 7271 6707 498 498 6.85% 7.43%
C 7270 6705 150 150 2.06% 2.24%
D 7270 6705 351 351 4.83% 5.23%

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 0 13 109291 665.48 818 802 163.0
A 13 254 12228 70.09 818 802 163.0
A 3 137 7654 42.03 818 802 163.0
B 10 245 2295354 15809.4 779 761 145.1
B 4 52 17592 115.96 779 761 145.1
B 12 111 17335 114.19 779 761 145.1
C 3 233 2874605 16346.93 759 760 175.8
C 14 238 122683 693.52 759 760 175.8
C 13 61 5188 25.19 759 760 175.8
D 1 52 1318119 7179.76 770 749 183.5
D 8 195 555351 3022.62 770 749 183.5
D 2 250 535582 2914.88 770 749 183.5

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