ASTROSAT CZTI

Data Quality Report

Orbit 05978

Creation date: 2024-06-27T15:01:25.349223
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_086T01_9000000774_05978cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05978cztM0_level2_quad_clean.evt
Size (bytes)431,447,040126,164,160
Size411.5 MB 120.3 MB
Events in quadrant A3,032,845840,109
Events in quadrant B3,251,825869,705
Events in quadrant C3,075,445847,819
Events in quadrant D3,247,578793,721

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139443
B0143442
C0140392
D0147105

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6740310.459941%
B6740660.979228%
C6740390.578635%
D6739761.127764%

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 9296 6743 4 4 0.04% 0.06%
B 9296 6743 6 6 0.06% 0.09%
C 9296 6743 10 10 0.11% 0.15%
D 9295 6742 39 39 0.42% 0.58%

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 4 2 31002 192.83 770 754 156.9
A 15 234 16843 102.56 770 754 156.9
A 8 192 11856 70.77 770 754 156.9
B 4 81 79333 530.76 789 770 148.0
B 4 48 28389 186.59 789 770 148.0
B 0 214 26043 170.74 789 770 148.0
C 1 16 60982 344.91 759 761 174.6
C 9 54 22997 127.35 759 761 174.6
C 1 241 18304 100.48 759 761 174.6
D 6 112 124280 675.35 744 719 183.0
D 2 63 113783 617.97 744 719 183.0
D 8 195 61008 329.52 744 719 183.0

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