ASTROSAT CZTI

Data Quality Report

Orbit 13999

Creation date: 2024-06-27T16:48:51.901068
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_038T02_9000002068_13999cztM0_level2.evt modeM0/AS1A04_038T02_9000002068_13999cztM0_level2_quad_clean.evt
Size (bytes)474,863,040128,099,520
Size452.9 MB 122.2 MB
Events in quadrant A3,172,773867,325
Events in quadrant B3,582,453874,813
Events in quadrant C3,132,378846,113
Events in quadrant D4,028,281814,212

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141803
B0152912
C0139252
D0167872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6848691.007593%
B6848951.387266%
C6848200.292056%
D68481602.336449%

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 7669 6850 3 3 0.04% 0.04%
B 7669 6850 24 24 0.31% 0.35%
C 7669 6850 3 3 0.04% 0.04%
D 7669 6850 135 135 1.76% 1.97%

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 14 111 75382 468.56 787 771 159.2
A 12 189 18214 109.54 787 771 159.2
A 1 162 16097 96.25 787 771 159.2
B 0 219 222906 1499.45 790 771 148.1
B 0 189 84144 562.78 790 771 148.1
B 3 64 73204 488.94 790 771 148.1
C 3 233 165267 951.89 757 761 172.8
C 14 234 11683 63.2 757 761 172.8
C 13 61 5558 27.76 757 761 172.8
D 1 52 457360 2407.4 747 725 189.7
D 10 157 291960 1535.41 747 725 189.7
D 13 189 183203 962.03 747 725 189.7

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