ASTROSAT CZTI

Data Quality Report

Orbit 13333

Creation date: 2024-06-27T16:39:15.785859
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_101T01_9000001984_13333cztM0_level2.evt modeM0/AS1A04_101T01_9000001984_13333cztM0_level2_quad_clean.evt
Size (bytes)443,891,52096,814,080
Size423.3 MB 92.3 MB
Events in quadrant A3,130,115621,007
Events in quadrant B3,354,898644,691
Events in quadrant C3,442,533619,670
Events in quadrant D3,071,190590,463

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135743
B0141722
C0143422
D0137212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6537440.673092%
B65371081.652134%
C6537791.208505%
D6537190.290653%

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 7458 6539 3 3 0.04% 0.05%
B 7458 6539 22 22 0.29% 0.34%
C 7458 6539 55 55 0.74% 0.84%
D 7458 6539 4 4 0.05% 0.06%

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 15270 87.7 804 788 165.1
A 9 143 11608 65.52 804 788 165.1
A 0 226 7175 38.68 804 788 165.1
B 3 64 79851 502.49 815 793 157.3
B 10 245 37637 234.18 815 793 157.3
B 3 209 21404 131.0 815 793 157.3
C 15 208 253834 1390.8 784 788 181.9
C 3 233 102318 558.03 784 788 181.9
C 6 96 30636 164.05 784 788 181.9
D 1 52 52621 276.69 775 755 187.5
D 8 195 36942 193.05 775 755 187.5
D 2 234 21350 109.87 775 755 187.5

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