ASTROSAT CZTI

Data Quality Report

Orbit 17599

Creation date: 2024-06-27T17:38:27.698799
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/AS1A05_056T01_9000002604_17599cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17599cztM0_level2_quad_clean.evt
Size (bytes)476,556,48077,379,840
Size454.5 MB 73.8 MB
Events in quadrant A3,293,368477,337
Events in quadrant B3,248,912493,743
Events in quadrant C4,314,301467,796
Events in quadrant D3,146,569462,664

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135622
B0134192
C0177962
D0132652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6321600.949217%
B6321330.522069%
C63221021.613413%
D6322160.253084%

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 7576 6322 32 32 0.42% 0.51%
B 7576 6322 0 0 0.00% 0.00%
C 7577 6323 0 0 0.00% 0.00%
D 7577 6323 0 0 0.00% 0.00%

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 14 237 142191 869.22 820 806 162.7
A 0 226 7043 38.34 820 806 162.7
A 12 194 5966 31.72 820 806 162.7
B 12 111 18476 113.22 831 811 156.0
B 11 111 16015 97.44 831 811 156.0
B 14 111 14035 84.75 831 811 156.0
C 3 233 984338 5299.05 805 815 185.6
C 14 238 127742 683.86 805 815 185.6
C 5 218 59224 314.7 805 815 185.6
D 4 239 43343 218.46 809 787 194.8
D 1 52 42551 214.4 809 787 194.8
D 2 234 21701 107.36 809 787 194.8

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