ASTROSAT CZTI

Data Quality Report

Orbit 17070

Creation date: 2024-06-27T17:31:38.392169
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/AS1T03_004T01_9000002532_17070cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17070cztM0_level2_quad_clean.evt
Size (bytes)502,718,40090,587,520
Size479.4 MB 86.4 MB
Events in quadrant A3,559,963560,422
Events in quadrant B3,733,461571,020
Events in quadrant C3,670,678548,232
Events in quadrant D3,745,695536,508

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156121
B0158401
C0157621
D0164241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75752272.996700%
B75752463.247525%
C75752232.943894%
D75761732.283527%

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 7615 7576 0 0 0.00% 0.00%
B 7615 7576 1 1 0.01% 0.01%
C 7615 7576 0 0 0.00% 0.00%
D 7616 7577 29 29 0.38% 0.38%

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 0 226 8000 37.75 924 900 188.1
A 3 137 6906 31.93 924 900 188.1
A 12 194 6821 31.48 924 900 188.1
B 3 209 40507 221.09 920 896 179.2
B 0 219 26500 142.91 920 896 179.2
B 0 197 22202 118.92 920 896 179.2
C 14 238 136640 651.97 882 886 208.2
C 3 233 82326 391.12 882 886 208.2
C 13 61 6277 25.89 882 886 208.2
D 5 222 175084 790.53 898 867 220.4
D 10 70 150153 677.4 898 867 220.4
D 2 234 31209 137.68 898 867 220.4

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