ASTROSAT CZTI

Data Quality Report

Orbit 24204

Creation date: 2024-06-27T19:03:26.382362
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/AS1A07_160T05_9000003580_24204cztM0_level2.evt modeM0/AS1A07_160T05_9000003580_24204cztM0_level2_quad_clean.evt
Size (bytes)502,058,88091,886,400
Size478.8 MB 87.6 MB
Events in quadrant A3,469,341596,512
Events in quadrant B3,466,363598,375
Events in quadrant C3,840,991555,483
Events in quadrant D3,960,796552,371

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144032
B0143572
C0152672
D0159912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68811872.717628%
B68812223.226275%
C68812794.054643%
D68811582.296178%

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 9031 6881 0 0 0.00% 0.00%
B 9031 6881 0 0 0.00% 0.00%
C 9031 6882 49 49 0.54% 0.71%
D 9031 6882 32 32 0.35% 0.46%

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 19537 104.19 895 876 179.1
A 13 254 10555 54.04 895 876 179.1
A 3 137 7991 39.72 895 876 179.1
B 12 111 20213 115.51 882 859 167.5
B 11 111 18024 102.45 882 859 167.5
B 14 111 16330 92.34 882 859 167.5
C 7 247 223805 1152.29 839 842 193.5
C 2 16 209223 1076.93 839 842 193.5
C 14 238 135799 697.47 839 842 193.5
D 8 195 332699 1597.46 860 835 207.7
D 7 238 273867 1314.27 860 835 207.7
D 12 218 55140 261.4 860 835 207.7

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